Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Potomac Nephrology, Inc.

Q: What is the NPI number for Potomac Nephrology, Inc.?

The NPI for Potomac Nephrology, Inc. is 1245242528, a Type 2 (organization) record in the CMS NPPES registry.

Nephrology Physician in Germantown, MD · enumerated 2006 · authorized official Farzad Assar, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1245242528

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Registry record

Entity type Organization (Type 2)

Legal business name Potomac Nephrology, Inc.

Practice address 1 Executive Park Ct, Germantown, MD, 20874

Phone (301) 528-3580

Fax (301) 528-3589

Enumeration date Aug 13, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D40201 (MD) Secondary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License D40201 (MD) Primary

Authorized official

Name Farzad Assar

Title President

Phone (301) 528-3580

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Potomac Nephrology, Inc.?

The NPI for Potomac Nephrology, Inc. is 1245242528, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Potomac Nephrology, Inc.?

NPPES lists Farzad Assar (President) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.