Thomas V. Nattakom, MD
NPI 1598711475ActiveIndividual· Internal Medicine, Gastroenterology· Las Cruces, NM
Internal Medicine, Gastroenterology (MD) with Digestive Disease Consultants of Las Cruces LLC, practicing in Las Cruces, New Mexico. Their prescriptions cost Medicare Part D more than their services did: $430,296 for 1,996 claims, against $181,320 paid for services in 2024. Abbvie Inc. was the largest of 12 companies reporting payments in 2025, $1,659 in all, mostly food and beverage. Lists Christus Southern New Mexico and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1598711475 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 25, 2006 |
| Last updated in NPPES | Jul 23, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 97-136 | NM |
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 - Gastroenterology (NM) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 541 |
|---|---|
| Services billed | 3,229 across 32 procedure codes |
| Paid by Medicare | $181,320 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,996 · 3,867 30-day fills |
|---|---|
| Patients | 830 |
| Total drug cost | $430,296 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 1982 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Digestive Disease Consultants of Las Cruces LLCLas Cruces, NM · 4 clinicians
Hospital affiliations
- Christus Southern New MexicoAlamogordo, NM
- Memorial Medical CenterLas Cruces, NM
- Mimbres Valley Medical CenterDeming, NM
- Mountain View Regional Medical CenterLas Cruces, NM
- Three Crosses Regional Hospital LLCLas Cruces, NM
Industry payments (Open Payments)
- 2025$1,659 · 91 payments from 12 companies
- 2024$1,560 · 82 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $484.02 | 29 |
| Janssen Biotech, Inc. | $332.59 | 16 |
| Takeda Pharmaceuticals U.S.A., Inc. | $158.86 | 6 |
| Pfizer Inc. | $144.21 | 14 |
| Ardelyx, Inc. | $135.31 | 6 |
What the 2025 payments were for
- Food and Beverage$1,659 · 91 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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