Mark Willinger, O.D.
NPI 1558386953 · Optometrist · Dayton, OH
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Willinger, O.D. is a Optometrist provider in Dayton, OH (NPI 1558386953).
Provider details
- NPI number
- 1558386953
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 176855 (OH)
Specialties & taxonomies
Eye and Vision Services Providers
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
- 2006-07-13
- Last updated
- 2011-10-04
Frequently asked questions
- What is Mark Willinger's NPI number?
- Mark Willinger's National Provider Identifier (NPI) is 1558386953, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Willinger's specialty?
- Mark Willinger is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Mark Willinger located?
- Mark Willinger's practice location on file with NPPES is 5135 N Dixie Dr, Dayton, OH 45414-3944.
- What is Mark Willinger's phone number?
- The practice phone number listed in the NPPES registry for Mark Willinger is (937) 277-9991.
- Does Mark Willinger accept Medicare?
- Mark Willinger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Willinger's NPI active?
- Yes — Mark Willinger's NPI (1558386953) is active in the NPPES registry as of the last update on 2011-10-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.