Premal Harish Thaker, MD
NPI 1891739173ActiveIndividual· Obstetrics & Gynecology, Gynecologic Oncology· Saint Louis, MO
Obstetrics & Gynecology, Gynecologic Oncology (MD) with Washington University, practicing in Saint Louis, Missouri. Their prescriptions cost Medicare Part D more than their services did: $652,263 for 815 claims, against $340,358 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 15 companies reporting payments in 2025, $50,640 in all, mostly consulting fees. Lists Alton Memorial Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1891739173 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 16, 2006 |
| Last updated in NPPES | Apr 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology, Gynecologic Oncology Primary | 207VX0201X | 2006013538 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gynecological Oncology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 249 |
|---|---|
| Services billed | 21,796 across 91 procedure codes |
| Paid by Medicare | $340,358 |
Part D prescriptions in 2024
| Prescriptions (claims) | 815 · 994 30-day fills |
|---|---|
| Patients | 110 |
| Total drug cost | $652,263 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Gynecological Oncology |
| Telehealth | Offers telehealth |
Medical group
- Washington UniversitySaint Louis, MO · 3,029 clinicians
Hospital affiliations
- Alton Memorial HospitalAlton, IL
- Barnes Jewish HospitalSaint Louis, MO
- Barnes-Jewish St Peters HospitalSaint Peters, MO
- Barnes-Jewish West County HospitalCreve Coeur, MO
- Missouri Baptist Medical CenterSaint Louis, MO
Industry payments (Open Payments)
- 2025$50,640 · 63 payments from 15 companies
- 2024$40,003 · 45 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $18,805 | 8 |
| Incyte Corporation | $8,904 | 16 |
| Corcept Therapeutics | $6,917 | 6 |
| Astrazeneca Uk Limited | $5,480 | 1 |
| Biontech Se | $2,760 | 2 |
What the 2025 payments were for
- Consulting Fee$40,784 · 17 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$6,600 · 2 payments
- Food and Beverage$1,696 · 34 payments
- Travel and Lodging$1,560 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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