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RENAL MEDICAL ASSOCIATES
NPI 1447359310
Internal Medicine - Nephrology in San Francisco, CA

Active since September 21, 2006
2100 WEBSTER ST STE 320, SAN FRANCISCO, CA 94115(415) 923-3456(415) 923-3121 Get Directions Write a Review

NPPES record last updated: November 30, 2023. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Renal Medical Associates NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RENAL MEDICAL ASSOCIATES (NPI 1447359310) is a healthcare organization registered as a nephrology in San Francisco, California and active in the NPI registry since September 2006. The organization lists Michael F Borah, President, as its authorized official.

NPPES Registry Identity

NPI1447359310
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameRENAL MEDICAL ASSOCIATES
Location Address2100 WEBSTER ST STE 320San Francisco, CA 94115-2377
Mailing Address2100 Webster St Ste 320San Francisco, CA 94115-2377 · (415) 923-3456 · Fax (415) 923-3121
Phone(415) 923-3456
Fax(415) 923-3121
Organization SubpartNo
Authorized OfficialMichael F BorahPresident · (415) 923-3456
Enumeration DateSeptember 21, 2006
Last NPPES UpdateNovember 30, 2023
NPPES CertifiedNovember 30, 2023
✔ NPI 1447359310 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
2100 WEBSTER ST STE 320, San Francisco, CA 94115
Open in Google Maps ↗

Other Identifiers 15

Other00A517650CA · State License
Other00A517651CA · Medicare Individual Ptan
Other00G623554CA · Medicare Individual Ptan
OtherZZZ19839ZCA · Medicare Group Ptan
Other00G623550CA · State License
Medicaid00A517650CA
Medicaid00G623551CA
Medicaid00A997520CA
Medicaid00G203560CA
Other00G203560CA · State License
Other00G203562CA · Medicare Individual Ptan
Medicaid00A521550CA
OtherA52155CA · License
Other00A521551CA · Medicare Individual Ptan
Other00A997520CA · Medicare Individual Ptan

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Renal Medical Associates is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

8

Medicare enrollment records show 8 clinicians reassign Medicare billing to Renal Medical Associates, which bills Medicare for the services they deliver. Of these, 6 practice at this address and 8 within 10 miles. They are listed nearest first.

Clinicians, nearest first (8)

Jamshid Amanzadeh, MD
Nephrology
NPI 1629170428
2100 WEBSTER ST STE 405
San Francisco, CA 94115
(415) 923-3456
✔ PECOS✔ Accepts MedicareSame address
Young Hsu, MD
Nephrology
NPI 1982163101
2100 WEBSTER ST STE 320
San Francisco, CA 94115
(415) 923-3456
✔ PECOS✔ Accepts MedicareSame address
Michael Borah, MD
Internal Medicine
NPI 1144395435
2100 WEBSTER ST. SUITE 320
San Francisco, CA 94115
(415) 923-3456
✔ PECOS✔ Accepts MedicareSame address
Sepehr Keyhani, MD
Nephrology
NPI 1952713570
2100 WEBSTER ST SUITE 320
San Francisco, CA 94115
(415) 923-3456
✔ PECOS✔ Accepts MedicareSame address
Charles Lynch, MD
Nephrology
NPI 1972684348
2100 WEBSTER ST SUITE 320
San Francisco, CA 94115
(415) 923-3456
✔ PECOS✔ Accepts MedicareSame address
John Riordan, MD
Nephrology
NPI 1619040227
2100 WEBSTER ST SUITE 320
San Francisco, CA 94115
(415) 923-3815
✔ PECOS✔ Accepts MedicareSame address
Mei Zhu Peng, M.D.
Nephrology
NPI 1124113915
1001 POTRERO AVENUE BLDG. 90, 2ND FL
San Francisco, CA 94110
(628) 206-4777
✔ PECOS✔ Accepts Medicare2.8 mi
Ilyas Iliya, MD
Nephrology
NPI 1336214634
1580 VALENCIA STREET STE 806
San Francisco, CA 94110
(415) 647-6660
✔ PECOS3.1 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Renal Medical Associates's NPI number?

The NPI number for Renal Medical Associates is 1447359310. It was assigned to this organization in the NPPES registry on September 21, 2006.

Where is Renal Medical Associates located?

Renal Medical Associates is located at 2100 Webster St Ste 320, San Francisco, CA 94115. The listed phone number is (415) 923-3456.

What is Renal Medical Associates's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Renal Medical Associates enrolled in Medicare?

Yes. Renal Medical Associates is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Renal Medical Associates?

According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians in 2 Medicare specialties reassign their Medicare billing to Renal Medical Associates. A 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 the clinician's services. The largest specialties are Nephrology (7) and Internal Medicine (1). Of these, 6 practice at this address and 8 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Renal Medical Associates was last updated on November 30, 2023. 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.