Jean Hansen Siedel, D.O.
Gynecologic Oncology Physician · Ann Arbor, MI
Jean Hansen Siedel, D.O. is a gynecologic oncology physician with a practice address in Ann Arbor, Michigan, and NPI 1134448657, issued on May 24, 2010. Check the license (Michigan 5101023759, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Jean Hansen Siedel
- Credential
- D.O.
- Primary taxonomy
- Gynecologic Oncology Physician 207VX0201X
- License numbers
- 5101023759 MI
R-8834 IA
Q7698 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Phone
- (734) 936-4000
- Enumerated
- May 24, 2010
- Record last updated
- Jan 21, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 358109201 (MDACC) TX
- Medicare enrollment
- Enrolled (PECOS I20180808002647); accepts Medicare assignment
- Medical or professional school
- At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2010
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gynecologic oncology physician records → All 54 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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Verify Jean Hansen Siedel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101023759Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average gynecologic oncology physician in 2024
88 Medicare Part D claims for 35 beneficiaries, against an average of 195 among the 1,475 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of 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.
2 hospitals and group practices
- Mymichigan Medical Center MidlandMidland, MI · Acute Care Hospitals4 of 5 stars
- Regents OF The University OF MichiganAnn Arbor, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Jean Hansen Siedel among 54 gynecologic oncology physician records in Michigan
Jean Hansen Siedel, D.O. is one of 54 gynecologic oncology physician records with a practice address in Michigan. 85% 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 61% of them.
- NPI issued2010 · 61% of these records are older, 31% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2010 · median 2007 among the 40 with a school on file
- Record last updated2020 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0201X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecologic Oncology Physician providers in Michigan
There are 54 gynecologic oncology physician records in Michigan.
All 54 in Michigan → Every provider in Ann Arbor → Gynecologic Oncology Physician nationwide →
The 8 gynecologic oncology physician records with the nearest ZIP codes
- Stefany Acosta-Torres, MDAnn Arbor, MI 481091063832194
- Sarah Bell, MDAnn Arbor, MI 481091366972218
- Melissa Brackmann, M.D.Ann Arbor, MI 481091467898544
- Aimee Rolston, MD, MSAnn Arbor, MI 481091346622974
- Shitanshu Uppal, MDAnn Arbor, MI 481091801949540
- Barry Rosen, MDDearborn, MI 481241902285752
- Jill Gadzinski, M.D.Royal Oak, MI 480731427376854
- Morgan GrunerRoyal Oak, MI 480731750878575
Common questions
What is Jean Hansen Siedel, D.O.'s NPI number?
Jean Hansen Siedel, D.O.'s National Provider Identifier (NPI) is 1134448657, issued on May 24, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Jean Hansen Siedel, D.O. located?
The NPPES record lists a practice address at 1500 E Medical Center Dr, Ann Arbor, MI, 48109. Phone: (734) 936-4000. Providers update this record themselves, so call before visiting.
How can I verify Jean Hansen Siedel, D.O.'s license?
NPPES lists Michigan license number 5101023759, 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 Jean Hansen Siedel, D.O. prescribe under Medicare Part D?
In 2024, Jean Hansen Siedel, D.O. had 88 Medicare Part D claims for 35 beneficiaries; the average among gynecologic oncology physician prescribers was 195. 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.