KAREN WEINBAUM MD
NPI 1861842809
Family Medicine in San Francisco, CA
About Karen Weinbaum Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN WEINBAUM MD (NPI 1861842809) is an individual family medicine provider in San Francisco, California, licensed in California (A150760) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Martinez, and is a graduate of University Of Wisconsin School Of Medicine (2016).
NPPES Registry Identity
Specialties & Licenses 5
Secondary Practice Location 1
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
Karen Weinbaum Md 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 Karen Weinbaum reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94103
- Reassigned Medicare billing, California enrollment
- 1,573 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 94103 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 18
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94103
SAN FRANCISCO, CA 94103
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 Karen Weinbaum's NPI number?
The NPI number for Karen Weinbaum is 1861842809. It was assigned to this individual provider in the NPPES registry on June 21, 2016.
Where is Karen Weinbaum located?
Karen Weinbaum practices at 1171 Mission St, San Francisco, CA 94103. The listed phone number is (628) 754-9616.
What is Karen Weinbaum's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Karen Weinbaum enrolled in Medicare?
Yes. Karen Weinbaum 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 Karen Weinbaum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Weinbaum reassigns Medicare benefits to City & County Of San Francisco (San Francisco, 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 Karen Weinbaum'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 Karen Weinbaum was last updated on July 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.
# Karen Weinbaum, MD · NPI 1861842809
Family Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since June 21, 2016.
## Identity
- **NPI:** 1861842809 (Entity type: Individual)
- **Enumerated:** June 21, 2016
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A150760 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1171 MISSION ST, San Francisco, CA 94103-1519
- **Phone:** (628) 754-9616
## 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:** City & County Of San Francisco (NPI 1053351916, San Francisco, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Wisconsin School Of Medicine, class of 2016
## Record status
- **NPPES last updated:** July 28, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1861842809) · Data from the CMS NPPES public registry.