Leonard A. Bayer, D.O.
Family Medicine Physician · Sterling Heights, MI
Leonard A. Bayer, D.O. is a family medicine physician with a practice address in Sterling Heights, Michigan, and NPI 1174549562, issued on Jul 15, 2006. Check the license (Michigan 5101006421, 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
- Leonard A. Bayer
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 5101006421 MI
Self-reported in NPPES; status is on the state search - Practice location
- 42755 Mound RD, Sterling Heights, MI 48314
- Phone
- (586) 323-0400
- Enumerated
- Jul 15, 2006
- Record last updated
- Dec 4, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (586) 323-3762
- Medicaid ID
- 186102211 MI
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Also registered at 42755 Mound RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Fadi Oska, M.D.Internal Medicine Physician1205856432
- Roxanne Ropponen, FNP-BCFamily Nurse Practitioner1679118376
Verify Leonard A. Bayer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101006421Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Leonard A. Bayer among 6,013 family medicine physician records in Michigan
Leonard A. Bayer, D.O. 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 not. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 56% newer
- In a Medicare fileNo · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2012 · 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).
147 family medicine physician records list a practice address in Sterling Heights
They are 147 of the 2,991 NPPES records with a practice address in Sterling Heights, and 6,013 family medicine physician records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 6,013 in Michigan → Every provider in Sterling Heights → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ruzica Dzebo, M.D.Sterling Heights, MI 483141770797482
- Ronald Hunt, M.D.Sterling Heights, MI 483141134103583
- David LickSterling Heights, MI 483141962478974
- Steven Margolis, MDSterling Heights, MI 483141619931268
- Christopher Milback, M.D.Sterling Heights, MI 483141700852720
- Elie Mulhem, M.D.Sterling Heights, MI 483141801862834
- Andrew Oleszkowicz, MDSterling Heights, MI 483141528008570
- David RodgersSterling Heights, MI 483141962478990
Common questions
What is Leonard A. Bayer, D.O.'s NPI number?
Leonard A. Bayer, D.O.'s National Provider Identifier (NPI) is 1174549562, issued on Jul 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leonard A. Bayer, D.O. located?
The NPPES record lists a practice address at 42755 Mound RD, Sterling Heights, MI, 48314. Phone: (586) 323-0400. Providers update this record themselves, so call before visiting.
How can I verify Leonard A. Bayer, D.O.'s license?
NPPES lists Michigan license number 5101006421, 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.