Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Russell C Fritz, M.D.

Diagnostic Radiology Physician in Greenbrae, CA · enumerated 2005.

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

National Provider Identifier

1679550032

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Registry record

Entity type Individual (Type 1)

Name Dr. Russell C Fritz

Credential M.D.

Sex Male

Practice address 250 Bon Air Rd, Greenbrae, CA, 94904

Phone (415) 884-3415

Fax (415) 883-0877

Enumeration date Dec 28, 2005

Last updated in NPPES May 13, 2020

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 4953 (AK) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 31740 (CO) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 36103737 (IL) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 56 (MT) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 9663 (NV) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License MA71752 (NJ) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 214699-1 (NY) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 35-06-3882-F (OH) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 21396 (OK) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License J5764 (TX) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License MD00032517 (WA) Secondary

2085U0001X Diagnostic Ultrasound Physician Allopathic & Osteopathic Physicians · License 28798 (AZ) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License G60870 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
00G60870	Medicaid	OK	-
300035761	Other	CA	RAILROAD MEDICARE
00G608700	Medicaid	CA	-
1317403	Medicaid	CO	-
867666	Medicaid	AZ	-
8563403	Medicaid	NJ	-
8169633	Medicaid	WA	-
300121784	Other	CA	RAILROAD MEDICARE

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.

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Frequently asked questions

What specialty is Russell Fritz?

Russell Fritz is registered in NPPES with the primary taxonomy of Diagnostic Radiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-13.