NPPES file of Aug 9, 2026

Michael Stacey, M.D.

Family Medicine Physician · Union City, CA

Michael Stacey, M.D. is a family medicine physician with a practice address in Union City, California, and NPI 1336120344, issued on Nov 7, 2005. Check the license (California A101385, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1336120344
Name
Michael Stacey
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A101385 CA
Self-reported in NPPES; status is on the state search
Practice location
33255 9TH St, Union City, CA 94587
Phone
(510) 471-5888
Enumerated
Nov 7, 2005
Record last updated
Apr 13, 2026
Medicare enrollment
Enrolled (PECOS I20080414000488); accepts Medicare assignment
Medical or professional school
Temple University School Of Medicine, 2001
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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8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →

Also registered at 33255 9TH St

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

  1. Veronica Acevedo, PAPhysician Assistant1174519060
  2. Alfredo AlvaradoCommunity Health Worker1104336429
  3. Madhumita Banerjee, ASWClinical Social Worker1164556023
  4. Bennie Brown, MDObstetrics & Gynecology Physician1750379509
  5. Martha Cline, NPNurse Practitioner1174511836
  6. Mary Dicou, FNP-CFamily Nurse Practitioner1134763238

Verify Michael Stacey in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A101385    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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Bills Medicare through one group practice

  1. Tiburcio Vasquez Health Center, Inc.Hayward, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael Stacey among 17,133 family medicine physician records in California

Michael Stacey, M.D. 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. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 94% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2001 · median 2005 among the 10,652 with a school on file
  • Record last updated2026 · 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).

19 family medicine physician records list a practice address in Union City

They are 19 of the 1,006 NPPES records with a practice address in Union City, and 17,133 family medicine physician records in California.

All 17,133 in California → Every provider in Union City → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Antonina Bondyasheva, M.D.Union City, CA 945871194982462
  2. Rudolph Chang, D.O.Union City, CA 945871376835595
  3. Matthew Eisley, M.D.Union City, CA 945871689810483
  4. Lynda Kay, M.D.Union City, CA 945871740320183
  5. Kawalpreet Manku, M.D.Union City, CA 945871851406466
  6. Abraham Mohmand, M.D.Union City, CA 945871982995494
  7. Diana Mokaya, M.D.Union City, CA 945871023458528
  8. Son Lam Nguyen, D.O.Union City, CA 945871093851768

Common questions

What is Michael Stacey, M.D.'s NPI number?

Michael Stacey, M.D.'s National Provider Identifier (NPI) is 1336120344, issued on Nov 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Michael Stacey, M.D. located?

The NPPES record lists a practice address at 33255 9TH St, Union City, CA, 94587. Phone: (510) 471-5888. Providers update this record themselves, so call before visiting.

How can I verify Michael Stacey, M.D.'s license?

NPPES lists California license number A101385, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.