DR. DAVID BRYNN KARCH M.D.
NPI 1861401382
Emergency Medicine in San Francisco, CA
About Dr. David Brynn Karch M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID BRYNN KARCH M.D. (NPI 1861401382) is an individual emergency medicine provider in San Francisco, California, licensed in California (G169269) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and maintains a secondary practice location in Issaquah.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. David Brynn Karch M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show David Karch reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94117
- Reassigned Medicare billing, California enrollment
- 2,323 clinicians in this Medicare group
San Pablo, CA 94806
- Reassigned Medicare billing, California enrollment
- 530 clinicians in this Medicare group
Sonoma, CA 95476
- Reassigned Medicare billing, California enrollment
- 112 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94117 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 94117
SAN FRANCISCO, CA 94117
SAN FRANCISCO, CA 94117
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 David Karch's NPI number?
The NPI number for David Karch is 1861401382. It was assigned to this individual provider in the NPPES registry on August 5, 2006.
Where is David Karch located?
David Karch practices at 450 Stanyan St, San Francisco, CA 94117. The listed phone number is (415) 668-1000.
What is David Karch's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is David Karch enrolled in Medicare?
Yes. David Karch is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for David Karch's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Karch reassigns Medicare benefits to 3 organizations: Cep America - California (San Francisco, CA), Contra Costa County (San Pablo, CA) and Sonoma Valley Emergency Physicians Medical Group, Inc (Sonoma, 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 David Karch'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 David Karch was last updated on March 28, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. David Brynn Karch, M.D. · NPI 1861401382
Emergency Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since August 5, 2006.
## Identity
- **NPI:** 1861401382 (Entity type: Individual)
- **Enumerated:** August 5, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** G169269 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 450 STANYAN ST, San Francisco, CA 94117-1019
- **Phone:** (415) 668-1000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Cep America - California (NPI 1023063542, San Francisco, CA); Contra Costa County (NPI 1417036484, San Pablo, CA); Sonoma Valley Emergency Physicians Medical Group, Inc (NPI 1710164629, Sonoma, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 28, 2022
- **Other identifiers:** Medicaid 8194623 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1861401382) · Data from the CMS NPPES public registry.