# Carbon Health Urgent & Primary Care San Mateo - Hillsdale Mall, San Mateo: an urgent care center in San Mateo (2026 guide)

Source: Local AI Registry, https://localairegistry.com/biz/ca/san-mateo/carbon-health-urgent-and-primary-care-san-mateo-hillsdale-mall-san-mateo-ca. Free to reuse with a link back.

By Steve Lee, founder and CEO of Local AI Registry. Fact-checked against 30 sources. Updated 2026-08-17. Owner review: not yet.

Canonical: https://localairegistry.com/biz/ca/san-mateo/carbon-health-urgent-and-primary-care-san-mateo-hillsdale-mall-san-mateo-ca

## Photos

- ![Photo 1](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmswoqypb09f4ye99pgquwkvq%2F0.jpg)
- ![Photo 2](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmswoqypb09f4ye99pgquwkvq%2F1.jpg)
- ![Photo 3](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmswoqypb09f4ye99pgquwkvq%2F2.jpg)
- ![Photo 4](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmswoqypb09f4ye99pgquwkvq%2F3.jpg)
- ![Photo 5](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmswoqypb09f4ye99pgquwkvq%2F4.jpg)


## In short

Carbon Health Urgent & Primary Care San Mateo - Hillsdale Mall is an urgent care center. Its AI Score is 42 of 100, which is poor.

Every fact on this page carries one of three marks: Confirmed (from their website, Google Business Profile, review sites, licensing boards, or measured by Local AI Registry), Visitor submitted (added by a person, with a date and how they know), or AI guess (what AI engines like Gemini and ChatGPT are saying, not confirmed by anyone). Every mark points to a reference at the end of this page.


## Key facts

| Fact | Value |
| --- | --- |
| Type | Urgent care center |
| Address | 46 Hillsdale Mall, San Mateo, CA 94403, USA |
| Hours | Mon to Sun 9 AM to 7 PM |
| Phone | (650) 292-0847 |
| Medical director | Nothing found |
| Rating | 4.3 across 933 reviews on Google |
| Known for | Carbon Health is best known for its efficient PPD and TB testing services, providing quick access to essential health screenings. Patients value the convenience and professionalism of the staff. |
| Prices | Nothing found |
| Quietest time | Nothing found |
| Parking | Nothing found |
| Last verified | September 18, 2026, 10:12 PM |


## All the details

Every row is something the owner can add or correct. Each one is marked Confirmed, Visitor submitted or AI guess, with where it came from.

| Group | Fact | Value | Mark | Evidence |
| --- | --- | --- | --- | --- |
| Location info | Address | 46 Hillsdale Mall, San Mateo, CA 94403, USA | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Location info | Description | As a local urgent care & workplace health medical center which welcomes walk-ins, Carbon Health in San Mateo, CA commonly sees patients for reasons such as: UTIs, sore throat, sinus infection, COVID testing, cough, abdominal pain, injury, rash, bronchitis symptoms, back pain, STI test (STD test), ear aches & concerns, fever, strep throat, lacerations, chest pain, eye pain, stitches removal & more reasons. We also provide services to help employees start and/or return to work: including pre-employment & DOT physicals, workers comp, BATs, urine drug screening and more. With an end-to-end platform that supports ongoing care management and virtual visits, Carbon Health ensures high-quality care is affordable and always in reach. | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Location info | Hours | Mon to Sun 9:00 AM to 7:00 PM | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Location info | Name | Carbon Health Urgent & Primary Care San Mateo - Hillsdale Mall | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Location info | Phone | (650) 292-0847 | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Hours | Monday | 9:00 AM to 7:00 PM | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Hours | Tuesday | 9:00 AM to 7:00 PM | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Hours | Wednesday | 9:00 AM to 7:00 PM | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Hours | Thursday | 9:00 AM to 7:00 PM | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Hours | Friday | 9:00 AM to 7:00 PM | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Hours | Saturday | 9:00 AM to 7:00 PM | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Hours | Sunday | 9:00 AM to 7:00 PM | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Services | Service | Abdominal pain treatment | AI guess | Nothing found |
| Services | Service | Abnormal liver enzymes | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Abnormal vaginal bleeding | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Acute diarrhea | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Altered mental state | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Amnesia | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Anal itching | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Anal pain | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Asthma follow up | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Back pain treatment | AI guess | Nothing found |
| Services | Service | Bacterial infection | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Bad breath halitosis | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Basic physical occ health | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Bethematchphysical | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Blister | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Bronchitis treatment | AI guess | Nothing found |
| Services | Service | Car accident neck pain | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Chest pressure | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Cholesterol test | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Cold sore | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Confirm identity | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Cough | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Covid home test redirect | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Covid ready education | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | COVID testing | AI guess | Nothing found |
| Services | Service | Download | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Ear ache treatment | AI guess | Nothing found |
| Services | Service | Injury treatment | AI guess | Nothing found |
| Services | Service | Occ health form | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Partners | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Rash | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Sinus infection | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Sore throat treatment | AI guess | Nothing found |
| Services | Service | STI testing | AI guess | Nothing found |
| Services | Service | Uc hastings | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | UTI treatment | AI guess | Nothing found |
| Services | Service | Yeast infection | Confirmed | Business website, checked Sep 18, 2026 |
| Links | Facebook | https://facebook.com/carbonhealth | AI guess | Our record |
| Links | Instagram | https://instagram.com/carbonhealth | AI guess | Our record |
| Links | Website | https://carbonhealth.com/locations/san-mateo-ca-hillsdale-mall?utm_source=gmb&utm_medium=referral&utm_campaign=hillsdale-mall&utm_content=website | Confirmed | Google Business Profile, checked Aug 16, 2026 |


## Services and prices

These are the 28 services Carbon offers, with the price where we have one and where it came from.

| Service | Price | Price mark | Price evidence | Service mark |
| --- | --- | --- | --- | --- |
| Acute diarrhea |  |  |  | Confirmed |
| Altered mental state |  |  |  | Confirmed |
| Amnesia |  |  |  | Confirmed |
| Basic physical occ health |  |  |  | Confirmed |
| Bad breath halitosis |  |  |  | Confirmed |
| Download |  |  |  | Confirmed |
| Anal itching |  |  |  | Confirmed |
| Partners |  |  |  | Confirmed |
| Rash |  |  |  | Confirmed |
| Anal pain |  |  |  | Confirmed |
| Uc hastings |  |  |  | Confirmed |
| Sinus infection |  |  |  | Confirmed |
| Asthma follow up |  |  |  | Confirmed |
| Yeast infection |  |  |  | Confirmed |
| Bacterial infection |  |  |  | Confirmed |
| Bethematchphysical |  |  |  | Confirmed |
| Blister |  |  |  | Confirmed |
| Car accident neck pain |  |  |  | Confirmed |
| Cold sore |  |  |  | Confirmed |
| Confirm identity |  |  |  | Confirmed |
| Cough |  |  |  | Confirmed |
| Covid home test redirect |  |  |  | Confirmed |
| Covid ready education |  |  |  | Confirmed |
| Occ health form |  |  |  | Confirmed |
| Cholesterol test |  |  |  | Confirmed |
| Chest pressure |  |  |  | Confirmed |
| Abnormal vaginal bleeding |  |  |  | Confirmed |
| Abnormal liver enzymes |  |  |  | Confirmed |


### Known for

Carbon Health is best known for its efficient PPD and TB testing services, providing quick access to essential health screenings. Patients value the convenience and professionalism of the staff.


## The team

Nothing found


## Visiting Carbon

Address: 46 Hillsdale Mall, San Mateo, CA 94403, USA. Phone: (650) 292-0847. Hours: Mon to Sun 9 AM to 7 PM. (Confirmed, Google Business Profile, checked August 16, 2026 at 8:40 PM.)


### Location info from Google Business Profile

Business description, written by Carbon on its Google Business Profile: "As a local urgent care & workplace health medical center which welcomes walk-ins, Carbon Health in San Mateo, CA commonly sees patients for reasons such as: UTIs, sore throat, sinus infection, COVID testing, cough, abdominal pain, injury, rash, bronchitis symptoms, back pain, STI test (STD test), ear aches & concerns, fever, strep throat, lacerations, chest pain, eye pain, stitches removal & more reasons. We also provide services to help employees start and/or return to work: including pre-employment & DOT physicals, workers comp, BATs, urine drug screening and more. With an end-to-end platform that supports ongoing care management and virtual visits, Carbon Health ensures high-quality care is affordable and always in reach."


### When to go

Busy times not read yet, back on Scan Day.


### Parking and getting in

Nothing found


### Nearby

| Place | Type | Distance |
| --- | --- | --- |
| Palette Tea Garden & Dim Sum 彩苑 | Dim sum restaurant | 1 min walk |
| Philz Coffee | Coffee shop | 1 min walk |
| Blue Whale Poke Bar and Grill | Hawaiian restaurant | 1 min walk |
| KURO-OBI by IPPUDO | Ramen restaurant | 1 min walk |
| Pinstripes | Restaurant | 1 min walk |
| Shake Shack Hillsdale | Hamburger restaurant | 1 min walk |


## Reputation

4.3 average across 933 reviews: Google 25. (Confirmed, read August 16, 2026.)

Carbon Health is noted for its caring staff but struggles with appointment management and billing transparency. (AI guess, from 933 reviews.)


### What people like

- Kristine the PA's professionalism and kindness
- Quick service for UTI symptoms
- Effective care for heart issues
- Fast appointment scheduling


### What people do not like

- Long waits past scheduled appointment times
- Poor communication from front desk staff
- Billing inconsistencies and issues
- Disorganized management during visits


### Press

No press story about Carbon found yet.


### Awards

None named yet.


### Directories

Directory listings not read yet.


## Recent updates from Carbon

Carbon hasn't posted an update here yet.


## Questions people ask


### Why do people rate Carbon?

No answer yet


### opening hours here, what are they these days?

No answer yet


### Somewhere to park near Carbon?

No answer yet


### cheaper than Carbon in San Mateo without it being sketchy?

No answer yet


### services here, what do people go in for?

No answer yet


### what else is on Hillsdale Mall around this place?

No answer yet


### does it hurt, and can you ask for numbing

No answer yet


### membership, worth it or not

No answer yet


### walk in at Carbon in San Mateo, or is it appointment only?

No answer yet


### best urgent care center in San Mateo

No answer yet


### reviews all look glowing, what are the real complaints?

No answer yet


### are the injectors here nurses or doctors

No answer yet


### any last minute appts at Carbon?

No answer yet


### how much is a first visit around here

No answer yet


### Carbon or Sutter?

No answer yet


### people keep recommending Carbon, what for?

No answer yet


### do they do payment plans here?

No answer yet


## What AI gets wrong about Carbon

We ask Gemini and ChatGPT about Carbon. These are the answers that disagree with the record.

ChatGPT and Gemini, read by Local AI Registry on Aug 16, 2026.

No capture has disagreed with the record yet.


## The AI Score: 42 of 100

The AI Score measures how likely AI engines are to recommend a business, and how accurately. Urgent care centers on the registry run 19 to 74. Fair starts at 45, good at 65. Carbon scores 42. The same method scores every business on the registry.

| Signal | Weight | Score | What it measures | Carbon |
| --- | --- | --- | --- | --- |
| Retrieval grounding | 26 | 50 | Whether you appear in the ranked results AI retrieves and cites: AI-Overview citations, organic top-10 for your money queries, and the Bing index ChatGPT leans on. | Fair |
| Off-property attestation | 20 | 42 | Volume and consistency of what others say about you: YouTube mentions, branded web mentions, third-party “best-of” lists. The cause of retrievability. | Poor |
| AI visibility | 14 | 0 | Whether ChatGPT, Gemini, Perplexity, and AI Overviews name you, and whether they name you for the right service. | Named in 0 of 1 answer that recommended anyone. 1 more named nobody, which is not a loss and is not scored. |
| Reviews & response | 12 | 80 | The star average is only one input. We also read volume, velocity, the specificity of review language, and response cadence. Specific reviews are what AI quotes verbatim. | Good |
| Backlink & citation authority | 8 | 63 | Domain authority and editorial quality of the sources that attest to you. | Fair |
| Google Business Profile | 8 | 90 | Required and recommended fields; update cadence. The listing AI pulls from first. | Good |
| Speed & mobile | 7 | 34 | Core Web Vitals at the 75th percentile, on a real phone. | Poor |
| Content freshness & schema | 5 | 72 | Crawl recency, intent alignment, valid JSON-LD, canonicals. | Good |

Full method: https://localairegistry.com/methodology


## How AI decides what to tell you about an urgent care center

When you ask ChatGPT, Gemini or Google for a med spa, the AI does not visit each business. It reads what is already written about it: the business website, its Google Business Profile, review sites like Yelp and RealSelf, news stories, licensing boards and directories like this one. Then it repeats what those sources agree on.

That is why AI gets small facts wrong. If Yelp says a place is open Mondays and the website says it is not, the AI has to pick one. The table above shows the answers that disagree with the record today.

The more sources agree, and the more specific they are, the more confidently AI recommends a business. A review that says "the nurse did half a syringe in my lips and it looks natural" is far more useful to an AI than one that says "great place."


## How to choose an urgent care center in California, with or without AI

A few checks take ten minutes and matter more than any rating. This is general information, not medical advice.

- Look up every injector. Doctors are listed by the California medical board, and nurses and nurse practitioners by its nursing board. Both lookups are free.
- Ask who does the injections, and check that person's license.
- Ask for the price per unit of Botox and per syringe of filler, not per area.
- Read reviews that name a provider and a treatment. Vague praise is easy to fake.
- Check that the hours and phone number match on Google, Yelp and the website. Mismatches are how people end up at a locked door.
- Ask whether they dissolve filler and when they would tell you not to add more.


## How to read the marks on this page

- Confirmed (solid circle): from a known source. The business website, its Google Business Profile, review sites like Yelp, Healthgrades and RealSelf, a licensing board, or measured by Local AI Registry.
- Visitor submitted (hollow circle): added or corrected by a person, with the date and how they know, like a phone call or a visit.
- AI guess (hollow triangle): what AI engines are saying right now. Nobody has confirmed it.


## About the author

Steve Lee is the founder and CEO of Local AI Registry and sets its editorial standards. He is a former Google executive in Search and a former Microsoft executive, with more than 20 years in digital: search, local discovery, and how people find businesses online. He is based in Irvine.

- Expertise: search at Google and Microsoft, AI search, answer engine optimization, generative engine optimization, local SEO, structured data and entity mapping.
- Industry: medical aesthetics, injectables, med spa operations and marketing.
- Disclosure: Local AI Registry sells services to business owners, including Carbon if it claims this page. That does not change what this page says. Every fact carries its source.


## Entity map

Every person, place, organization and treatment named on this page, with a stable ID and a public reference. The JSON-LD below connects them to each other.

| Entity | Type | ID on this page | Same as | Relationship to Carbon |
| --- | --- | --- | --- | --- |
| Carbon Health Urgent & Primary Care San Mateo - Hillsdale Mall | MedicalBusiness | #business | https://carbonhealth.com/locations/san-mateo-ca-hillsdale-mall?utm_source=gmb&utm_medium=referral&utm_campaign=hillsdale-mall&utm_content=website | Subject of this page |
| San Mateo, California | City | #city | Nothing found | City Carbon is in |
| Local AI Registry | Organization | #publisher | https://localairegistry.com | Publisher of this page |
| Steve Lee | Person | #author | https://localairegistry.com/team | Author of this page |


## Topical map

Where this page sits in the registry. It's one profile among the urgent care centers in San Mateo, linked to the lists and towns around it.


### Lists

- Best urgent care centers in San Mateo: https://localairegistry.com/leaderboards/ca/san-mateo/urgent-care-center
- Best businesses in San Mateo: https://localairegistry.com/leaderboards/ca/san-mateo


### Nearby

- /los-angeles: https://localairegistry.com/leaderboards/ca/los-angeles
- /san-francisco: https://localairegistry.com/leaderboards/ca/san-francisco
- /san-jose: https://localairegistry.com/leaderboards/ca/san-jose
- /san-diego: https://localairegistry.com/leaderboards/ca/san-diego
- /irvine: https://localairegistry.com/leaderboards/ca/irvine
- /fresno: https://localairegistry.com/leaderboards/ca/fresno


### Every list

- Every leaderboard in California: https://localairegistry.com/leaderboards/ca


## Frequently asked questions


### What is AI search optimization for local business?

Getting a business named when a neighbor asks ChatGPT, Gemini, or Perplexity for a recommendation. Some call it AI SEO, some call it generative engine optimization. Traditional SEO fights for ten blue links; this fights for the one answer an assistant says out loud. The AI Score on this page measures the eight signals that drive it.


### What is Local AI Registry?

The public record of how AI sees local business. We score every business we list by one published method, we keep the questions people ask about it in one place, and we never sell rank. Looking up any business here is free.


### How does this page help a business get recommended by AI?

Assistants read public pages before they answer. This one states what the business does, what people ask about it, and what the Record answers, in one place a machine can read. Correcting what is wrong here changes what an assistant repeats next.


### Who writes the answers here?

Registry AI writes the first answer under every question, from the Record and the public sources named beneath it. Neighbors write the rest under pseudonyms. A registered owner can reply as the business, and their reply says so.


### I own Carbon Health Urgent & Primary Care San Mateo - Hillsdale Mall. How do I fix something or rank higher?

Register the page. It is free, it takes about five minutes, and it lets you correct the Record and reply as the business. Nothing on this page is for sale, so the only thing that moves the score is the work.


## References


### Sources cited

- [1] Google Business Profile, https://www.google.com/maps/place/?q=place_id:ChIJF2g31hefj4AR32SHZu7yVHM (accessed Aug 16, 2026)
- [2] carbonhealth.com, https://carbonhealth.com/occ-health-form (accessed Sep 18, 2026)
- [3] carbonhealth.com, https://carbonhealth.com/get-care/abnormal-liver-enzymes (accessed Sep 18, 2026)
- [4] carbonhealth.com, https://carbonhealth.com/get-care/abnormal-vaginal-bleeding (accessed Sep 18, 2026)
- [5] carbonhealth.com, https://carbonhealth.com/get-care/acute-diarrhea (accessed Sep 18, 2026)
- [6] carbonhealth.com, https://carbonhealth.com/get-care/altered-mental-state (accessed Sep 18, 2026)
- [7] carbonhealth.com, https://carbonhealth.com/get-care/amnesia (accessed Sep 18, 2026)
- [8] carbonhealth.com, https://carbonhealth.com/get-care/anal-itching (accessed Sep 18, 2026)
- [9] carbonhealth.com, https://carbonhealth.com/get-care/anal-pain (accessed Sep 18, 2026)
- [10] carbonhealth.com, https://carbonhealth.com/get-care/asthma-follow-up (accessed Sep 18, 2026)
- [11] carbonhealth.com, https://carbonhealth.com/get-care/cold-sore (accessed Sep 18, 2026)
- [12] carbonhealth.com, https://carbonhealth.com/confirm-identity (accessed Sep 18, 2026)
- [13] carbonhealth.com, https://carbonhealth.com/get-care/cough (accessed Sep 18, 2026)
- [14] carbonhealth.com, https://carbonhealth.com/covid-home-test-redirect (accessed Sep 18, 2026)
- [15] carbonhealth.com, https://carbonhealth.com/covid-ready-education (accessed Sep 18, 2026)
- [16] carbonhealth.com, https://carbonhealth.com/download (accessed Sep 18, 2026)
- [17] carbonhealth.com, https://carbonhealth.com/partners (accessed Sep 18, 2026)
- [18] carbonhealth.com, https://carbonhealth.com/get-care/rash (accessed Sep 18, 2026)
- [19] carbonhealth.com, https://carbonhealth.com/get-care/sinus-infection (accessed Sep 18, 2026)
- [20] carbonhealth.com, https://carbonhealth.com/uc-hastings (accessed Sep 18, 2026)
- [21] carbonhealth.com, https://carbonhealth.com/get-care/yeast-infection (accessed Sep 18, 2026)
- [22] carbonhealth.com, https://carbonhealth.com/get-care/bacterial-infection (accessed Sep 18, 2026)
- [23] carbonhealth.com, https://carbonhealth.com/get-care/bad-breath-halitosis (accessed Sep 18, 2026)
- [24] carbonhealth.com, https://carbonhealth.com/get-care/basic-physical-occ-health (accessed Sep 18, 2026)
- [25] carbonhealth.com, https://carbonhealth.com/get-care/bethematchphysical (accessed Sep 18, 2026)
- [26] carbonhealth.com, https://carbonhealth.com/get-care/blister (accessed Sep 18, 2026)
- [27] carbonhealth.com, https://carbonhealth.com/get-care/car-accident-neck-pain (accessed Sep 18, 2026)
- [28] carbonhealth.com, https://carbonhealth.com/get-care/chest-pressure (accessed Sep 18, 2026)
- [29] carbonhealth.com, https://carbonhealth.com/get-care/cholesterol-test (accessed Sep 18, 2026)
- [30] AI engine output: ChatGPT and Gemini, read by Local AI Registry on Aug 16, 2026, https://localairegistry.com/methodology (accessed Sep 18, 2026)