Martin Kosztowski, M.D.
Student in an Organized Health Care Education/Training Program · San Francisco, CA
Martin Kosztowski, M.D. is a student in an organized health care education/training program with a practice address in San Francisco, California, and NPI 1740536853, issued on Jul 25, 2012. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Martin Kosztowski
- Credential
- M.D.
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- License number
- K232-5608-4301 IL
Self-reported in NPPES; status is on the state search - Practice location
- Ucsf Department OF Surgery, San Francisco, CA 94143
- Phone
- (415) 476-1239
- Enumerated
- Jul 25, 2012
- Record last updated
- Mar 25, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20250826001059); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2014
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 40,652 in California → Look up another NPI →
Also registered at Ucsf Department OF Surgery
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nusaiba Baker, MD, PHDStudent in an Organized Health Care Education/Training Program1841930476
- Lucia CalthorpeSurgery Physician1164163267
- Audrey Choi, MDStudent in an Organized Health Care Education/Training Program1790084200
- Cyndi Chung, M.D. M.B.A.Plastic Surgery Physician1962897256
- Colleen Flanagan, MDSurgery Physician1740818772
- James Gardner, M.D., PH.D.Surgery Physician1215293477
Verify Martin Kosztowski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
One hospital affiliation
- Cedars-Sinai Medical CenterWest Hollywood, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Martin Kosztowski among 40,652 student in an organized health care education/training program records in California
Martin Kosztowski, M.D. is one of 40,652 student in an organized health care education/training program records with a practice address in California. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 5% of them.
- NPI issued2012 · 5% of these records are older, 93% newer
- In a Medicare fileYes · 16% of these records are
- In the CMS Doctors and Clinicians fileYes · 6% of these records are
- Graduated2014 · median 2017 among the 2,409 with a school on file
- Record last updated2014 · 26% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3,035 student in an organized health care education/training program records list a practice address in San Francisco
They are 3,035 of the 38,143 NPPES records with a practice address in San Francisco, and 40,652 student in an organized health care education/training program records in California.
All 40,652 in California → Every provider in San Francisco → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Andrew Bellinger, M.D., PH.D.San Francisco, CA 941431831327402
- Molly Burnett, MDSan Francisco, CA 941431619107638
- Sheila Chan, M.D.San Francisco, CA 941431487895793
- Fred Chen, M.D.San Francisco, CA 941431932390325
- Jeffrey Ghassemi, M.D., M.P.H.San Francisco, CA 941431972746253
- Vasantha Jotwani, M.D.San Francisco, CA 941431043448996
- Vy-Van Le, MDSan Francisco, CA 941431265661136
- Katherine Naidu, M.D.San Francisco, CA 941431265668115
Common questions
What is Martin Kosztowski, M.D.'s NPI number?
Martin Kosztowski, M.D.'s National Provider Identifier (NPI) is 1740536853, issued on Jul 25, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Martin Kosztowski, M.D. located?
The NPPES record lists a practice address at Ucsf Department OF Surgery, San Francisco, CA, 94143. Phone: (415) 476-1239. Providers update this record themselves, so call before visiting.
How can I verify Martin Kosztowski, M.D.'s license?
Search the California board that licenses this profession; the NPPES record confirms identity 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.
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.