NPPES file of Aug 9, 2026

Marina Martin, MD

Internal Medicine Physician · Palo Alto, CA

Marina Martin, MD is an internal medicine physician with a practice address in Palo Alto, California, and NPI 1225113251, issued on Oct 26, 2006. Check the license (California A88440, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225113251
Name
Marina Martin
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A88440 CA
Self-reported in NPPES; status is on the state search
Practice location
211 Quarry RD FL 3, Palo Alto, CA 94304
Phone
(650) 725-5222
Enumerated
Oct 26, 2006
Record last updated
Oct 19, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(650) 721-2227
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.
Download card Updates feed

Verify Marina Martin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A88440
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

99% fewer Medicare Part D claims than the average internal medicine physician in 2024

33 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Marina Martin33
  2. Specialty average3,176

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.

The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score74.3
  2. Costout of 100 · 30%44.0
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Marina Martin among 17,696 internal medicine physician records in California

Marina Martin, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2016 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

187 internal medicine physician records list a practice address in Palo Alto

They are 187 of the 7,617 NPPES records with a practice address in Palo Alto, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Arlina Ahluwalia, MDPalo Alto, CA 943041295723559
  2. Bankole Asebiomo, MDPalo Alto, CA 943041841301884
  3. Lisa Backus, MD PHDPalo Alto, CA 943041033152285
  4. Mina Charon, MDPalo Alto, CA 943041558349266
  5. Stephen Ezeji-Okoye, M.D.Palo Alto, CA 943041366493595
  6. Susan Frayne, MD, MPHPalo Alto, CA 943041952314890
  7. James Hallenbeck, MDPalo Alto, CA 943041316982358
  8. Rhonda Hamilton, M.D.Palo Alto, CA 943041225063241

Common questions

What is Marina Martin, MD's NPI number?

Marina Martin, MD's National Provider Identifier (NPI) is 1225113251, issued on Oct 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marina Martin, MD located?

The NPPES record lists a practice address at 211 Quarry RD FL 3, Palo Alto, CA, 94304. Phone: (650) 725-5222. Providers update this record themselves, so call before visiting.

How can I verify Marina Martin, MD's license?

NPPES lists California license number A88440, 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 Marina Martin, MD prescribe under Medicare Part D?

In 2024, Marina Martin, MD had 33 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Marina Martin, MD's MIPS final score?

The 2023 MIPS final score is 76.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.

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.