Doctor profile · Federal record

Dr. Shannon Grabosch, M.D.

Gynecologic Oncology Physician (CMS: Gynecological Oncology) · Student in an Organized Health Care Education/Training Program · Obstetrics & Gynecology Physician · Saint Louis, MO

  • NPI 1003136151
  • Accepts Medicare
  • 16 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1031 Bellevue Ave Ste 400
Saint Louis, MO 631171858
(314) 781-4772
fax (314) 645-8771

Credentials & registration

NPPES · NUCC
NPI registered
June 2010 — 16 yrs on file
Profile last updated
January 14, 2021
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207VX0201X — NUCC code
State licenses (2)
Missouri #2018006396 · Missouri #2010021063

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1003136151. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
164
Distinct HCPCS
4
Medicare allowed
$15,281
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 92 62 $88
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 33 12 $49
99214 Established patient office or other outpatient visit, 30-39 minutes 20 15 $122
99204 New patient office or other outpatient visit, 45-59 minutes 19 19 $164

In context: peer comparison

Among 9 peers in this city , average services per provider: 71. This provider delivers 2.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$199
Transactions
4
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
INTUITIVE SURGICAL, INC. 1 $129.27
GlaxoSmithKline, LLC. 2 $37.86
Merck Sharp & Dohme LLC 1 $32.07

By nature of payment

Food and Beverage
$199

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
227
Patients
66
Total drug cost
$4,139
Drug Type Claims Patients Total cost
Ondansetron Hcl Generic 39 18 $463
Duloxetine Hcl Generic 37 0 $781
Gabapentin Generic 36 13 $583
Megestrol Acetate Generic 26 0 $1,065
Oxycodone Hcl Generic 23 12 $123
Potassium Chloride Generic 23 0 $784
Lorazepam Generic 18 11 $41
Lidocaine-Prilocaine (Lidocaine/Prilocaine) Brand 14 12 $203
Ibuprofen Generic 11 0 $95

Frequently asked questions

Auto-generated from federal data
What is Dr. Shannon Grabosch's medical specialty?
Dr. Shannon Grabosch practices Gynecologic Oncology Physician in Saint Louis, MO.
Where does Dr. Shannon Grabosch practice?
Dr. Shannon Grabosch practices at 1031 Bellevue Ave Ste 400, Saint Louis, MO 631171858. Office phone: 3147814772.
What is Dr. Shannon Grabosch's NPI?
Dr. Shannon Grabosch's National Provider Identifier (NPI) is 1003136151, issued by NPPES.
Does Dr. Shannon Grabosch accept Medicare assignment?
Yes. Dr. Shannon Grabosch accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Shannon Grabosch commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.