Timothy Oja, DO
NPI 1134787070 · Psychiatry Physician · Portage, MI
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Oja, DO is a Psychiatry Physician provider in Portage, MI (NPI 1134787070).
Provider details
- NPI number
- 1134787070
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 5101028170 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 300 68th St SeGrand Rapids, MI 49548-6927Phone: (616) 456-0842Fax: (616) 559-5864
- 200 1st St SwRochester, MN 55905-0001Phone: (507) 284-2511
Registry dates
- Enumerated
- 2019-06-05
- Last updated
- 2024-07-11
- Certified
- 2024-07-11
Frequently asked questions
- What is Timothy Oja's NPI number?
- Timothy Oja's National Provider Identifier (NPI) is 1134787070, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Oja's specialty?
- Timothy Oja is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Oja located?
- Timothy Oja's practice location on file with NPPES is 7895 Currier Dr, Portage, MI 49002-4314.
- What is Timothy Oja's phone number?
- The practice phone number listed in the NPPES registry for Timothy Oja is (269) 910-7327.
- Does Timothy Oja accept Medicare?
- Timothy Oja is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Oja's NPI active?
- Yes — Timothy Oja's NPI (1134787070) is active in the NPPES registry as of the last update on 2024-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.