NPPES file of Aug 9, 2026

Joyce Maria Tang, MD

Family Medicine Physician · Martinez, CA

Joyce Maria Tang, MD is a family medicine physician with a practice address in Martinez, California, and NPI 1689903171, issued on Dec 14, 2009. Check the license (California A72663, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689903171
Name
Joyce Maria Tang
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A72663 CA
Self-reported in NPPES; status is on the state search
Practice location
2500 Alhambra Ave, Martinez, CA 94553
Phone
(925) 370-5110
Enumerated
Dec 14, 2009
Record last updated
Dec 14, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(925) 370-5142
Medicare enrollment
Enrolled (PECOS I20260317001689); may accept Medicare assignment
Medical or professional school
Stanford University School Of Medicine, 1998
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2500 Alhambra Ave

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

  1. Pyra Aarden, MDEmergency Medicine Physician1417058199
  2. Zohaib AbbasiPsychiatry Physician1013392224
  3. Lolita AdonaFamily Nurse Practitioner1821110925
  4. Namita AgarwalPediatrics Physician1467626341
  5. Edward AgyekumDentist1124196696
  6. Abid Ahmed, M.D.Internal Medicine Physician1346531001

Verify Joyce Maria Tang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A72663
    Check 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
Open 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.

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Joyce Maria Tang among 17,133 family medicine physician records in California

Joyce Maria Tang, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2009, is newer than 58% of them.

  • NPI issued2009 · 58% of these records are older, 40% newer
  • In a Medicare fileNo · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1998 · median 2005 among the 10,652 with a school on file
  • Record last updated2009 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

191 family medicine physician records list a practice address in Martinez

They are 191 of the 1,816 NPPES records with a practice address in Martinez, and 17,133 family medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 family medicine physician records with the nearest ZIP codes

  1. Melodie Armstrong, MDMartinez, CA 945531093821779
  2. Philipp Bannwart, M.D.Martinez, CA 945531194828491
  3. Fred Beck, MDMartinez, CA 945531447348891
  4. Kenneth Brooks, MDMartinez, CA 945531528009685
  5. Scott Carter, M.D.Martinez, CA 945531306820980
  6. Christopher Farnitano, MDMartinez, CA 945531770673832
  7. David Hearst, MDMartinez, CA 945531770670531
  8. Stephen Kalkstein, MDMartinez, CA 945531356438113

Common questions

What is Joyce Maria Tang, MD's NPI number?

Joyce Maria Tang, MD's National Provider Identifier (NPI) is 1689903171, issued on Dec 14, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Joyce Maria Tang, MD located?

The NPPES record lists a practice address at 2500 Alhambra Ave, Martinez, CA, 94553. Phone: (925) 370-5110. Providers update this record themselves, so call before visiting.

How can I verify Joyce Maria Tang, MD's license?

NPPES lists California license number A72663, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.