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

Mr. Clifford Arthur Chapin, MD

Internal Medicine Physician in Cloquet, MN · enumerated 2005.

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

National Provider Identifier

1891776019

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Registry record

Entity type Individual (Type 1)

Name Mr. Clifford Arthur Chapin

Credential MD

Sex Male

Practice address Cloquet, MN, 55720

Phone (218) 879-4641

Fax (218) 878-7086

Enumeration date Nov 7, 2005

Last updated in NPPES Apr 24, 2017

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 42643 (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
AA37351	Other	-	HARVARD PILGRIM
01Y0072420VH03	Other	-	ANTHEM
421750814	Other	NH	TAX ID
785935	Other	VT	MVP
1009726	Other	VT	VTW
30204411	Medicaid	NH	-
68117	Other	VT	VT BLUE
26568	Other	NH	CIGNA
5070	Other	HI	TRICARE
S01Y007242NH02	Other	NH	NH

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 NPI 1891776019 active?

Yes, as of the latest NPPES snapshot, NPI 1891776019 is active (record last updated 2017-04-24).

How do I verify Clifford Chapin's NPI record?

Cross-check NPI 1891776019 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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John Baga Internal Medicine Physician · Cloquet, MN NPI 1770577033 Charles Kendall Family Medicine Physician · Cloquet, MN NPI 1558358507 Megan Undeberg Pharmacist · Cloquet, MN NPI 1932197522 William Haug Sports Medicine (Family Medicine) Physician · Cloquet, MN NPI 1922084284 Wei Lin Hematology & Oncology Physician · Cloquet, MN NPI 1386621654 Valerie Burgett Family Nurse Practitioner · Cloquet, MN NPI 1821077538 Paul Vollmar Anesthesiology Physician · Cloquet, MN NPI 1194773671 Stacy Colich Registered Dietitian · Cloquet, MN NPI 1760433437

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-24.