PHILIP PAUERSTEIN
NPI 1437680923
Pediatrics - Pediatric Hematology-Oncology in San Francisco, CA
About Philip Pauerstein NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PHILIP PAUERSTEIN (NPI 1437680923) is an individual pediatric hematology-oncology provider in San Francisco, California, licensed in California (A161141) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Philip Pauerstein is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Philip Pauerstein reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 637 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 1,159 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.
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 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
SAN FRANCISCO, CA 94158
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 Philip Pauerstein's NPI number?
The NPI number for Philip Pauerstein is 1437680923. It was assigned to this individual provider in the NPPES registry on March 25, 2017.
Where is Philip Pauerstein located?
Philip Pauerstein practices at 550 16th St, San Francisco, CA 94158. The listed phone number is (415) 476-2188.
What is Philip Pauerstein's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.
Is Philip Pauerstein enrolled in Medicare?
Yes. Philip Pauerstein is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Philip Pauerstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Philip Pauerstein reassigns Medicare benefits to 4 organizations: University Of California Sfgh Medical Group (San Francisco, CA), Ucsf Pediatrics Associates (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 Philip Pauerstein'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 Philip Pauerstein was last updated on July 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Philip Pauerstein · NPI 1437680923
Pediatric Hematology-Oncology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since March 25, 2017.
## Identity
- **NPI:** 1437680923 (Entity type: Individual)
- **Enumerated:** March 25, 2017
- **Primary specialty:** Pediatrics - Pediatric Hematology-Oncology · taxonomy 2080P0207X
- **State license:** A161141 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 550 16TH ST, San Francisco, CA 94158-2604
- **Phone:** (415) 476-2188
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): University Of California Sfgh Medical Group (NPI 1356696215, San Francisco, CA); Ucsf Pediatrics Associates (NPI 1376614016, 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 11, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1437680923) · Data from the CMS NPPES public registry.