Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark G Berry, D.O.

Interventional Cardiology Physician in Duluth, MN · enumerated 2005.

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

National Provider Identifier

1336121938

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Registry record

Entity type Individual (Type 1)

Name Mark G Berry

Credential D.O.

Sex Male

Practice address 1001 E Superior St, Duluth, MN, 55802

Phone (218) 249-3057

Fax (218) 249-3091

Enumeration date Nov 18, 2005

Last updated in NPPES Apr 9, 2026

Taxonomy & licenses

207RI0011X Interventional Cardiology Physician Allopathic & Osteopathic Physicians · License 73897 (MN) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
0432666	Medicaid	IA	-

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 Mark Berry?

Mark Berry is registered in NPPES with the primary taxonomy of Interventional Cardiology 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 2026-04-09.