RUYAN RAHNAMA MD
NPI 1740643766
Pediatrics - Pediatric Hematology-Oncology in San Francisco, CA
About Ruyan Rahnama Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RUYAN RAHNAMA MD (NPI 1740643766) is an individual pediatric hematology-oncology provider in San Francisco, California, licensed in California (A196256) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ruyan Rahnama Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Ruyan Rahnama 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 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 94143
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
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 Ruyan Rahnama's NPI number?
The NPI number for Ruyan Rahnama is 1740643766. It was assigned to this individual provider in the NPPES registry on March 29, 2016. The provider is also known as Ruyan Rahnama-Hazaveh.
Where is Ruyan Rahnama located?
Ruyan Rahnama practices at 1825 4th St, San Francisco, CA 94143. The listed phone number is (415) 476-9181.
What is Ruyan Rahnama's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.
Is Ruyan Rahnama enrolled in Medicare?
Yes. Ruyan Rahnama is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Ruyan Rahnama's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ruyan Rahnama reassigns Medicare benefits to 3 organizations: 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 Ruyan Rahnama'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 Ruyan Rahnama was last updated on August 21, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Ruyan Rahnama, MD · NPI 1740643766
Pediatric Hematology-Oncology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since March 29, 2016.
## Identity
- **NPI:** 1740643766 (Entity type: Individual)
- **Enumerated:** March 29, 2016
- **Primary specialty:** Pediatrics - Pediatric Hematology-Oncology · taxonomy 2080P0207X
- **State license:** A196256 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1825 4TH ST, San Francisco, CA 94143-2350
- **Phone:** (415) 476-9181
## 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): 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:** August 21, 2024
---
Source: [NPI Profile](https://npiprofile.com/npi/1740643766) · Data from the CMS NPPES public registry.