Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

John N Campbell, M.D.

Addiction Medicine (Internal Medicine) Physician in Kentwood, MI · enumerated 2006.

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

National Provider Identifier

1417901232

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Registry record

Entity type Individual (Type 1)

Name John N Campbell

Credential M.D.

Sex Male

Practice address Kentwood, MI, 49508

Phone (616) 455-9450

Fax (616) 455-5221

Enumeration date May 19, 2006

Last updated in NPPES Aug 6, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 034105 (MI) Secondary

207RA0401X Addiction Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 4301034105 (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
1598853608	Other	-	GROUP NPI
382161547	Other	MI	TAX ID
1076881	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.

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Frequently asked questions

How do I verify John Campbell's NPI record?

Cross-check NPI 1417901232 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1417901232 active?

Yes, as of the latest NPPES snapshot, NPI 1417901232 is active (record last updated 2025-08-06).

Other providers at this practice address

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Norman Weber Family Medicine Physician · Kentwood, MI NPI 1508821539 Diane Anderson Nurse Practitioner · Kentwood, MI NPI 1548283062 Heather Jordan Physician Assistant · Kentwood, MI NPI 1770712200

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-06.