Lucy Yingxin Zhang, M.D.
Cornea and External Diseases Specialist Physician · Greenbrae, CA
Lucy Yingxin Zhang, M.D. is a cornea and external diseases specialist physician with a practice address in Greenbrae, California, and NPI 1326304809, issued on Apr 9, 2012. Check the license (California A148929, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lucy Yingxin Zhang
- Credential
- M.D.
- Primary taxonomy
- Cornea and External Diseases Specialist Physician 207WX0120X
- License number
- A148929 CA
Self-reported in NPPES; status is on the state search - Practice location
- 900 S Eliseo Dr Ste 102, Greenbrae, CA 94904
- Phone
- (415) 461-8200
- Enumerated
- Apr 9, 2012
- Record last updated
- Sep 18, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (415) 461-4627
- Medicare enrollment
- Enrolled (PECOS I20170830000117); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cornea and external diseases specialist physician records → All 54 in California → Look up another NPI →
Also registered at 900 S Eliseo Dr Ste 102
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Louisa Lu, MDOphthalmology Physician1285261289
Verify Lucy Yingxin Zhang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A148929Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average cornea and external diseases specialist physician in 2024
847 Medicare Part D claims for 259 beneficiaries, against an average of 1,263 among the 330 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Latanoprost307 claims
- Timolol Maleate112 claims
- Dorzolamide-Timolol65 claims
- Neomycin-Polymyxin-Dexameth47 claims
- Brimonidine Tartrate41 claims
- Doxycycline Monohydrate32 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $568.44
26 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 284 providers of this specialty with any payment received $3,109.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Robert R Anderson MD IncGreenbrae, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lucy Yingxin Zhang among 54 cornea and external diseases specialist physician records in California
Lucy Yingxin Zhang, M.D. is one of 54 cornea and external diseases specialist physician records with a practice address in California. 96% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 44% of them.
- NPI issued2012 · 44% of these records are older, 52% newer
- In a Medicare fileYes · 96% of these records are
- In the CMS Doctors and Clinicians fileYes · 85% of these records are
- Graduated2012 · median 2010 among the 46 with a school on file
- Record last updated2020 · 24% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0120X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cornea and External Diseases Specialist Physician providers in California
There are 54 cornea and external diseases specialist physician records in California.
All 54 in California → Every provider in Greenbrae → Cornea and External Diseases Specialist Physician nationwide →
The 8 cornea and external diseases specialist physician records with the nearest ZIP codes
- Shannon McCabe, M.D.Walnut Creek, CA 945981407210362
- Enoch Nam, MDWalnut Creek, CA 945981578799037
- Michael Saidel, MDSonoma, CA 954761184780330
- Mustafa Safi, MDEureka, CA 955011518325455
- Charles Lin, MDStanford, CA 943051780818161
- Edward Manche, MDStanford, CA 943051992863443
- Bethlehem Mekonnen, MDStanford, CA 943051306208087
- David Myung, MDStanford, CA 943051942575568
Common questions
What is Lucy Yingxin Zhang, M.D.'s NPI number?
Lucy Yingxin Zhang, M.D.'s National Provider Identifier (NPI) is 1326304809, issued on Apr 9, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Lucy Yingxin Zhang, M.D. located?
The NPPES record lists a practice address at 900 S Eliseo Dr Ste 102, Greenbrae, CA, 94904. Phone: (415) 461-8200. Providers update this record themselves, so call before visiting.
How can I verify Lucy Yingxin Zhang, M.D.'s license?
NPPES lists California license number A148929, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Lucy Yingxin Zhang, M.D. prescribe under Medicare Part D?
In 2024, Lucy Yingxin Zhang, M.D. had 847 Medicare Part D claims for 259 beneficiaries; the average among cornea and external diseases specialist physician prescribers was 1,263. Part D covers Medicare prescriptions only.
What is Lucy Yingxin Zhang, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.