Thomas J. Zyniewicz, DO
Emergency Medicine Physician · Muskegon, MI
Thomas J. Zyniewicz, DO is an emergency medicine physician with a practice address in Muskegon, Michigan, and NPI 1497792733, issued on Jun 2, 2006. Check the license (Michigan 5101010725, as entered in NPPES) on the Michigan Board of Medicine (LARA); the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Thomas J. Zyniewicz
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 5101010725 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1500 E Sherman Blvd, Muskegon, MI 49443
- Phone
- (231) 739-9341
- Enumerated
- Jun 2, 2006
- Record last updated
- Apr 3, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid IDs
- 114231946 MI
114745063 MI - Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Also registered at 1500 E Sherman Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Childress, MDEmergency Medicine Physician1568409043
- James Gilleland, DOEmergency Medicine Physician1831139716
- Martin Ruiter, NPNurse Practitioner1811935364
- Harold Rummery, DOEmergency Medicine Physician1558308031
- Joel Visser, PAPhysician Assistant1881632305
- Marc Whitaker, MDEmergency Medicine Physician1013957992
Verify Thomas J. Zyniewicz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101010725Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Thomas J. Zyniewicz among 3,083 emergency medicine physician records in Michigan
Thomas J. Zyniewicz, DO is one of 3,083 emergency medicine physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 77% newer
- In a Medicare fileNo · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2012 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
71 emergency medicine physician records list a practice address in Muskegon
They are 71 of the 2,646 NPPES records with a practice address in Muskegon, and 3,083 emergency medicine physician records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,083 in Michigan → Every provider in Muskegon → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Scott Bentz, MDMuskegon, MI 494431417069568
- David Childress, MDMuskegon, MI 494431568409043
- James Gilleland, DOMuskegon, MI 494431831139716
- Harold Rummery, DOMuskegon, MI 494431558308031
- Erik Sievertsen, MDMuskegon, MI 494431134137136
- Marc Whitaker, MDMuskegon, MI 494431013957992
- Nabiha Adams, DOMuskegon, MI 494421295319515
- Eric Applebach, MDMuskegon, MI 494421205465143
Common questions
What is Thomas J. Zyniewicz, DO's NPI number?
Thomas J. Zyniewicz, DO's National Provider Identifier (NPI) is 1497792733, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas J. Zyniewicz, DO located?
The NPPES record lists a practice address at 1500 E Sherman Blvd, Muskegon, MI, 49443. Phone: (231) 739-9341. Providers update this record themselves, so call before visiting.
How can I verify Thomas J. Zyniewicz, DO's license?
NPPES lists Michigan license number 5101010725, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.