Mark Ottmar, MD
NPI 1255377016 · Diagnostic Radiology Physician · St Joseph, MI
Mark Ottmar, MD is a Diagnostic Radiology Physician provider in St Joseph, MI (NPI 1255377016).
Provider details
- NPI number
- 1255377016
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301049003 (MI)
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
- 2006-06-21
- Last updated
- 2018-06-07
Frequently asked questions
- What is Mark Ottmar's NPI number?
- Mark Ottmar's National Provider Identifier (NPI) is 1255377016, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Ottmar's specialty?
- Mark Ottmar is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Ottmar located?
- Mark Ottmar's practice location on file with NPPES is 1234 Napier Ave, St Joseph, MI 49085.
- What is Mark Ottmar's phone number?
- The practice phone number listed in the NPPES registry for Mark Ottmar is (269) 983-8300.
- Is Mark Ottmar's NPI active?
- Yes — Mark Ottmar's NPI (1255377016) is active in the NPPES registry as of the last update on 2018-06-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.