SETH KROSNER M.D.
NPI 1700848397
Surgery - Trauma Surgery in San Diego, CA
About Seth Krosner M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SETH KROSNER M.D. (NPI 1700848397) is an individual trauma surgery provider in San Diego, California, licensed in California (G84478) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (1987).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
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
Seth Krosner 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 Reassignments
4Medicare enrollment records show Seth Krosner reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 218 clinicians in this Medicare group
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 1,598 clinicians in this Medicare group
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 14 clinicians in this Medicare group
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 1,437 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
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 DIEGO, CA 92103
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
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 Seth Krosner's NPI number?
The NPI number for Seth Krosner is 1700848397. It was assigned to this individual provider in the NPPES registry on April 6, 2006.
Where is Seth Krosner located?
Seth Krosner practices at 4077 Fifth Ave, San Diego, CA 92103. The listed phone number is (619) 294-8111.
What is Seth Krosner's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Trauma Surgery, with taxonomy code 2086S0127X.
Is Seth Krosner enrolled in Medicare?
Yes. Seth Krosner 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 organizations bill Medicare for Seth Krosner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Seth Krosner reassigns Medicare benefits to 4 organizations: On Call Specialists Medical Group Of San Diego, Inc. (San Diego, CA), Scripps Health (San Diego, CA), Trauma Team Medical Group Incorporated (San Diego, CA) and Emergency And Acute Care Medical Corporation (San Diego, CA). Each 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 Seth Krosner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Seth Krosner was last updated on December 2, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Seth Krosner, M.D. · NPI 1700848397
Trauma Surgery physician in San Diego, California. Individual provider, active in the CMS NPPES registry since April 6, 2006.
## Identity
- **NPI:** 1700848397 (Entity type: Individual)
- **Enumerated:** April 6, 2006
- **Primary specialty:** Surgery - Trauma Surgery · taxonomy 2086S0127X
- **State license:** G84478 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4077 FIFTH AVE, San Diego, CA 92103-2105
- **Phone:** (619) 294-8111
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): On Call Specialists Medical Group Of San Diego, Inc. (NPI 1962175836, San Diego, CA); Scripps Health (NPI 1659359446, San Diego, CA); Trauma Team Medical Group Incorporated (NPI 1417907510, San Diego, CA); Emergency And Acute Care Medical Corporation (NPI 1437103942, San Diego, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 1987
## Record status
- **NPPES last updated:** December 2, 2014
- **Other identifiers:** Medicare UPIN F65357 (CA); Medicaid 00G844780 (CA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1700848397) · Data from the CMS NPPES public registry.