Registry data as of Aug 27, 2026

Anthony Chan, M.D.

Student in an Organized Health Care Education/Training Program · Castro Valley, CA

Anthony Chan, M.D. is a student in an organized health care education/training program with a practice address in Castro Valley, California, and NPI 1285070235, issued on May 17, 2013. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1285070235
Name
Anthony Chan
Credential
M.D.
Primary taxonomy
Student in an Organized Health Care Education/Training Program 390200000X
Practice location
20101 Lake Chabot RD, Castro Valley, CA 94546
Phone
(510) 204-8168
Enumerated
May 17, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 20101 Lake Chabot RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Tania Benjamin, MDPlastic Surgery within the Head & Neck (Otolaryngology) Physician1093276131
  2. Jennifer CaseyEndocrinology, Diabetes & Metabolism Physician1750524575
  3. Mandeep Chadha, AUDAudiologist1346078086
  4. Phassarin Chansakul, MDPediatrics Physician1922413038
  5. Nalurporn Chokrungvaranon, M.D.Endocrinology, Diabetes & Metabolism Physician1922209436
  6. Huong Dang, MDFamily Medicine Physician1417390071

Verify Anthony Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

94% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024

29 Medicare Part D claims for 19 beneficiaries, against an average of 488 among the 106,422 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 13 claims were for opioids.

  1. Anthony Chan29
  2. Specialty average488

Most prescribed

  1. Oxycodone Hcl11 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.

One hospital or facility affiliation

  1. Sutter Bay Medical FoundationCastro Valley, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

37 student in an organized health care education/training program records list a Castro Valley practice address

They are 37 of the 999 NPPES records with a Castro Valley practice address, and 49,599 student in an organized health care education/training program records in California.

Other student in an organized health care education/training program records in California

  1. Sanad A'BasiFresno, CA1720915770
  2. Alexander Aabedi, MDSan Francisco, CA1245971480
  3. Andre AabediPomona, CA1891582102
  4. Natalie Aabodi, DMDPomona, CA1851085187
  5. Mati Aamed, PSY.D.Pacoima, CA1689285470
  6. Kjeld Aamodt, DDS, MSSan Francisco, CA1912250176
  7. Megan Aaronson, MD, MSCRLos Angeles, CA1386272102
  8. Manas AavulaPomona, CA1972496644
  9. Louisa AbadaOakland, CA1023502259
  10. Sharon AbadaSan Francisco, CA1003492844

Common questions

What is Anthony Chan, M.D.'s NPI number?

Anthony Chan, M.D.'s National Provider Identifier (NPI) is 1285070235, issued on May 17, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Anthony Chan, M.D. located?

The NPPES record lists a practice address at 20101 Lake Chabot RD, Castro Valley, CA, 94546. Phone: (510) 204-8168. Providers update this record themselves, so call before visiting.

How can I verify Anthony Chan, M.D.'s license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Anthony Chan, M.D. prescribe under Medicare Part D?

In 2024, Anthony Chan, M.D. had 29 Medicare Part D claims for 19 beneficiaries; the average among student in an organized health care education/training program prescribers was 488. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.