Michael T. Owczarzak, M.D.
Family Medicine Physician · Flint, MI
Michael T. Owczarzak, M.D. is a family medicine physician with a practice address in Flint, Michigan, and NPI 1659371979, issued on Jul 28, 2005. Check the license (Michigan 4301068046, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Michael T. Owczarzak
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 4301068046 MI
Self-reported in NPPES; status is on the state search - Practice location
- 5142 Miller RD, Flint, MI 48507
- Phone
- (810) 733-3660
- Enumerated
- Jul 28, 2005
- Record last updated
- Aug 26, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (810) 720-4777
- Medicaid ID
- 4536958 MI
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Also registered at 5142 Miller RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kenneth Onuoha, D.OFamily Medicine Physician1902114424
- John Stoker, D.O.Family Medicine Physician1245274869
- Isam Tahboub, R.PH., M.S.Pharmacist1679731509
Verify Michael T. Owczarzak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301068046Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average family medicine physician in 2024
507 Medicare Part D claims for 134 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 41 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen31 claims
- Albuterol Sulfate Hfa19 claims
- Levothyroxine Sodium17 claims
- Atorvastatin Calcium15 claims
- Gabapentin15 claims
- Prednisone14 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: $4,043.37
206 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Michael T. Owczarzak among 6,013 family medicine physician records in Michigan
Michael T. Owczarzak, M.D. 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 fileNo · 58% of these records are
- Record last updated2016 · 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).
76 family medicine physician records list a practice address in Flint
They are 76 of the 6,073 NPPES records with a practice address in Flint, and 6,013 family medicine physician records in Michigan.
All 6,013 in Michigan → Every provider in Flint → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Douglas Benton, DOFlint, MI 485071730281619
- Ronald Coriasso, DOFlint, MI 485071518069319
- Dale Hanson, MDFlint, MI 485071346342086
- Linda Norrell, MDFlint, MI 485071063514727
- Kenneth Onuoha, D.OFlint, MI 485071902114424
- Jose Paez Gonzalez, MDFlint, MI 485071497706410
- Terry Reznick, D.O.Flint, MI 485071295874451
- Bhagwan Sayal, MDFlint, MI 485071881796555
Common questions
What is Michael T. Owczarzak, M.D.'s NPI number?
Michael T. Owczarzak, M.D.'s National Provider Identifier (NPI) is 1659371979, issued on Jul 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Michael T. Owczarzak, M.D. located?
The NPPES record lists a practice address at 5142 Miller RD, Flint, MI, 48507. Phone: (810) 733-3660. Providers update this record themselves, so call before visiting.
How can I verify Michael T. Owczarzak, M.D.'s license?
NPPES lists Michigan license number 4301068046, 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 Michael T. Owczarzak, M.D. prescribe under Medicare Part D?
In 2024, Michael T. Owczarzak, M.D. had 507 Medicare Part D claims for 134 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.