Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jack J Van Geffen, M.D.

Nuclear Radiology Physician in Annapolis, MD · enumerated 2005.

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

National Provider Identifier

1487656245

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Registry record

Entity type Individual (Type 1)

Name Dr. Jack J Van Geffen

Credential M.D.

Sex Male

Practice address 2002 Medical Pkwy, Suite 235, Annapolis, MD, 21401

Phone (410) 266-2770

Fax (410) 841-6251

Enumeration date Aug 11, 2005

Last updated in NPPES Nov 16, 2010

Taxonomy & licenses

2085N0904X Nuclear Radiology Physician Allopathic & Osteopathic Physicians · License D0019967 (MD) 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
10690008	Other	MD	BCBS
1487656245	Other	MD	MEDICARE SHIPLEYS IMAGING
300031317	Other	MD	TRAVELERS RR MEDICARE
A14	Other	MD	AAD PG COUNTY
414894ZED1	Other	MD	PTAN DC BOWIE
8317071	Other	MD	AETNA PPO
155951600	Medicaid	MD	-
2622593	Other	MD	AETNA HMO/POS
494M	Other	MD	AAD SHIPLEYS
JG95	Other	MD	AAD AA COUNTY

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

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.

What specialty is Jack Van Geffen?

Jack Van Geffen is registered in NPPES with the primary taxonomy of Nuclear Radiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-16.