Mary T. Grimm, M.D.
NPI 1699866558ActiveIndividual· Obstetrics & Gynecology· Chesterfield, MO
Obstetrics & Gynecology (M.D.) in Chesterfield, Missouri, licensed in MO, with an NPI issued in September 2006. Their prescriptions cost Medicare Part D more than their services did: $53,423 for 622 claims, against $15,854 paid for services in 2024. Millicent US Inc reported $17.81 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1699866558 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 27, 2006 |
| Last updated in NPPES | Dec 28, 2021 |
| Certified by provider | Mar 30, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | MDR7P90 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 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 | 214 |
|---|---|
| Services billed | 350 across 15 procedure codes |
| Paid by Medicare | $15,854 |
Part D prescriptions in 2024
| Prescriptions (claims) | 622 · 1,310 30-day fills |
|---|---|
| Patients | 151 |
| Total drug cost | $53,423 |
| Generic share | 86% of claims |
Industry payments (Open Payments)
- 2025$17.81 · 1 payment from 1 company
- 2024$206.72 · 12 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Millicent US Inc | $17.81 | 1 |
What the 2025 payments were for
- Food and Beverage$17.81 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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