Sorawit Timothy Decha-Umphai, M.D.
NPI 1902191141ActiveIndividual· Internal Medicine· Saint Louis, MO
Internal Medicine (M.D.) in Saint Louis, Missouri, trained at University of Tennessee, Hsc, College of Medicine (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $1,187,780 for 12,554 claims, against $128,392 paid for services in 2024. Abbvie Inc. was the largest of 24 companies reporting payments in 2025, $2,216 in all, mostly food and beverage.
Overview
| NPI | 1902191141 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 16, 2011 |
| Last updated in NPPES | Nov 5, 2026 |
| Certified by provider | Nov 5, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2017014180 | 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 | 436 |
|---|---|
| Services billed | 1,598 across 40 procedure codes |
| Paid by Medicare | $128,392 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,554 · 29,444 30-day fills |
|---|---|
| Patients | 888 |
| Total drug cost | $1,187,780 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Tennessee, Hsc, College of Medicine |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Mercy Clinic East CommunitiesSaint Louis, MO · 571 clinicians
- Aging Well Health Care, LLCSaint Louis, MO · 238 clinicians
- Physical Therapy Spine and Sports Medicine LLCBallwin, MO · 129 clinicians
Hospital affiliations
- Barnes Jewish HospitalSaint Louis, MO
- Mercy Hospital SouthSaint Louis, MO
- Mercy Hospital St LouisSaint Louis, MO
- Missouri Baptist Medical CenterSaint Louis, MO
- St Lukes HospitalChesterfield, MO
Other facilities
- Mercy Home HealthHome health agency · Saint Louis, MO
- Mercy HospiceHospice · Saint Louis, MO
- Ssm Health Rehabilitation HospitalInpatient rehabilitation facility · Richmond Heights, MO
Industry payments (Open Payments)
- 2025$2,216 · 129 payments from 24 companies
- 2024$1,728 · 103 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $390.17 | 22 |
| Lilly USA, LLC | $275.93 | 15 |
| Amgen Inc. | $184.71 | 11 |
| Novartis Pharmaceuticals Corporation | $174.26 | 11 |
| Pfizer Inc. | $155.27 | 14 |
What the 2025 payments were for
- Food and Beverage$2,216 · 129 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