Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John R Nelson, MD

Internal Medicine Physician in Cadillac, MI · enumerated 2005.

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

National Provider Identifier

1558362475

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. John R Nelson

Credential MD

Sex Male

Practice address 400 Hobart St, Cadillac, MI, 49601

Phone (231) 876-7200

Fax (231) 876-6519

Enumeration date Aug 2, 2005

Last updated in NPPES Sep 24, 2008

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 4301072309 (MI) 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
110H310180	Other	MI	BLUE CROSS BILLING NUMBER
133381	Other	MI	PREF CHOICE BILLING NUMBE
383552631103	Other	MI	COMMUNITY CHOICE BILLING
4410114	Other	MI	MOLINA
27544	Other	MI	PRIORITY HEALTH BILLING
4410114	Medicaid	MI	-

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

Is NPI 1558362475 active?

Yes, as of the latest NPPES snapshot, NPI 1558362475 is active (record last updated 2008-09-24).

How do I verify John Nelson's NPI record?

Cross-check NPI 1558362475 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-09-24.