IndividualActive
Nicholas Messamer, MD
NPI 1649264276 · Family Medicine Physician · Oskaloosa, IA
Nicholas Messamer, MD is a Family Medicine Physician provider in Oskaloosa, IA (NPI 1649264276).
Provider details
- NPI number
- 1649264276
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 27198 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
410 N 12th St
Oskaloosa, IA 52577-2495
Phone: (641) 672-3360
Fax: (641) 672-3366
Approximate (ZIP-level) locationGet directions
Mailing address
410 N 12th St
Oskaloosa, IA 52577-2495
Registry dates
- Enumerated
- 2005-09-09
- Last updated
- 2012-12-05
Frequently asked questions
- What is Nicholas Messamer's NPI number?
- Nicholas Messamer's National Provider Identifier (NPI) is 1649264276, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Messamer's specialty?
- Nicholas Messamer is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nicholas Messamer located?
- Nicholas Messamer's practice location on file with NPPES is 410 N 12th St, Oskaloosa, IA 52577-2495.
- What is Nicholas Messamer's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Messamer is (641) 672-3360.
- Is Nicholas Messamer's NPI active?
- Yes — Nicholas Messamer's NPI (1649264276) is active in the NPPES registry as of the last update on 2012-12-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.