Andrzej Robert Zajac, D.O.
Family Medicine Physician · Macomb, MI
Andrzej Robert Zajac, D.O. is a family medicine physician with a practice address in Macomb, Michigan, and NPI 1396725545, issued on Jan 21, 2006. Check the license (Michigan 5101012292, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Andrzej Robert Zajac
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 5101012292 MI
Self-reported in NPPES; status is on the state search - Practice location
- 46591 Romeo Plank RD, Macomb, MI 48044
- Phone
- (586) 226-6100
- Enumerated
- Jan 21, 2006
- Record last updated
- Jul 19, 2026
- Fax
- (586) 226-6101
- Medicaid ID
- 4381282 MI
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Also registered at 46591 Romeo Plank RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Alaska, M.P.T.Physical Therapist1134246804
- Bruce Benderoff, DOFamily Medicine Physician1700860632
- Earl Black, MDPediatrics Physician1881681732
- Keith Bornstein, DOFamily Medicine Physician1356325286
- Eva Cristescu, MDPediatrics Physician1811985583
- Karen Demsich, RPHPharmacist1992014880
Verify Andrzej Robert Zajac in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101012292Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% more Medicare Part D claims than the average family medicine physician in 2024
4,197 Medicare Part D claims for 416 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 21 claims were for opioids.
Most prescribed
- Atorvastatin Calcium305 claims
- Losartan Potassium220 claims
- Amlodipine Besylate187 claims
- Levothyroxine Sodium161 claims
- Simvastatin161 claims
- Metformin Hcl158 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.
Andrzej Robert Zajac among 6,013 family medicine physician records in Michigan
Andrzej Robert Zajac, 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. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 56% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2026 · 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).
15 family medicine physician records list a practice address in Macomb
They are 15 of the 594 NPPES records with a practice address in Macomb, and 6,013 family medicine physician records in Michigan.
All 6,013 in Michigan → Every provider in Macomb → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Bruce Benderoff, DOMacomb, MI 480441700860632
- Whitney Berenter, DOMacomb, MI 480441114508223
- Keith Bornstein, DOMacomb, MI 480441356325286
- Iris Daniel, MDMacomb, MI 480441205840691
- Ashley Decaluwe, DOMacomb, MI 480441477016772
- Amy Kopp, M.D.Macomb, MI 480441255595120
- Jason Ramos, MDMacomb, MI 480441558554998
- Katherine Roth, M.D.Macomb, MI 480441417143553
Common questions
What is Andrzej Robert Zajac, D.O.'s NPI number?
Andrzej Robert Zajac, D.O.'s National Provider Identifier (NPI) is 1396725545, issued on Jan 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Andrzej Robert Zajac, D.O. located?
The NPPES record lists a practice address at 46591 Romeo Plank RD, Macomb, MI, 48044. Phone: (586) 226-6100. Providers update this record themselves, so call before visiting.
How can I verify Andrzej Robert Zajac, D.O.'s license?
NPPES lists Michigan license number 5101012292, 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 Andrzej Robert Zajac, D.O. prescribe under Medicare Part D?
In 2024, Andrzej Robert Zajac, D.O. had 4,197 Medicare Part D claims for 416 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.