Stephen Kosiara, OTR
NPI 1801872411 · Occupational Therapist · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Occupational Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Kosiara, OTR is a Occupational Therapist provider in Grand Rapids, MI (NPI 1801872411).
Provider details
- NPI number
- 1801872411
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- OTR
- Sex
- Male
- Sole proprietor
- No
- License
- 5201004133 (MI)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
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
- 2005-12-16
- Last updated
- 2018-05-04
Frequently asked questions
- What is Stephen Kosiara's NPI number?
- Stephen Kosiara's National Provider Identifier (NPI) is 1801872411, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Kosiara's specialty?
- Stephen Kosiara is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Stephen Kosiara located?
- Stephen Kosiara's practice location on file with NPPES is 1111 Leffingwell Ave Ne, Grand Rapids, MI 49525-6406.
- What is Stephen Kosiara's phone number?
- The practice phone number listed in the NPPES registry for Stephen Kosiara is (616) 459-7101.
- Does Stephen Kosiara accept Medicare?
- Stephen Kosiara is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Kosiara's NPI active?
- Yes — Stephen Kosiara's NPI (1801872411) is active in the NPPES registry as of the last update on 2018-05-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.