Danielle Suzanne Grunloh-Gumpenberger, MD
NPI 1285164053ActiveIndividual· Obstetrics & Gynecology· O Fallon, MO
Obstetrics & Gynecology (MD) in O Fallon, Missouri, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $9,403 for 131 claims, against $3,603 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. was the largest of 7 companies reporting payments in 2025, $235.01 in all, mostly food and beverage.
Overview
| NPI | 1285164053 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 14, 2017 |
| Last updated in NPPES | May 8, 2024 |
| Certified by provider | May 8, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 2017018655 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Obstetrics/Gynecology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 33 |
|---|---|
| Services billed | 49 across 11 procedure codes |
| Paid by Medicare | $3,603 |
Part D prescriptions in 2024
| Prescriptions (claims) | 131 · 262 30-day fills |
|---|---|
| Patients | 44 |
| Total drug cost | $9,403 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Mercy Clinic East CommunitiesSaint Louis, MO · 571 clinicians
Hospital affiliation
- Mercy Hospital St LouisSaint Louis, MO
Industry payments (Open Payments)
- 2025$235.01 · 12 payments from 7 companies
- 2024$110.08 · 6 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $70.31 | 3 |
| Astellas Pharma US Inc | $55.62 | 3 |
| Optumhealth Care Solutions, LLC | $35.62 | 2 |
| Hologic Sales and Service, LLC | $23.40 | 1 |
| Evofem Biosciences, Inc. | $19.18 | 1 |
What the 2025 payments were for
- Food and Beverage$235.01 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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