Tonya E.L. Hall, M.D.
NPI 1104813724ActiveIndividual· Internal Medicine, Gastroenterology· Norwich, CT
Internal Medicine, Gastroenterology (M.D.) in Norwich, Connecticut, trained at Pennsylvania State University College of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $405,490 for 1,689 claims, against $117,260 paid for services in 2024. Phathom Pharmaceuticals, Inc. was the largest of 15 companies reporting payments in 2025, $1,695 in all, mostly food and beverage.
Overview
| NPI | 1104813724 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 29, 2005 |
| Last updated in NPPES | Aug 15, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 041717 | CT |
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 - Gastroenterology (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 262 |
|---|---|
| Services billed | 4,643 across 37 procedure codes |
| Paid by Medicare | $117,260 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,689 · 3,096 30-day fills |
|---|---|
| Patients | 489 |
| Total drug cost | $405,490 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | Pennsylvania State University College of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Connecticut Gi PLLCWallingford, CT · 248 clinicians
Hospital affiliation
- William W Backus HospitalNorwich, CT
Industry payments (Open Payments)
- 2025$1,695 · 65 payments from 15 companies
- 2024$1,511 · 75 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $370.82 | 17 |
| Abbvie Inc. | $326.37 | 17 |
| Janssen Biotech, Inc. | $248.43 | 6 |
| Takeda Pharmaceuticals U.S.A., Inc. | $158.70 | 6 |
| Madrigal Pharmaceuticals | $152.72 | 3 |
What the 2025 payments were for
- Food and Beverage$1,695 · 65 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Norwich
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All Internal Medicine, Gastroenterology providers in Connecticut →