Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James R Custer, MD

Diagnostic Radiology Physician in Mankato, MN · enumerated 2006.

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

National Provider Identifier

1497734446

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Registry record

Entity type Individual (Type 1)

Name James R Custer

Credential MD

Sex Male

Practice address 1230 E Main Street, Mankato Clinic at Main Street, Mankato, MN, 56002

Phone (507) 625-1811

Enumeration date Jan 10, 2006

Last updated in NPPES Aug 15, 2011

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 18142 (MN) 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
300049064	Other	-	RR MEDICARE
90910	Other	IA	BCBS
3M374CU	Other	MN	BCBS
410849339 56001 C025	Other	-	CHAMPUS
928747	Other	IA	MEDICAID
232272200	Medicaid	MN	-
764330	Other	MN	AMERICAS PPO
1600689	Other	MN	MEDICA
NA2951014708	Other	MN	PREFERRED ONE
115336	Other	MN	UCARE
HP24199	Other	MN	HEALTH PARTNERS

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 James Custer?

James Custer 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 2011-08-15.