# Cambridge Health Alliance: Emergency Room, Cambridge: an emergency room in Cambridge (2026 guide)

Source: Local AI Registry, https://localairegistry.com/biz/ma/cambridge/cambridge-health-alliance-emergency-room-cambridge-ma. Free to reuse with a link back.

By Steve Lee, founder and CEO of Local AI Registry. Fact-checked against 33 sources. Updated 2026-08-25. Owner review: not yet.

Canonical: https://localairegistry.com/biz/ma/cambridge/cambridge-health-alliance-emergency-room-cambridge-ma

## Photos

- ![Photo 1](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmt8owbdk06wxyev798s49ubw%2F0.jpg)
- ![Photo 2](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmt8owbdk06wxyev798s49ubw%2F1.jpg)
- ![Photo 3](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmt8owbdk06wxyev798s49ubw%2F2.jpg)
- ![Photo 4](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmt8owbdk06wxyev798s49ubw%2F3.jpg)


## In short

Cambridge Health Alliance: Emergency Room is an emergency room. Its AI Score is 48 of 100, which is fair.

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, ChatGPT and Perplexity are saying, not confirmed by anyone). Every mark points to a reference at the end of this page.


## Key facts

| Fact | Value |
| --- | --- |
| Type | Emergency room |
| Address | 1493 Cambridge St, Cambridge, MA 02139, USA |
| Hours | Mon to Sun Open 24 hours |
| Phone | (617) 665-1000 |
| Owner | Nothing found |
| Rating | 3.1 across 71 reviews on Google |
| Known for | Nothing found |
| Prices | Nothing found |
| Quietest time | Nothing found |
| Parking | Nothing found |
| Last verified | September 20, 2026, 6:17 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 | 1493 Cambridge St, Cambridge, MA 02139, USA | Confirmed | Google Business Profile, checked Aug 25, 2026 |
| Location info | Description | 1493 Cambridge St, Cambridge, MA 02139 | Confirmed | Google Business Profile, checked Aug 25, 2026 |
| Location info | Hours | Mon to Sun Open 24 hours | Confirmed | Google Business Profile, checked Aug 25, 2026 |
| Location info | Mondays | Open 24 hours | Confirmed | Google Business Profile, checked Aug 25, 2026 |
| Location info | Name | Cambridge Health Alliance: Emergency Room | Confirmed | Google Business Profile, checked Aug 25, 2026 |
| Location info | Phone | (617) 665-1000 | Confirmed | Google Business Profile, checked Aug 25, 2026 |
| Hours | Monday | Open 24 hours | Confirmed | Google Business Profile, checked Aug 25, 2026 |
| Hours | Tuesday | Open 24 hours | Confirmed | Google Business Profile, checked Aug 25, 2026 |
| Hours | Wednesday | Open 24 hours | Confirmed | Google Business Profile, checked Aug 25, 2026 |
| Hours | Thursday | Open 24 hours | Confirmed | Google Business Profile, checked Aug 25, 2026 |
| Hours | Friday | Open 24 hours | Confirmed | Google Business Profile, checked Aug 25, 2026 |
| Hours | Saturday | Open 24 hours | Confirmed | Google Business Profile, checked Aug 25, 2026 |
| Hours | Sunday | Open 24 hours | Confirmed | Google Business Profile, checked Aug 25, 2026 |
| Services | Service | 2019 academic annual report | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | About cha | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Aging wisely program | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Cha connect | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Cha visitor policy | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Community health | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Donate | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Emergency | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Emergency medical care | AI guess | Nothing found |
| Services | Service | Family medicine | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Foundation board | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Get healthy | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Health improvement team | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Institutional review board | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Mbta information | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Medical records | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Midwifery | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Mychart | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Nutrition | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Nutrition counseling | AI guess | Nothing found |
| Services | Service | Obstetrics and gynecology | AI guess | Nothing found |
| Services | Service | Obstetrics gynecology | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Opportunities | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Patients visitors | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Podiatric surgery | AI guess | Nothing found |
| Services | Service | Podiatric surgery residency | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Population health mngmnt | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Pro | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Psychiatry | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Psychology training programs | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Public records | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Research | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Volunteer | Confirmed | Business website, checked Sep 19, 2026 |
| Services | Service | Youth initiatives | Confirmed | Business website, checked Sep 19, 2026 |
| Links | Instagram | https://www.instagram.com/challiance | Confirmed | Business website, checked Sep 20, 2026 |
| Links | Website | http://challiance.org/ | Confirmed | Google Business Profile, checked Aug 25, 2026 |


## Services and prices

These are the 30 services Cambridge Health Alliance offers, with the price where we have one and where it came from.

| Service | Price | Price mark | Price evidence | Service mark |
| --- | --- | --- | --- | --- |
| About cha |  |  |  | Confirmed |
| Volunteer |  |  |  | Confirmed |
| 2019 academic annual report |  |  |  | Confirmed |
| Medical records |  |  |  | Confirmed |
| Family medicine |  |  |  | Confirmed |
| Midwifery |  |  |  | Confirmed |
| Podiatric surgery residency |  |  |  | Confirmed |
| Population health mngmnt |  |  |  | Confirmed |
| Pro |  |  |  | Confirmed |
| Foundation board |  |  |  | Confirmed |
| Get healthy |  |  |  | Confirmed |
| Health improvement team |  |  |  | Confirmed |
| Institutional review board |  |  |  | Confirmed |
| Psychiatry |  |  |  | Confirmed |
| Psychology training programs |  |  |  | Confirmed |
| Youth initiatives |  |  |  | Confirmed |
| Aging wisely program |  |  |  | Confirmed |
| Cha connect |  |  |  | Confirmed |
| Cha visitor policy |  |  |  | Confirmed |
| Mbta information |  |  |  | Confirmed |
| Mychart |  |  |  | Confirmed |
| Nutrition |  |  |  | Confirmed |
| Obstetrics gynecology |  |  |  | Confirmed |
| Patients visitors |  |  |  | Confirmed |
| Opportunities |  |  |  | Confirmed |
| Emergency |  |  |  | Confirmed |
| Public records |  |  |  | Confirmed |
| Research |  |  |  | Confirmed |
| Donate |  |  |  | Confirmed |
| Community health |  |  |  | Confirmed |


### Known for

Reviews not read yet, back on Scan Day.


## The team

Nothing found


## Visiting Cambridge Health Alliance

Address: 1493 Cambridge St, Cambridge, MA 02139, USA. Phone: (617) 665-1000. Hours: Mon to Sun Open 24 hours. (Confirmed, Google Business Profile, checked August 25, 2026 at 9:17 AM.)


### Location info from Google Business Profile

Business description, written by Cambridge Health Alliance on its Google Business Profile: "1493 Cambridge St, Cambridge, MA 02139"


### When to go

Busy times not read yet, back on Scan Day.


### Parking and getting in

Nothing found


### Nearby

| Place | Type | Distance |
| --- | --- | --- |
| Cambridge St opp Highland Ave - Cambridge Hospital | Bus stop | 1 min walk |
| Cambridge St @ Highland Ave | Bus stop | 1 min walk |
| 45 Beacon St | Bus stop | 3 min walk |
| Beacon St opp Concord Ave | Bus stop | 3 min walk |
| Beacon St @ Cooney St | Bus stop | 3 min walk |
| Tall Order | Restaurant | 3 min walk |


## Reputation

3.1 average across 71 reviews: Google 25. (Confirmed, read August 25, 2026.)

The ER is criticized for inconsistent care quality, with reports of both attentive staff and alarming neglect. (AI guess, from 71 reviews.)


### What people like

- Prompt service for urgent cases


### What people do not like

- Long waits to be seen
- Neglectful treatment of patients
- Rude and unprofessional staff behavior


### Press

No press story about Cambridge Health Alliance found yet.


### Awards

None named yet.


### Directories

Listed on 5 of the 22 directories we checked.

| Directory | Listed |
| --- | --- |
| Alignable | Not listed |
| Angi | Not listed |
| Apple Maps | Listed |
| BBB | Not listed |
| Birdeye | Not listed |
| Brownbook | Not listed |
| Chamber of Commerce | Not listed |
| Cylex | Not listed |
| DexKnows | Not listed |
| Facebook | Listed |
| Foursquare | Not listed |
| Hotfrog | Not listed |
| MapQuest | Listed |
| MerchantCircle | Not listed |
| Nextdoor | Listed |
| Superpages | Not listed |
| Thumbtack | Not listed |
| Trustpilot | Not listed |
| Tupalo | Not listed |
| Yellowbook | Not listed |
| Yellow Pages | Not listed |
| Yelp | Listed |


## Recent updates from Cambridge Health Alliance

Cambridge Health Alliance hasn't posted an update here yet.


## Questions people ask


### genuinely, what is good about this one

No answer yet


### Anything this place is known for doing well?

No answer yet


### bad experiences at Cambridge Health Alliance, anyone?

No answer yet


### Are the hours on Google right for Cambridge Health Alliance?

No answer yet


### people keep recommending Cambridge Health Alliance, what for?

No answer yet


### is Cambridge expensive for this, or is it just here

No answer yet


### where does this place post updates

No answer yet


### best emergency room in Cambridge

No answer yet


### anyone been to both here and Mount Auburn Hospital?

No answer yet


### membership, worth it or not

No answer yet


### walk ins, or is it booked solid

No answer yet


### Somewhere to park near Cambridge Health Alliance?

No answer yet


### Booking here, how does it work?

No answer yet


### do I need to fill anything in beforehand

No answer yet


### anywhere on Cambridge to sit while I wait

No answer yet


### prices round here, anyone got a number

No answer yet


## What AI gets wrong about Cambridge Health Alliance

We ask Gemini, ChatGPT and Perplexity about Cambridge Health Alliance. These are the answers that disagree with the record.

ChatGPT and Gemini, read by Local AI Registry on Sep 20, 2026. Perplexity, read by Local AI Registry on Sep 5, 2026.

No capture has disagreed with the record yet.


## The AI Score: 48 of 100

The AI Score measures how likely AI engines are to recommend a business, and how accurately. Emergency rooms on the registry run 22 to 69. Fair starts at 45, good at 65. Cambridge Health Alliance scores 48. The same method scores every business on the registry.

| Signal | Weight | Score | What it measures | Cambridge Health Alliance |
| --- | --- | --- | --- | --- |
| Retrieval grounding | 26 | 100 | 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. | Good |
| Off-property attestation | 20 | 40 | 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 14 answers that recommended anyone. 13 more named nobody, which is not a loss and is not scored. |
| Reviews & response | 12 | 64 | 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. | Fair |
| Backlink & citation authority | 8 | 65 | Domain authority and editorial quality of the sources that attest to you. | Good |
| Google Business Profile | 8 | 84 | Required and recommended fields; update cadence. The listing AI pulls from first. | Good |
| Speed & mobile | 7 | 26 | Core Web Vitals at the 75th percentile, on a real phone. | Poor |
| Content freshness & schema | 5 | 84 | Crawl recency, intent alignment, valid JSON-LD, canonicals. | Good |

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


## How AI decides what to tell you about an emergency room

When you ask ChatGPT, Gemini or Google about a local business, the AI doesn't visit it. It reads what's already written about it: the business's website, its Google Business Profile, review sites, news stories and directories like this one. Then it repeats what those sources agree on.

That's why AI gets small facts wrong. If Yelp says a place is open Mondays and the website says it isn't, 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 names who helped and what they did tells an AI far more than one that says "great place."


## How to choose an emergency room in Massachusetts, with or without AI

A few checks take ten minutes and tell you more than any rating.

- Check that the hours and phone number match on Google, Yelp and the business's own website. Mismatches are how people end up at a locked door.
- Read reviews that name a person and what they did. Vague praise is easy to fake.
- Look for recent reviews and recent posts. A page nobody has touched in a year may not match the business today.
- Ask for the price before you go, and ask what it includes.
- Where the work needs a license, ask whose license it is and look it up with Massachusetts.


## 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 Cambridge Health Alliance 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 Cambridge Health Alliance |
| --- | --- | --- | --- | --- |
| Cambridge Health Alliance: Emergency Room | LocalBusiness | #business | http://challiance.org/ | Subject of this page |
| Cambridge, Massachusetts | City | #city | Nothing found | City Cambridge Health Alliance 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 emergency rooms in Cambridge, linked to the lists and towns around it.


### Lists

- Best emergency rooms in Cambridge: https://localairegistry.com/leaderboards/ma/cambridge/emergency-room
- Best businesses in Cambridge: https://localairegistry.com/leaderboards/ma/cambridge


### Nearby

- /boston: https://localairegistry.com/leaderboards/ma/boston
- /newton: https://localairegistry.com/leaderboards/ma/newton
- /somerville: https://localairegistry.com/leaderboards/ma/somerville
- /brookline: https://localairegistry.com/leaderboards/ma/brookline
- /waltham: https://localairegistry.com/leaderboards/ma/waltham
- /wellesley: https://localairegistry.com/leaderboards/ma/wellesley


### Every list

- Every leaderboard in Massachusetts: https://localairegistry.com/leaderboards/ma


## 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 Cambridge Health Alliance: Emergency Room. 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:ChIJAQAAAFR344kR7ecffx85CDQ (accessed Aug 25, 2026)
- [2] challiance.org, https://www.challiance.org/community-health/youth-initiatives (accessed Sep 19, 2026)
- [3] challiance.org, https://www.challiance.org/about-cha (accessed Sep 19, 2026)
- [4] challiance.org, https://www.challiance.org/community-health/aging-wisely-program (accessed Sep 19, 2026)
- [5] challiance.org, https://www.challiance.org/get-healthy/cha-connect (accessed Sep 19, 2026)
- [6] challiance.org, https://www.challiance.org/patients-visitors/cha-visitor-policy (accessed Sep 19, 2026)
- [7] challiance.org, https://www.challiance.org/community-health (accessed Sep 19, 2026)
- [8] challiance.org, https://www.challiance.org/donate (accessed Sep 19, 2026)
- [9] challiance.org, https://www.challiance.org/services-programs/emergency (accessed Sep 19, 2026)
- [10] challiance.org, https://www.challiance.org/patients-visitors/public-records (accessed Sep 19, 2026)
- [11] challiance.org, https://www.challiance.org/pro/research (accessed Sep 19, 2026)
- [12] challiance.org, https://www.challiance.org/patients-visitors/volunteer (accessed Sep 19, 2026)
- [13] challiance.org, https://www.challiance.org/academics/2019-academic-annual-report (accessed Sep 19, 2026)
- [14] challiance.org, https://www.challiance.org/academics/family-medicine (accessed Sep 19, 2026)
- [15] challiance.org, https://www.challiance.org/donate/foundation-board (accessed Sep 19, 2026)
- [16] challiance.org, https://www.challiance.org/get-healthy (accessed Sep 19, 2026)
- [17] challiance.org, https://www.challiance.org/community-health/health-improvement-team (accessed Sep 19, 2026)
- [18] challiance.org, https://www.challiance.org/academics/institutional-review-board (accessed Sep 19, 2026)
- [19] challiance.org, https://www.challiance.org/patients-visitors/mbta-information (accessed Sep 19, 2026)
- [20] challiance.org, https://www.challiance.org/patients-visitors/medical-records (accessed Sep 19, 2026)
- [21] challiance.org, https://www.challiance.org/obstetrics-gynecology/midwifery (accessed Sep 19, 2026)
- [22] challiance.org, https://www.challiance.org/mychart (accessed Sep 19, 2026)
- [23] challiance.org, https://www.challiance.org/services-programs/nutrition (accessed Sep 19, 2026)
- [24] challiance.org, https://www.challiance.org/obstetrics-gynecology (accessed Sep 19, 2026)
- [25] challiance.org, https://www.challiance.org/pro/opportunities (accessed Sep 19, 2026)
- [26] challiance.org, https://www.challiance.org/patients-visitors (accessed Sep 19, 2026)
- [27] challiance.org, https://www.challiance.org/academics/podiatric-surgery-residency (accessed Sep 19, 2026)
- [28] challiance.org, https://www.challiance.org/about-cha/population-health-mngmnt (accessed Sep 19, 2026)
- [29] challiance.org, https://www.challiance.org/pro (accessed Sep 19, 2026)
- [30] challiance.org, https://www.challiance.org/academics/psychiatry (accessed Sep 19, 2026)
- [31] challiance.org, https://www.challiance.org/academics/psychology-training-programs (accessed Sep 19, 2026)
- [32] AI engine output: ChatGPT and Gemini, read by Local AI Registry on Sep 20, 2026; Perplexity, read by Local AI Registry on Sep 5, 2026, https://localairegistry.com/methodology (accessed Sep 19, 2026)
- [33] challiance.org, http://challiance.org/ (accessed Sep 20, 2026)