Jennifer O'Neill
Obstetrics & Gynecology Physician · Ann Arbor, MI
Jennifer O'Neill is an obstetrics & gynecology physician with a practice address in Ann Arbor, Michigan, and NPI 1437545431, issued on Apr 7, 2015. Check the license (Michigan 5101025139, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Jennifer O'Neill
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 5101025139 MI
Self-reported in NPPES; status is on the state search - Practice location
- 4200 Whitehall Dr Ste 330, Ann Arbor, MI 48105
- Phone
- (734) 434-0477
- Enumerated
- Apr 7, 2015
- Record last updated
- Jul 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (734) 434-6240
- Medicare enrollment
- Enrolled (PECOS I20190730003344); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,776 in Michigan → Look up another NPI →
Also registered at 4200 Whitehall Dr Ste 330
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Colleen Bates, WHNP-BCWomen's Health Nurse Practitioner1326612425
- Meghan Bugosh, MDObstetrics & Gynecology Physician1760864482
- Lisa Desmond, MDObstetrics & Gynecology Physician1063919298
- Alia Shah, MDObstetrics & Gynecology Physician1609360015
- Lauren Westerfield, M.D.Obstetrics & Gynecology Physician1053723650
- Maureen Westfall, WHNPObstetrics & Gynecology Nurse Practitioner1255607032
Verify Jennifer O'Neill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101025139Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
120 Medicare Part D claims for 46 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol26 claims
- Fluconazole12 claims
- Triamcinolone Acetonide11 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.
Bills Medicare through one group practice
- Iha Health Services CorporationAnn Arbor, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer O'Neill among 1,776 obstetrics & gynecology physician records in Michigan
Jennifer O'Neill is one of 1,776 obstetrics & gynecology physician records with a practice address in Michigan. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 69% of them.
- NPI issued2015 · 69% of these records are older, 29% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2015 · median 2007 among the 1,003 with a school on file
- Record last updated2021 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
143 obstetrics & gynecology physician records list a practice address in Ann Arbor
They are 143 of the 15,616 NPPES records with a practice address in Ann Arbor, and 1,776 obstetrics & gynecology physician records in Michigan.
All 1,776 in Michigan → Every provider in Ann Arbor → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Meghan Bugosh, MDAnn Arbor, MI 481051760864482
- Lisa Desmond, MDAnn Arbor, MI 481051063919298
- Stephen Hickner, MDAnn Arbor, MI 481051386699098
- Mangaladevi Menon, M.D.Ann Arbor, MI 481051285646356
- Stephanie Menon, MDAnn Arbor, MI 481051235440348
- Alia Shah, MDAnn Arbor, MI 481051609360015
- Lauren Westerfield, M.D.Ann Arbor, MI 481051053723650
- Katherine Zdrada, M.D.Ann Arbor, MI 481051912296138
Common questions
What is Jennifer O'Neill's NPI number?
Jennifer O'Neill's National Provider Identifier (NPI) is 1437545431, issued on Apr 7, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer O'Neill located?
The NPPES record lists a practice address at 4200 Whitehall Dr Ste 330, Ann Arbor, MI, 48105. Phone: (734) 434-0477. Providers update this record themselves, so call before visiting.
How can I verify Jennifer O'Neill's license?
NPPES lists Michigan license number 5101025139, 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 Jennifer O'Neill prescribe under Medicare Part D?
In 2024, Jennifer O'Neill had 120 Medicare Part D claims for 46 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.