Mark R. Versland, M.D.
NPI 1639164775ActiveIndividual· Internal Medicine, Gastroenterology· New Britain, CT
Internal Medicine, Gastroenterology (M.D.) in New Britain, Connecticut, trained at Jefferson Medical College of Thomas Jefferson University (class of 1981). Their prescriptions cost Medicare Part D more than their services did: $753,588 for 1,113 claims, against $46,970 paid for services in 2024. Abbvie Inc. was the largest of 16 companies reporting payments in 2025, $1,179 in all, mostly food and beverage.
Overview
| NPI | 1639164775 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 14, 2005 |
| Last updated in NPPES | Jan 24, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 028335 | CT |
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 (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 250 |
|---|---|
| Services billed | 421 across 29 procedure codes |
| Paid by Medicare | $46,970 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,113 · 2,459 30-day fills |
|---|---|
| Patients | 345 |
| Total drug cost | $753,588 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Jefferson Medical College of Thomas Jefferson University |
|---|---|
| Graduation year | 1981 |
| Medicare specialty | Gastroenterology |
Medical group
- Connecticut Gi PLLCWallingford, CT · 248 clinicians
Hospital affiliations
- Bristol HospitalBristol, CT
- The Hospital of Central ConnecticutNew Britain, CT
Industry payments (Open Payments)
- 2025$1,179 · 55 payments from 16 companies
- 2024$965.98 · 47 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $267.26 | 14 |
| Madrigal Pharmaceuticals | $188.71 | 4 |
| Janssen Biotech, Inc. | $143.41 | 8 |
| Takeda Pharmaceuticals U.S.A., Inc. | $106.06 | 4 |
| Genzyme Corporation | $88.77 | 4 |
What the 2025 payments were for
- Food and Beverage$1,169 · 54 payments
- Education$9.65 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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