Leon Y Cheng, M.D.

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<title>Leon Y Cheng, M.D. | Sunnyvale, CA · reviews &amp; AI Score · Local AI Registry</title>
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        },
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          "name": "anywhere cheaper than Leon Y Cheng, M.D in Sunnyvale that is still good?",
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          "position": 7,
          "name": "anything good on Old San to kill time near Leon Y Cheng, M.D?",
          "url": "https://localairegistry.com/biz/ca/sunnyvale/leon-y-cheng-m-d-sunnyvale-ca/q/what-is-around-leon-y-cheng-m-d-on-old-san"
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        {
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          "name": "Saturdays at Leon Y Cheng, M.D, are they open?",
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        {
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          "name": "where exactly is this place?",
          "url": "https://localairegistry.com/biz/ca/sunnyvale/leon-y-cheng-m-d-sunnyvale-ca/q/where-is-leon-y-cheng-m-d-located"
        },
        {
          "@type": "ListItem",
          "position": 10,
          "name": "people keep recommending Leon Y Cheng, M.D, what for?",
          "url": "https://localairegistry.com/biz/ca/sunnyvale/leon-y-cheng-m-d-sunnyvale-ca/q/what-is-leon-y-cheng-m-d-known-for"
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          "url": "https://localairegistry.com/biz/ca/sunnyvale/leon-y-cheng-m-d-sunnyvale-ca/q/what-should-i-know-before-a-consult-at-leon-y-cheng-m-d"
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          "url": "https://localairegistry.com/biz/ca/sunnyvale/leon-y-cheng-m-d-sunnyvale-ca/q/does-leon-y-cheng-m-d-ever-have-last-minute-openings"
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        {
          "@type": "ListItem",
          "position": 16,
          "name": "which one, Leon Y Cheng, M.D or Kimberley F Ma, D.O?",
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# Local AI Registry

> The public record of what AI assistants say about local businesses. Every entry checked, scored, and kept current.

Local AI Registry is the editorial, never-sponsored record of what local
businesses are known for, and whether AI assistants actually recommend them.
We score every local business the same way and rank them: website, reviews,
AI visibility, and more. Eight signals, one number from 0 to 100. The heaviest
is whether AI can retrieve you at all.

## Read these first

- [Local AI Registry](https://localairegistry.com): AI assistants now decide which local business to recommend.
- [Methodology](https://localairegistry.com/methodology): Eight signals, one number from 0 to 100.
- [Leaderboards](https://localairegistry.com/leaderboards): Browse AI Score leaderboards by state, city, and category.
- [About](https://localairegistry.com/about): The honest record of who AI recommends.
- [Pricing](https://localairegistry.com/pricing): Four levels of presence, from a free registry entry to being the answer AI gives first in your market.
- [Journal](https://localairegistry.com/journal): How AI assistants decide which local businesses to recommend, and what owners can do about it.

## Business pages

- [Sitemap](https://localairegistry.com/sitemap.xml): Every business page on the registry, with the day each was last updated.
- Every business page has a markdown copy at its own address with `.md` on the end. The copy holds the same facts, marks and sources as the page, in the page's order: the photos with their captions, the team and their licenses, the reviews summary, and the questions locals asked with the replies. The page names it in its head and its HTTP `Link` header.

# Leon Y Cheng, M.D., Sunnyvale: a family practice physician in Sunnyvale (2026 guide)

Source: Local AI Registry, https://localairegistry.com/biz/ca/sunnyvale/leon-y-cheng-m-d-sunnyvale-ca. Free to reuse with a link back.

By Steve Lee, founder and CEO of Local AI Registry. Fact-checked against 32 sources. Updated 2026-08-17. Owner review: not yet.

Canonical: https://localairegistry.com/biz/ca/sunnyvale/leon-y-cheng-m-d-sunnyvale-ca

## Photos

- ![Photo 1](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmswnjei201i0ye99l5xkhq17%2F0.jpg)
- ![Photo 2](https://localairegistry.com/api/photo?src=https%3A%2F%2Fseoaesthetic-assets.sfo3.cdn.digitaloceanspaces.com%2Fphotos%2Fcmswnjei201i0ye99l5xkhq17%2F1.jpg)


## In short

Leon Y Cheng, M.D. is a family practice physician in Sunnyvale, CA. Its AI Score is 45 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 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 | Family practice physician |
| Address | 301 Old San Francisco Rd Level 2, Sunnyvale, CA 94086, USA |
| Hours | Mon to Fri 8 AM to 5 PM · Closed Sat to Sun |
| Phone | (408) 730-4262 |
| Medical director | Nothing found |
| Rating | 4.9 across 135 reviews |
| Known for | Nothing found |
| Prices | Nothing found |
| Quietest time | Nothing found |
| Parking | Nothing found |
| Last verified | October 16, 2026, 7:20 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 | Name | Leon Y Cheng, M.D. | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Location info | Address | 301 Old San Francisco Rd Level 2, Sunnyvale, CA 94086, USA | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Location info | Phone | (408) 730-4262 | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Location info | Hours | Mon to Fri 8:00 AM to 5:00 PM · Sat to Sun Closed | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Location info | Description | This provider is part of Sutter Health, dedicated to creating a more personalized healthcare experience. | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Hours | Monday | 8:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Hours | Tuesday | 8:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Hours | Wednesday | 8:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Hours | Thursday | 8:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Hours | Friday | 8:00 AM to 5:00 PM | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Hours | Saturday | Closed | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Hours | Sunday | Closed | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Services | Service | Acute inpatient rehabilitation | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Adult congenital heart disease | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Amyotrophic lateral sclerosis als | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Anesthesia | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Animal assisted therapy | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Audiology | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Autism | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Back spine surgery | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Bariatric surgery | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Behavioral health | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Behavioral health outpatient | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Blood stem cell transplant | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Brain injury rehabilitation | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Breast cancer | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Breast health | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Breast imaging | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Breast reshaping | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Cancer case conference | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Cancer pain management | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Cancer patient navigators | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Cancer rehabilitation | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Cardiac rehabilitation | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Cardiovascular imaging diagnostic | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Cardiovascular surgery | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Child adolescent behavioral health | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Child life program | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Chronic kidney disease | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Colonoscopy | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Colorectal cancer | Confirmed | Business website, checked Sep 18, 2026 |
| Services | Service | Pediatric grief support | Confirmed | Business website, checked Sep 18, 2026 |
| Links | Website | https://www.sutterhealth.org/find-provider/dr-leon-y-cheng-1046238316 | Confirmed | Google Business Profile, checked Aug 16, 2026 |
| Links | Instagram | https://www.instagram.com/sutterhealth | Confirmed | Business website, checked Oct 16, 2026 |
| Links | Facebook | https://www.facebook.com/sutterhealth | Confirmed | Business website, checked Oct 16, 2026 |


## Services and prices

These are the 30 services Leon Y Cheng, M.D offers, with the price where we have one and where it came from.

| Service | Price | Price mark | Price evidence | Service mark |
| --- | --- | --- | --- | --- |
| Anesthesia |  |  |  | Confirmed |
| Blood stem cell transplant |  |  |  | Confirmed |
| Amyotrophic lateral sclerosis als |  |  |  | Confirmed |
| Brain injury rehabilitation |  |  |  | Confirmed |
| Animal assisted therapy |  |  |  | Confirmed |
| Breast cancer |  |  |  | Confirmed |
| Breast health |  |  |  | Confirmed |
| Audiology |  |  |  | Confirmed |
| Cancer case conference |  |  |  | Confirmed |
| Breast reshaping |  |  |  | Confirmed |
| Cancer pain management |  |  |  | Confirmed |
| Autism |  |  |  | Confirmed |
| Cardiac rehabilitation |  |  |  | Confirmed |
| Cardiovascular imaging diagnostic |  |  |  | Confirmed |
| Cardiovascular surgery |  |  |  | Confirmed |
| Back spine surgery |  |  |  | Confirmed |
| Breast imaging |  |  |  | Confirmed |
| Pediatric grief support |  |  |  | Confirmed |
| Adult congenital heart disease |  |  |  | Confirmed |
| Bariatric surgery |  |  |  | Confirmed |
| Behavioral health |  |  |  | Confirmed |
| Behavioral health outpatient |  |  |  | Confirmed |
| Cancer patient navigators |  |  |  | Confirmed |
| Cancer rehabilitation |  |  |  | Confirmed |
| Child adolescent behavioral health |  |  |  | Confirmed |
| Child life program |  |  |  | Confirmed |
| Chronic kidney disease |  |  |  | Confirmed |
| Colonoscopy |  |  |  | Confirmed |
| Colorectal cancer |  |  |  | Confirmed |
| Acute inpatient rehabilitation |  |  |  | Confirmed |


### Known for

Reviews not read yet, back on Scan Day.


## The team

Nothing found


## Visiting Leon Y Cheng, M.D

Address: 301 Old San Francisco Rd Level 2, Sunnyvale, CA 94086, USA. Phone: (408) 730-4262. Hours: Mon to Fri 8 AM to 5 PM · Closed Sat to Sun. (Confirmed, Google Business Profile, checked August 16, 2026 at 8:06 PM.)


### Location info from Google Business Profile

Business description, written by Leon Y Cheng, M.D on its Google Business Profile: "This provider is part of Sutter Health, dedicated to creating a more personalized healthcare experience."


### When to go

Busy times not read yet, back on Scan Day.


### Parking and getting in

Nothing found


### Nearby

| Place | Type | Distance |
| --- | --- | --- |
| PAMF Staff Parking | Parking garage | 2 min walk |
| El Camino & Sunnyvale | Bus station | 3 min walk |
| El Camino & Sunnyvale-Saratoga | Bus stop | 3 min walk |
| Dumpling Depot 水饺家园 | Dumpling restaurant | 4 min walk |
| Sourdough Bread Company | Sandwich shop | 4 min walk |
| Dave's Hot Chicken | Chicken restaurant | 4 min walk |


## Reputation

4.9 average across 135 reviews.


### What people like

Nothing found


### What people do not like

Nothing found


### Press

No press story about Leon Y Cheng, M.D found yet.


### Awards

None named yet.


### Directories

Listed on 3 of the 36 directories we checked.

| Directory | Listed |
| --- | --- |
| Alignable | Not listed |
| Apple Maps | Not listed |
| BBB | Not listed |
| Birdeye | Not listed |
| Booksy | Not listed |
| Brownbook | Not listed |
| Chamber of Commerce | Not listed |
| Cylex | Not listed |
| Facebook | Not listed |
| Foursquare | Not listed |
| Fresha | Not listed |
| Groupon | Not listed |
| Healthgrades | Not listed |
| Hotfrog | Not listed |
| Houzz | Not listed |
| Manta | Not listed |
| MapQuest | Listed |
| MerchantCircle | Not listed |
| Nextdoor | Not listed |
| NPI No. | Not listed |
| Porch | Not listed |
| Psychology Today | Not listed |
| RateMDs | Not listed |
| RealSelf | Not listed |
| Sharecare | Not listed |
| Superpages | Not listed |
| Trustpilot | Not listed |
| Tupalo | Not listed |
| Vagaro | Not listed |
| Vitals | Not listed |
| WebMD | Listed |
| Wellness.com | Not listed |
| Yellowbook | Not listed |
| Yellow Pages | Not listed |
| Yelp | Listed |
| Zocdoc | Not listed |


## Recent updates from Leon Y Cheng, M.D

Leon Y Cheng, M.D hasn't posted an update here yet.


## Questions people ask


### what time does Leon Y Cheng, M.D in Sunnyvale actually open?

No answer yet


### walk in here, or is it appointment only?

No answer yet


### can I ask for numbing at Leon Y Cheng, M.D without it being weird?

No answer yet


### parking at Leon Y Cheng, M.D, where does everyone put the car?

No answer yet


### is there a way to spread the cost here

No answer yet


### anywhere cheaper than Leon Y Cheng, M.D in Sunnyvale that is still good?

No answer yet


### anything good on Old San to kill time near Leon Y Cheng, M.D?

No answer yet


### Saturdays at Leon Y Cheng, M.D, are they open?

No answer yet


### where exactly is this place?

No answer yet


### people keep recommending Leon Y Cheng, M.D, what for?

No answer yet


### are prices in Sunnyvale higher than everywhere else

No answer yet


### anyone tell me what a consult here involves

No answer yet


### Do they post anywhere?

No answer yet


### best family practice physician in Sunnyvale

No answer yet


### does this place ever have cancellations

No answer yet


### which one, Leon Y Cheng, M.D or Kimberley F Ma, D.O?

No answer yet


### medical staff here, or is it techs?

No answer yet


## What AI gets wrong about Leon Y Cheng, M.D

We ask Gemini and ChatGPT about Leon Y Cheng, M.D. These are the answers that disagree with the record.

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

No capture has disagreed with the record yet.


## The AI Score: 45 of 100

The AI Score measures how likely AI engines are to recommend a business, and how accurately. Sunnyvale family practice physicians run 24 to 53. Fair starts at 45, good at 65. Leon Y Cheng, M.D scores 45, above the Sunnyvale average of 43. The same method scores every business on the registry.

| Signal | Weight | Score | What it measures | Leon Y Cheng, M.D |
| --- | --- | --- | --- | --- |
| Retrieval grounding | 26 | 75 | 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 | 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 18 answers that recommended anyone. 4 more named nobody, which is not a loss and is not scored. |
| Reviews & response | 12 | 58 | 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 | 68 | Domain authority and editorial quality of the sources that attest to you. | Good |
| Google Business Profile | 8 | 79 | Required and recommended fields; update cadence. The listing AI pulls from first. | Good |
| Speed & mobile | 7 | 40 | Core Web Vitals at the 75th percentile, on a real phone. | Poor |
| Content freshness & schema | 5 | 81 | Crawl recency, intent alignment, valid JSON-LD, canonicals. | Good |

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


## How AI decides what to tell you about a family practice physician

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 a family practice physician 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 Leon Y Cheng, M.D 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 Leon Y Cheng, M.D |
| --- | --- | --- | --- | --- |
| Leon Y Cheng, M.D. | MedicalBusiness | #business | https://www.sutterhealth.org/find-provider/dr-leon-y-cheng-1046238316 | Subject of this page |
| Sunnyvale, California | City | #city | Nothing found | City Leon Y Cheng, M.D 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 family practice physicians in Sunnyvale, linked to the lists and towns around it.


### Lists

- Best family practice physicians in Sunnyvale: https://localairegistry.com/leaderboards/ca/sunnyvale/family-practice-physician
- Best businesses in Sunnyvale: https://localairegistry.com/leaderboards/ca/sunnyvale


### 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 Leon Y Cheng, M.D.. 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

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