Vellaiappan Somasundaram, MD
NPI 1891745386ActiveIndividual· Internal Medicine· Frisco, TX
Internal Medicine (MD) with Appalachian Regional Healthcare Inc and 1 other group, practicing in Frisco, Texas. Their prescriptions cost Medicare Part D more than their services did: $1,522,999 for 27,060 claims, against $71,052 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 4 companies reporting payments in 2025, $70.49 in all, mostly food and beverage. Lists Pikeville Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1891745386 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | May 12, 2006 |
| Last updated in NPPES | May 18, 2026 |
| Certified by provider | May 18, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 35436 | KY |
| Emergency Medicine | 207P00000X | 35436 | KY |
| Internal Medicine | 207R00000X | T9601 | TX |
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 - Internal Medicine (KY); Practitioner - Family Practice (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 279 |
|---|---|
| Services billed | 1,342 across 41 procedure codes |
| Paid by Medicare | $71,052 |
Part D prescriptions in 2024
| Prescriptions (claims) | 27,060 · 40,403 30-day fills |
|---|---|
| Patients | 643 |
| Total drug cost | $1,522,999 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Family Practice |
Medical groups
- Appalachian Regional Healthcare IncMiddlesboro, KY · 318 clinicians
- Php Ins Tx PLLCIrving, TX · 17 clinicians
Hospital affiliations
- Pikeville Medical CenterPikeville, KY
- Tug Valley Arh Regional Medical CenterSouth Williamson, KY
Industry payments (Open Payments)
- 2025$70.49 · 4 payments from 4 companies
- 2024$109.72 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $23.47 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $18.24 | 1 |
| Astellas Pharma US Inc | $15.24 | 1 |
| Shield Therapeutics Inc | $13.54 | 1 |
What the 2025 payments were for
- Food and Beverage$70.49 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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