Sean Howard Zager, MD
Family Medicine Physician · Ann Arbor, MI
Sean Howard Zager, MD is a family medicine physician with a practice address in Ann Arbor, Michigan, and NPI 1437355898, issued on Jun 22, 2007. Check the license (Michigan 4301096477, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Sean Howard Zager
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 4301096477 MI
Self-reported in NPPES; status is on the state search - Practice location
- 4200 Whitehall Dr Ste 150, Ann Arbor, MI 48105
- Phone
- (734) 995-0308
- Enumerated
- Jun 22, 2007
- Record last updated
- Jul 7, 2022
- Fax
- (734) 995-0425
- Medicare enrollment
- Enrolled (PECOS I20101109000871); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2002
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Also registered at 4200 Whitehall Dr Ste 150
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jonathan Flynn, PA-CPhysician Assistant1053135129
- Chaz Hernandez, PA-CPhysician Assistant1356837504
- Jennifer Huldin, M.D.Occupational Medicine Physician1992716617
- Nicole KremerNurse Practitioner1043663743
- Renee Nilan, M.D.Emergency Medicine Physician1568576841
- Dale Russell, PA-CPhysician Assistant1184890519
Verify Sean Howard Zager in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301096477Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family medicine physician in 2024
471 Medicare Part D claims for 94 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Levothyroxine Sodium55 claims
- Rosuvastatin Calcium37 claims
- Amlodipine Besylate28 claims
- Atorvastatin Calcium28 claims
- Lisinopril22 claims
- Np Thyroid22 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: $600.00
1 payment: consulting fee; the largest payer was Ibsa Pharma 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Sean Howard Zager among 6,013 family medicine physician records in Michigan
Sean Howard Zager, MD 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 48% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2002 · median 2008 among the 3,493 with a school on file
- Record last updated2022 · 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).
177 family medicine physician records list a practice address in Ann Arbor
They are 177 of the 15,616 NPPES records with a practice address in Ann Arbor, and 6,013 family medicine physician records in Michigan.
All 6,013 in Michigan → Every provider in Ann Arbor → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Matthew Ajluni, DOAnn Arbor, MI 481051124072400
- Cynthia BaetzAnn Arbor, MI 481051215904016
- Renee Brayton, DOAnn Arbor, MI 481051528094976
- Louito Edje, MDAnn Arbor, MI 481051649261876
- Shannon Graley, D.O.Ann Arbor, MI 481051154393940
- Mohammed Irfan, MDAnn Arbor, MI 481051932123650
- Frank Parrinello, D.O.Canton, MI 481051548238579
- Yasmin Parvez, MDAnn Arbor, MI 481051093716953
Common questions
What is Sean Howard Zager, MD's NPI number?
Sean Howard Zager, MD's National Provider Identifier (NPI) is 1437355898, issued on Jun 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Sean Howard Zager, MD located?
The NPPES record lists a practice address at 4200 Whitehall Dr Ste 150, Ann Arbor, MI, 48105. Phone: (734) 995-0308. Providers update this record themselves, so call before visiting.
How can I verify Sean Howard Zager, MD's license?
NPPES lists Michigan license number 4301096477, 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 Sean Howard Zager, MD prescribe under Medicare Part D?
In 2024, Sean Howard Zager, MD had 471 Medicare Part D claims for 94 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.