Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

James C. Darsie, MD

Diagnostic Radiology Physician in Janesville, WI · enumerated 2011.

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

National Provider Identifier

1992090674

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Registry record

Entity type Individual (Type 1)

Name James C. Darsie

Credential MD

Sex Male

Practice address 1000 Mineral Point Ave, Janesville, WI, 53548

Phone (608) 756-6741

Fax (608) 756-6376

Enumeration date Jun 10, 2011

Last updated in NPPES Sep 12, 2018

Taxonomy & licenses

2085N0700X Neuroradiology Physician Allopathic & Osteopathic Physicians · License 65602 (WI) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 65602-20 (WI) 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
1992090674	Other	WI	WI BCBS
K400491316	Other	WI	WI MEDICARE
1992090674	Medicaid	WI	-

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 specialty is James Darsie?

James Darsie 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 2018-09-12.