REBECCA TANENBAUM MD
NPI 1225610462
Ophthalmology in San Francisco, CA
About Rebecca Tanenbaum Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
REBECCA TANENBAUM MD (NPI 1225610462) is an individual ophthalmology provider in San Francisco, California, licensed in California (A201444) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Rebecca Tanenbaum Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Rebecca Tanenbaum reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94107
- Reassigned Medicare billing, California enrollment
- 1,573 clinicians in this Medicare group
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 842 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 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 94143 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
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 4
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 Rebecca Tanenbaum's NPI number?
The NPI number for Rebecca Tanenbaum is 1225610462. It was assigned to this individual provider in the NPPES registry on April 27, 2021.
Where is Rebecca Tanenbaum located?
Rebecca Tanenbaum practices at 490 Illinois St Fl 5, San Francisco, CA 94143. The listed phone number is (415) 353-2020.
What is Rebecca Tanenbaum's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Rebecca Tanenbaum enrolled in Medicare?
Yes. Rebecca Tanenbaum is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Rebecca Tanenbaum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rebecca Tanenbaum reassigns Medicare benefits to 5 organizations: City & County Of San Francisco (San Francisco, CA), University Of California Sfgh Medical Group (San Francisco, CA), Regents Of The University Of California (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (San Francisco, 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 Rebecca Tanenbaum'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 Rebecca Tanenbaum was last updated on July 17, 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.
# Rebecca Tanenbaum, MD · NPI 1225610462
Ophthalmology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since April 27, 2021.
## Identity
- **NPI:** 1225610462 (Entity type: Individual)
- **Enumerated:** April 27, 2021
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** A201444 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 490 ILLINOIS ST FL 5, San Francisco, CA 94143-2510
- **Phone:** (415) 353-2020
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): City & County Of San Francisco (NPI 1013879139, San Francisco, CA); University Of California Sfgh Medical Group (NPI 1174598296, San Francisco, CA); Regents Of The University Of California (NPI 1235322348, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 17, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1225610462) · Data from the CMS NPPES public registry.