Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kathryn Grumbach, MD

Diagnostic Radiology Physician in Fairfax, VA · enumerated 2006.

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

National Provider Identifier

1255365441

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Registry record

Entity type Individual (Type 1)

Name Kathryn Grumbach

Credential MD

Sex Female

Practice address 2722 Merrilee Dr, Suite 230, Fairfax, VA, 22031

Phone (703) 698-4483

Fax (703) 573-0880

Enumeration date Jul 11, 2006

Last updated in NPPES Jan 27, 2020

Taxonomy & licenses

2085R0204X Vascular & Interventional Radiology Physician Allopathic & Osteopathic Physicians · License 0101059272 (VA) Secondary

2085U0001X Diagnostic Ultrasound Physician Allopathic & Osteopathic Physicians · License 0101059272 (VA) Secondary

2085B0100X Body Imaging Physician Allopathic & Osteopathic Physicians · License 0101059272 (VA) Secondary

2085N0700X Neuroradiology Physician Allopathic & Osteopathic Physicians · License 0101059272 (VA) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License D0039899 (MD) Secondary

2085N0904X Nuclear Radiology Physician Allopathic & Osteopathic Physicians · License 0101059272 (VA) Secondary

2085P0229X Pediatric Radiology Physician Allopathic & Osteopathic Physicians · License 0101059272 (VA) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 0101059272 (VA) 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
2270221	Other	VA	AETNA
010125792	Medicaid	VA	-
5224259	Other	VA	AETNA HMO
0049	Other	VA	CAREFIRST BCBS
7200928000	Medicaid	WV	-

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

Where does Kathryn Grumbach practice?

The practice location on file with NPPES is in Fairfax, VA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Kathryn Grumbach?

The National Provider Identifier (NPI) for Kathryn Grumbach is 1255365441, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-27.