Annie Chan, MD
Ophthalmology Physician · Palo Alto, CA
Annie Chan, MD is an ophthalmology physician with a practice address in Palo Alto, California, and NPI 1346420221, issued on Nov 8, 2007. Check the license (California A96575, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Annie Chan
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A96575 CA
Self-reported in NPPES; status is on the state search - Practice location
- 795 EL Camino Real, Palo Alto, CA 94301
- Phone
- (650) 321-4121
- Enumerated
- Nov 8, 2007
- Record last updated
- Dec 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090623000143); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 795 EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Annie Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A96575Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average ophthalmology physician in 2024
87 Medicare Part D claims for 33 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Prednisolone Acetate15 claims
- Latanoprost13 claims
- Diclofenac Sodium11 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.
Industry payments in 2024: $104.02
1 payment: food and beverage; the largest payer was EyePoint Pharmaceuticals US, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 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
- Permanente Medical Group IncSanta Clara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Annie Chan among 2,899 ophthalmology physician records in California
Annie Chan, MD is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 55% of them.
- NPI issued2007 · 55% of these records are older, 33% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2005 · median 2001 among the 1,907 with a school on file
- Record last updated2021 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Palo Alto → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- James Ahn, M.D.Palo Alto, CA 943011902915028
- Susan Connolly, MDPalo Alto, CA 943011861501900
- Jocelyn Delcarmen, M.D.Palo Alto, CA 943011144322579
- Harvey Fishman, M.D.Palo Alto, CA 943011639166838
- Hyunjin Jane Kim, M.D.Palo Alto, CA 943011376765990
- Debbie Kuo, M.D.Palo Alto, CA 943011417222050
- Marc Levin, MDPalo Alto, CA 943011811123441
- Mary Ann Lloyd, MDPalo Alto, CA 943011285743153
Common questions
What is Annie Chan, MD's NPI number?
Annie Chan, MD's National Provider Identifier (NPI) is 1346420221, issued on Nov 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Annie Chan, MD located?
The NPPES record lists a practice address at 795 EL Camino Real, Palo Alto, CA, 94301. Phone: (650) 321-4121. Providers update this record themselves, so call before visiting.
How can I verify Annie Chan, MD's license?
NPPES lists California license number A96575, 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 Annie Chan, MD prescribe under Medicare Part D?
In 2024, Annie Chan, MD had 87 Medicare Part D claims for 33 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
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.