Shawn Michael Gao, M.D.
NPI 1740424704ActiveIndividual· Internal Medicine· Saint Louis, MO
Internal Medicine (M.D.) with Clinical Medical Services LLC, practicing in Saint Louis, Missouri. Their prescriptions cost Medicare Part D more than their services did: $3,363,010 for 55,323 claims, against $158,246 paid for services in 2024. Otsuka America Pharmaceutical, Inc. was the largest of 3 companies reporting payments in 2025, $226.53 in all, mostly food and beverage. Lists Blessing Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1740424704 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 21, 2009 |
| Last updated in NPPES | Jun 23, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2014027747 | 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 - Internal Medicine (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 601 |
|---|---|
| Services billed | 2,856 across 15 procedure codes |
| Paid by Medicare | $158,246 |
Part D prescriptions in 2024
| Prescriptions (claims) | 55,323 · 56,428 30-day fills |
|---|---|
| Patients | 1,213 |
| Total drug cost | $3,363,010 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Clinical Medical Services LLCSaint Louis, MO · 6 clinicians
Hospital affiliations
- Blessing HospitalQuincy, IL
- Hannibal Regional HospitalHannibal, MO
- Ssm Health Saint Louis University HospitalSaint Louis, MO
Other facilities
- Alpine Home Health Agency, IncHome health agency · Ballwin, MO
- Bjc HospiceHospice · Saint Louis, MO
- Breeze Hospice of MissouriHospice · Ballwin, MO
- Bristol Hospice - St LouisHospice · Saint Louis, MO
- Solace Hospice Care, LLCHospice · O'Fallon, MO
- Bentwood Nursing & RehabNursing home · Florissant, MO
- Lansdowne VillageNursing home · Saint Louis, MO
- Monarch Springs Wellness & RehabilitationNursing home · University City, MO
- Pine Grove ManorNursing home · Saint Louis, MO
- St Johns PlaceNursing home · Saint Louis, MO
Industry payments (Open Payments)
- 2025$226.53 · 4 payments from 3 companies
- 2024$538.79 · 14 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $109.85 | 1 |
| Teva Pharmaceuticals USA, Inc. | $93.07 | 2 |
| Smith+nephew, Inc. | $23.61 | 1 |
What the 2025 payments were for
- Food and Beverage$226.53 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 1,092 internal medicine physicians in Saint Louis · All internal medicine physicians in Missouri