Doctor profile · Federal record

Dr. Jean Siedel, D.O.

Gynecologic Oncology Physician (CMS: Gynecological Oncology) · Obstetrics & Gynecology Physician · Obstetrics & Gynecology Physician · Obstetrics & Gynecology Physician · Ann Arbor, MI

  • NPI 1134448657
  • Accepts Medicare
  • 16 yrs in practice
  • Licensed in 3 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1500 E Medical Center Dr
Ann Arbor, MI 481095000
(734) 936-4000
Mailing address
3621 S State St
Ann Arbor, MI 481081633

Credentials & registration

NPPES · NUCC
NPI registered
May 2010 — 16 yrs on file
Profile last updated
January 21, 2020
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207VX0201X — NUCC code
State licenses (3)
Michigan #5101023759 · Texas #Q7698 · Iowa #R-8834
Medicaid
TX #358109201 (MDACC)

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134448657. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
158
Distinct HCPCS
4
Medicare allowed
$20,121
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 78 51 $141
99214 Established patient office or other outpatient visit, 30-39 minutes 41 31 $96
99205 New patient office or other outpatient visit, 60-74 minutes 20 20 $181
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 19 16 $81

In context: peer comparison

Among 4 peers in Ann Arbor Gynecologic Oncology Physician, average services per provider: 34. This provider delivers 4.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
37
Patients
0
Total drug cost
$110,105
Drug Type Claims Patients Total cost
Letrozole Generic 14 0 $1,138
Lynparza (Olaparib) Brand 12 0 $102,746
Eliquis (Apixaban) Brand 11 0 $6,222

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Jean Siedel's medical specialty?
Dr. Jean Siedel practices Gynecologic Oncology Physician in Ann Arbor, MI.
Where does Dr. Jean Siedel practice?
Dr. Jean Siedel practices at 1500 E Medical Center Dr, Ann Arbor, MI 481095000. Office phone: 7349364000.
What is Dr. Jean Siedel's NPI?
Dr. Jean Siedel's National Provider Identifier (NPI) is 1134448657, issued by NPPES.
Does Dr. Jean Siedel accept Medicare assignment?
Yes. Dr. Jean Siedel accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jean Siedel commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.