John Tanja, OTR
NPI 1235632704 · Occupational Therapist · Grand Rapids, MI
John Tanja, OTR is a Occupational Therapist provider in Grand Rapids, MI (NPI 1235632704).
Provider details
- NPI number
- 1235632704
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- OTR
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
- Occupational Therapist225X00000X
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
8 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2018-03-12
- Last updated
- 2018-03-12
Frequently asked questions
- What is John Tanja's NPI number?
- John Tanja's National Provider Identifier (NPI) is 1235632704, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Tanja's specialty?
- John Tanja is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is John Tanja located?
- John Tanja's practice location on file with NPPES is 3350 Broadmoor Avenue Se, Grand Rapids, MI 49512.
- What is John Tanja's phone number?
- The practice phone number listed in the NPPES registry for John Tanja is (616) 391-7792.
- Is John Tanja's NPI active?
- Yes — John Tanja's NPI (1235632704) is active in the NPPES registry as of the last update on 2018-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.