NPPES file of Aug 9, 2026

Matthew John Eisley, M.D.

Family Medicine Physician · Union City, CA

Matthew John Eisley, M.D. is a family medicine physician with a practice address in Union City, California, and NPI 1689810483, issued on Dec 29, 2008. Check the license (California A125561, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689810483
Name
Matthew John Eisley
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A125561 CA
Self-reported in NPPES; status is on the state search
Practice location
3553 Whipple RD, Union City, CA 94587
Phone
(510) 454-1000
Enumerated
Dec 29, 2008
Record last updated
Dec 27, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(724) 223-3353
Medicare enrollment
Enrolled (PECOS I20131114001234); accepts Medicare assignment
Medical or professional school
Drexel University College Of Medicine, 2007
Telehealth
Offers telehealth (CMS)
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 3553 Whipple RD

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

  1. Jaishree Acharya, M.D.Internal Medicine Physician1053334920
  2. Marie Agleham, MDAdult Medicine Physician1649298209
  3. Muhammad Aleem, M.D.Internal Medicine Physician1952480006
  4. Eleanor Anderson-Williams, M.D.Internal Medicine Physician1164576815
  5. Kristina Austin, M.D.Ophthalmology Physician1417007238
  6. Vijaya Basawaprasad, M.D.Internal Medicine Physician1588736326

Verify Matthew John Eisley in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A125561    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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41% more Medicare Part D claims than the average family medicine physician in 2024

5,001 Medicare Part D claims for 577 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 286 claims were for opioids.

  1. Matthew Eisley5,001
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium394 claims
  2. Losartan Potassium210 claims
  3. Amlodipine Besylate207 claims
  4. Lisinopril142 claims
  5. Hydrocodone-Acetaminophen131 claims
  6. Levothyroxine Sodium118 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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncRichmond, CA

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

Matthew John Eisley among 17,133 family medicine physician records in California

Matthew John Eisley, 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 2008, is newer than 53% of them.

  • NPI issued2008 · 53% of these records are older, 42% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2007 · median 2005 among the 10,652 with a school on file
  • Record last updated2021 · 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. Lynda Kay, M.D.Union City, CA 945871740320183
  4. Kawalpreet Manku, M.D.Union City, CA 945871851406466
  5. Abraham Mohmand, M.D.Union City, CA 945871982995494
  6. Diana Mokaya, M.D.Union City, CA 945871023458528
  7. Son Lam Nguyen, D.O.Union City, CA 945871093851768
  8. Tam Nguyen, M.D.Union City, CA 945871093929697

Common questions

What is Matthew John Eisley, M.D.'s NPI number?

Matthew John Eisley, M.D.'s National Provider Identifier (NPI) is 1689810483, issued on Dec 29, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Matthew John Eisley, M.D. located?

The NPPES record lists a practice address at 3553 Whipple RD, Union City, CA, 94587. Phone: (510) 454-1000. Providers update this record themselves, so call before visiting.

How can I verify Matthew John Eisley, M.D.'s license?

NPPES lists California license number A125561, 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 Matthew John Eisley, M.D. prescribe under Medicare Part D?

In 2024, Matthew John Eisley, M.D. had 5,001 Medicare Part D claims for 577 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.

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.