Mary Kosir, MD
NPI 1508803594 · Surgery Physician · Detroit, MI
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Kosir, MD is a Surgery Physician provider in Detroit, MI (NPI 1508803594).
Provider details
- NPI number
- 1508803594
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301057608 (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
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
Mailing address
Registry dates
- Enumerated
- 2006-05-31
- Last updated
- 2016-08-03
Frequently asked questions
- What is Mary Kosir's NPI number?
- Mary Kosir's National Provider Identifier (NPI) is 1508803594, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Kosir's specialty?
- Mary Kosir is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Kosir located?
- Mary Kosir's practice location on file with NPPES is 4100 John R, Detroit, MI 48201-2013.
- What is Mary Kosir's phone number?
- The practice phone number listed in the NPPES registry for Mary Kosir is (800) 527-6266.
- Does Mary Kosir accept Medicare?
- Mary Kosir is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Kosir's NPI active?
- Yes — Mary Kosir's NPI (1508803594) is active in the NPPES registry as of the last update on 2016-08-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.