Michael Messer
NPI 1689740821 · Psychiatry Physician · Duluth, MN
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Messer is a Psychiatry Physician provider in Duluth, MN (NPI 1689740821).
Provider details
- NPI number
- 1689740821
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 29381 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-28
- Last updated
- 2011-05-09
Frequently asked questions
- What is Michael Messer's NPI number?
- Michael Messer's National Provider Identifier (NPI) is 1689740821, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Messer's specialty?
- Michael Messer is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Messer located?
- Michael Messer's practice location on file with NPPES is 400 E 3rd St, Duluth, MN 55805-1951.
- What is Michael Messer's phone number?
- The practice phone number listed in the NPPES registry for Michael Messer is (218) 786-1186.
- Does Michael Messer accept Medicare?
- Michael Messer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Messer's NPI active?
- Yes — Michael Messer's NPI (1689740821) is active in the NPPES registry as of the last update on 2011-05-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.