Timothy John Oja, DO
Psychiatry Physician · Portage, MI
Timothy John Oja, DO is a psychiatry physician with a practice address in Portage, Michigan, and NPI 1134787070, issued on Jun 5, 2019. Check the license (Michigan 5101028170, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Timothy John Oja
- Credential
- DO
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- 5101028170 MI
5151014007 MI
73368 MN
Self-reported in NPPES; status is on the state search - Practice location
- 7895 Currier Dr, Portage, MI 49002
- Phone
- (269) 910-7327
- Enumerated
- Jun 5, 2019
- Record last updated
- Jul 11, 2024
- Medicare enrollment
- Enrolled (PECOS I20240729000928); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,729 in Michigan → Look up another NPI →
Also registered at 7895 Currier Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Angel AugustusBehavior Technician1760318018
- Sayuz Bade ShresthaBehavior Technician1871465559
- Chloe BeattyBehavior Technician1063302065
- Allie Bierling, BCBA, LBABehavior Analyst1700340262
- James BlakleyBehavior Technician1841173721
- Claire BlauerBehavior Technician1588495485
Verify Timothy John Oja in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101028170Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average psychiatry physician in 2024
21 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
One hospital affiliation
- Pine Rest Christian Mental Health ServicesGrand Rapids, MI · Psychiatric
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Timothy John Oja among 1,729 psychiatry physician records in Michigan
Timothy John Oja, DO is one of 1,729 psychiatry physician records with a practice address in Michigan. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 77% of them.
- NPI issued2019 · 77% of these records are older, 19% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2019 · median 2005 among the 828 with a school on file
- Record last updated2024 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Michigan
There are 1,729 psychiatry physician records in Michigan.
All 1,729 in Michigan → Every provider in Portage → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Eric Klomparens, MDPortage, MI 490021881217289
- Niaz Mohammad, MDPortage, MI 490021437352689
- Mauli Verma, M.D.Portage, MI 490021134322308
- Gopal Bedi, MDKalamazoo, MI 490011316976608
- Melanie ClarkKalamazoo, MI 490011356732465
- Robert Anderson, DOKalamazoo, MI 490061073183513
- Kevin Kunzer, MDKalamazoo, MI 490061639330624
- Sonia Motin, MDKalamazoo, MI 490061053672493
Common questions
What is Timothy John Oja, DO's NPI number?
Timothy John Oja, DO's National Provider Identifier (NPI) is 1134787070, issued on Jun 5, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Timothy John Oja, DO located?
The NPPES record lists a practice address at 7895 Currier Dr, Portage, MI, 49002. Phone: (269) 910-7327. Providers update this record themselves, so call before visiting.
How can I verify Timothy John Oja, DO's license?
NPPES lists Michigan license number 5101028170, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Timothy John Oja, DO prescribe under Medicare Part D?
In 2024, Timothy John Oja, DO had 21 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.