Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Messer

Psychiatry Physician in Duluth, MN · enumerated 2006.

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

National Provider Identifier

1689740821

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Michael Messer

Sex Male

Practice address 400 E 3rd St, Duluth, MN, 55805

Phone (218) 786-1186

Enumeration date Nov 28, 2006

Last updated in NPPES May 9, 2011

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 29381 (MN) Primary

Other identifiers

Identifier	Type	State	Issuer
732644100	Medicaid	MN	-

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 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.

What specialty is Michael Messer?

Michael Messer is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-09.