BARBARA A. STUMPF MD
NPI 1851479646
Internal Medicine - Critical Care Medicine in Oakland, CA
About Barbara A. Stumpf Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BARBARA A. STUMPF MD (NPI 1851479646) is an individual critical care medicine provider in Oakland, California, licensed in California (G50633) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Barbara A. Stumpf Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Barbara Stumpf reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Richmond, CA 94801
- Reassigned Medicare billing, California enrollment
- 20,078 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 94611 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 Barbara Stumpf's NPI number?
The NPI number for Barbara Stumpf is 1851479646. It was assigned to this individual provider in the NPPES registry on November 1, 2006.
Where is Barbara Stumpf located?
Barbara Stumpf practices at 275 W Macarthur, Oakland, CA 94611. The listed phone number is (510) 752-1000.
What is Barbara Stumpf's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Barbara Stumpf enrolled in Medicare?
Yes. Barbara Stumpf is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Barbara Stumpf's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Barbara Stumpf reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, 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 Barbara Stumpf'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 Barbara Stumpf was last updated on September 19, 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.
# Barbara A. Stumpf, MD · NPI 1851479646
Critical Care Medicine physician in Oakland, California. Individual provider, active in the CMS NPPES registry since November 1, 2006.
## Identity
- **NPI:** 1851479646 (Entity type: Individual)
- **Enumerated:** November 1, 2006
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** G50633 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 275 W MACARTHUR, Oakland, CA 94611-5641
- **Phone:** (510) 752-1000
## 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:** Permanente Medical Group Inc (NPI 1235226531, Richmond, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 19, 2014
- **Other identifiers:** Medicare UPIN F15832; Medicaid 00G506330 (CA); Medicare ID-Type Unspecified 00G506330
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Source: [NPI Profile](https://npiprofile.com/npi/1851479646) · Data from the CMS NPPES public registry.