Erik Messamore, M.D.
NPI 1366552606 · Psychiatry Physician · Mason, OH
Erik Messamore, M.D. is a Psychiatry Physician provider in Mason, OH (NPI 1366552606).
Provider details
- NPI number
- 1366552606
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD21197 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-08-30
- Last updated
- 2014-01-24
Frequently asked questions
- What is Erik Messamore's NPI number?
- Erik Messamore's National Provider Identifier (NPI) is 1366552606, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erik Messamore's specialty?
- Erik Messamore is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Erik Messamore located?
- Erik Messamore's practice location on file with NPPES is 4075 Old Western Row Rd, Mason, OH 45040-3104.
- What is Erik Messamore's phone number?
- The practice phone number listed in the NPPES registry for Erik Messamore is (513) 536-0603.
- Is Erik Messamore's NPI active?
- Yes — Erik Messamore's NPI (1366552606) is active in the NPPES registry as of the last update on 2014-01-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.