Mary Fleming Ackenbom, MD
Obstetrics & Gynecology Physician · Ann Arbor, MI
Mary Fleming Ackenbom, MD is an obstetrics & gynecology physician with a practice address in Ann Arbor, Michigan, and NPI 1245559848, issued on May 21, 2010. Check the license (Michigan 4301514645, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Mary Fleming Ackenbom
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 4301514645 MI
MD451279 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Phone
- (734) 936-5000
- Enumerated
- May 21, 2010
- Record last updated
- Jan 30, 2026
- Medicare enrollment
- Enrolled (PECOS I20170804002187); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,776 in Michigan → Look up another NPI →
Also registered at 1500 E Medical Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rajani Aatre, M.S., M.SC.Genetic Counselor (M.S.)1962122457
- Anjelica Abate, MDDiagnostic Radiology Physician1841819216
- Nicole Abbott, CRNACertified Registered Nurse Anesthetist1790329860
- Ahmed Abdel-Latif, M.D.Interventional Cardiology Physician1518181239
Verify Mary Fleming Ackenbom in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301514645Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
482 Medicare Part D claims for 180 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol101 claims
- Myrbetriq100 claims
- Gemtesa35 claims
- Methenamine Hippurate32 claims
- Mirabegron Er31 claims
- Clobetasol Propionate28 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University OF Pittsburgh PhysiciansPittsburgh, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Fleming Ackenbom among 1,776 obstetrics & gynecology physician records in Michigan
Mary Fleming Ackenbom, MD 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 2010, is newer than 57% of them.
- NPI issued2010 · 57% of these records are older, 41% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2010 · median 2007 among the 1,003 with a school on file
- Record last updated2026 · 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
- Sawsan As-Sanie, MDAnn Arbor, MI 481091073606455
- Anita Avery, MDAnn Arbor, MI 481091346293693
- Vanessa Dalton, MDAnn Arbor, MI 481091386737591
- Jill Davies, MDAnn Arbor, MI 481091629171566
- Hope Haefner, MDAnn Arbor, MI 481091962595124
- Maya Hammoud, MDAnn Arbor, MI 481091225121486
- Richard Lieberman, MDAnn Arbor, MI 481091437242591
- Robert Long, MDAnn Arbor, MI 481091942207097
Common questions
What is Mary Fleming Ackenbom, MD's NPI number?
Mary Fleming Ackenbom, MD's National Provider Identifier (NPI) is 1245559848, issued on May 21, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Mary Fleming Ackenbom, MD located?
The NPPES record lists a practice address at 1500 E Medical Center Dr, Ann Arbor, MI, 48109. Phone: (734) 936-5000. Providers update this record themselves, so call before visiting.
How can I verify Mary Fleming Ackenbom, MD's license?
NPPES lists Michigan license number 4301514645, 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 Mary Fleming Ackenbom, MD prescribe under Medicare Part D?
In 2024, Mary Fleming Ackenbom, MD had 482 Medicare Part D claims for 180 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Mary Fleming Ackenbom, MD's MIPS final score?
The 2023 MIPS final score is 77.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.