NPPES file of Aug 9, 2026

Timothy R. Oneill, DO

Family Medicine Physician · Clarkston, MI

Timothy R. Oneill, DO is a family medicine physician with a practice address in Clarkston, Michigan, and NPI 1033117890, issued on Jul 14, 2005. Check the license (Michigan TO020249, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1033117890
Name
Timothy R. Oneill
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
TO020249 MI
Self-reported in NPPES; status is on the state search
Practice location
5701 Bow Pointe Dr, Clarkston, MI 48346
Phone
(248) 625-2621
Enumerated
Jul 14, 2005
Record last updated
Feb 25, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(248) 625-2622
Medicaid ID
1033117890 MI
Medicare enrollment
Enrolled (PECOS I20061212000337); accepts Medicare assignment
Medical or professional school
Arizona College Of Osteopathic Medicine Mid Western University, 2003
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5701 Bow Pointe Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sandra AloiaGerontology Nurse Practitioner1285000869
  2. Robert Barnes, D.O.Internal Medicine Physician1316961360
  3. Susan Clark, NPPsychiatric/Mental Health Nurse Practitioner1043525025
  4. Asha Downs, D.O.Otolaryngology Physician1518076348
  5. Kathryn DuffeyPhysical Therapist1659569846
  6. Bianca Green, NPFamily Nurse Practitioner1154872190

Verify Timothy R. Oneill in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license TO020249
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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3.0 times the Medicare Part D claims of the average family medicine physician in 2024

10,752 Medicare Part D claims for 660 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 282 claims were for opioids.

  1. Timothy Oneill10,752
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium457 claims
  2. Levothyroxine Sodium431 claims
  3. Losartan Potassium381 claims
  4. Amlodipine Besylate370 claims
  5. Lisinopril280 claims
  6. Omeprazole254 claims

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.

Industry payments in 2024: $909.48

66 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Timothy Oneill$909.48
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 3 group practices

  1. Mclaren Community Based Primary Care GroupClarkston, MI
  2. Michigan Healthcare Professionals PCFarmington Hills, MI
  3. Northsport Physical Therapy And Rehabilitation P CGaylord, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Timothy R. Oneill among 6,013 family medicine physician records in Michigan

Timothy R. Oneill, DO is one of 6,013 family medicine physician records with a practice address in Michigan. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 89% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2003 · median 2008 among the 3,493 with a school on file
  • Record last updated2020 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

35 family medicine physician records list a practice address in Clarkston

They are 35 of the 1,197 NPPES records with a practice address in Clarkston, and 6,013 family medicine physician records in Michigan.

The 8 family medicine physician records with the nearest ZIP codes

  1. Daniel Bielak, D.O.Clarkston, MI 483461841222080
  2. Ricardo Cabrera, M.D.Clarkston, MI 483461801875943
  3. Jacqueline Chirco, D.O.Clarkston, MI 483461023189487
  4. Shawn Conner, MDClarkston, MI 483461568564367
  5. Fabrizio Di Noto, M.D.Clarkston, MI 483461437178720
  6. Lisa Dietz, DOClarkston, MI 483461629067541
  7. Katherine French, DOClarkston, MI 483461306952791
  8. Joseph Lajoie, D.O.Clarkston, MI 483461932179835

Common questions

What is Timothy R. Oneill, DO's NPI number?

Timothy R. Oneill, DO's National Provider Identifier (NPI) is 1033117890, issued on Jul 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Timothy R. Oneill, DO located?

The NPPES record lists a practice address at 5701 Bow Pointe Dr, Clarkston, MI, 48346. Phone: (248) 625-2621. Providers update this record themselves, so call before visiting.

How can I verify Timothy R. Oneill, DO's license?

NPPES lists Michigan license number TO020249, 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 R. Oneill, DO prescribe under Medicare Part D?

In 2024, Timothy R. Oneill, DO had 10,752 Medicare Part D claims for 660 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.