NPPES file of Aug 9, 2026

Marta V. Kosinski, M.D.

Pediatrics Physician · San Francisco, CA

Marta V. Kosinski, M.D. is a pediatrics physician with a practice address in San Francisco, California, and NPI 1346276649, issued on Jun 25, 2006. Check the license (California G75516, 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
1346276649
Name
Marta V. Kosinski
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
License number
G75516 CA
Self-reported in NPPES; status is on the state search
Practice location
2330 Post St, San Francisco, CA 94115
Phone
(415) 885-7478
Enumerated
Jun 25, 2006
Record last updated
Jul 30, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(415) 885-3790
Medicaid ID
00G755160 CA
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 2330 Post St

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

  1. Molly AdlerAudiologist1033461793
  2. Payal Anand, AU.D.Audiologist-Hearing Aid Fitter1437294360
  3. Jane Anderson, M.D.Pediatrics Physician1861420630
  4. Rebecca Bingea, AU.D.Audiologist1578501631
  5. Amie Blanco, M.S.Genetic Counselor (M.S.)1083692354
  6. Julianne Blythe, PA-CPhysician Assistant1912058017

Verify Marta V. Kosinski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G75516
    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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Industry payments in 2024: $27.14

1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marta Kosinski$27.14
  2. Specialty average$842.05

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Marta V. Kosinski among 9,272 pediatrics physician records in California

Marta V. Kosinski, M.D. is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 56% newer
  • In a Medicare fileYes · 31% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2008 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

514 pediatrics physician records list a practice address in San Francisco

They are 514 of the 38,143 NPPES records with a practice address in San Francisco, and 9,272 pediatrics physician records in California.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Jane Anderson, M.D.San Francisco, CA 941151861420630
  2. David Buchholz, MDSan Francisco, CA 941151487738191
  3. Jennifer Cohen, MDSan Francisco, CA 941151114029105
  4. William Degoff, M.D.San Francisco, CA 941151720027295
  5. Gianna Frazee, MDSan Francisco, CA 941151104839778
  6. Bella Nudel, M.D.San Francisco, CA 941151598763138
  7. Alison Reed, M.D.San Francisco, CA 941151871681072
  8. Noel Rosales, MDSan Francisco, CA 941151881618171

Common questions

What is Marta V. Kosinski, M.D.'s NPI number?

Marta V. Kosinski, M.D.'s National Provider Identifier (NPI) is 1346276649, issued on Jun 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marta V. Kosinski, M.D. located?

The NPPES record lists a practice address at 2330 Post St, San Francisco, CA, 94115. Phone: (415) 885-7478. Providers update this record themselves, so call before visiting.

How can I verify Marta V. Kosinski, M.D.'s license?

NPPES lists California license number G75516, 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.

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.