Registry data as of Aug 27, 2026

Jennifer Lin, MD

Internal Medicine Physician · San Mateo, CA

Jennifer Lin, MD is an internal medicine physician with a practice address in San Mateo, California, and NPI 1336342708, issued on Jun 6, 2007. Check the license on the Medical Board of California; 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
1336342708
Name
Jennifer Lin
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
Practice location
222 W 39TH Ave, San Mateo, CA 94403
Phone
(650) 573-2385
Enumerated
Jun 6, 2007
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 222 W 39TH Ave

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

  1. Jesse Adams, M.D.Student in an Organized Health Care Education/Training Program1407143399
  2. Stacey Adelson, NPNurse Practitioner1104951797
  3. Brita Almog, MDPediatrics Physician1033402847
  4. John Anderson, MDObstetrics & Gynecology Physician1013082429
  5. Shea AndersonClinical Social Worker1689964991
  6. Zohra Ansari, MSWClinical Social Worker1326462904

Verify Jennifer Lin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of CaliforniaCheck 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.

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

56% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,235 Medicare Part D claims for 32 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. 18 claims were for opioids.

  1. Jennifer Lin1,235
  2. Specialty average2,785

Most prescribed

  1. Atorvastatin Calcium103 claims
  2. Biktarvy93 claims
  3. Amlodipine Besylate42 claims
  4. Genvoya42 claims
  5. Gabapentin41 claims
  6. Omeprazole41 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. County OF San MateoSan Mateo, 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.

45 internal medicine physician records list a San Mateo practice address

They are 45 of the 3,909 NPPES records with a San Mateo practice address, and 20,403 internal medicine physician records in California.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Jennifer Lin, MD's NPI number?

Jennifer Lin, MD's National Provider Identifier (NPI) is 1336342708, issued on Jun 6, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Lin, MD located?

The NPPES record lists a practice address at 222 W 39TH Ave, San Mateo, CA, 94403. Phone: (650) 573-2385. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Lin, MD's license?

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 Jennifer Lin, MD prescribe under Medicare Part D?

In 2024, Jennifer Lin, MD had 1,235 Medicare Part D claims for 32 beneficiaries; the average among internal medicine physician prescribers was 2,785. 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.