MARTIN KOSZTOWSKI M.D.
NPI 1740536853
Student in an Organized Health Care Education/Training Program in San Francisco, CA
About Martin Kosztowski M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARTIN KOSZTOWSKI M.D. (NPI 1740536853) is an individual student in an organized health care education/training program in San Francisco, California, licensed in Illinois (K232-5608-4301) and active in the NPI registry since July 2012. He is enrolled in Medicare PECOS and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2014).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Martin Kosztowski M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Martin Kosztowski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90048
- Reassigned Medicare billing, California enrollment
- 1,001 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Martin Kosztowski's NPI number?
The NPI number for Martin Kosztowski is 1740536853. It was assigned to this individual provider in the NPPES registry on July 25, 2012.
Where is Martin Kosztowski located?
Martin Kosztowski practices at Ucsf Department Of Surgery 513 Parnassus Avenue, S-321, San Francisco, CA 94143. The listed phone number is (415) 476-1239.
What is Martin Kosztowski's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is Martin Kosztowski enrolled in Medicare?
Yes. Martin Kosztowski is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Martin Kosztowski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Martin Kosztowski reassigns Medicare benefits to Cedars-Sinai Medical Center (Los Angeles, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Martin Kosztowski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Martin Kosztowski accept?
Health plans from Blue Cross and Blue Shield of Texas list Martin Kosztowski as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Martin Kosztowski was last updated on March 25, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Martin Kosztowski, M.D. · NPI 1740536853
Student in an Organized Health Care Education/Training Program provider in San Francisco, California. Individual provider, active in the CMS NPPES registry since July 25, 2012.
## Identity
- **NPI:** 1740536853 (Entity type: Individual)
- **Enumerated:** July 25, 2012
- **Primary specialty:** Student in an Organized Health Care Education/Training Program · taxonomy 390200000X
- **State license:** K232-5608-4301 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** UCSF DEPARTMENT OF SURGERY, 513 PARNASSUS AVENUE, S-321, San Francisco, CA 94143-0470
- **Phone:** (415) 476-1239
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Cedars-Sinai Medical Center (NPI 1639172372, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 2014
## Record status
- **NPPES last updated:** March 25, 2014
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Source: [NPI Profile](https://npiprofile.com/npi/1740536853) · Data from the CMS NPPES public registry.