Mark Taylor, MD
NPI 1790766525ActiveIndividual· Internal Medicine, Gastroenterology· Hamden, CT
Internal Medicine, Gastroenterology (MD) in Hamden, Connecticut, trained at Tufts University School of Medicine (class of 1981). Their prescriptions cost Medicare Part D more than their services did: $248,520 for 1,351 claims, against $57,554 paid for services in 2024. Abbvie Inc. was the largest of 15 companies reporting payments in 2025, $1,805 in all, mostly food and beverage.
Overview
| NPI | 1790766525 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 9, 2005 |
| Last updated in NPPES | May 28, 2021 |
| Certified by provider | May 28, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 029611 | 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 | 259 |
|---|---|
| Services billed | 1,002 across 24 procedure codes |
| Paid by Medicare | $57,554 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,351 · 2,919 30-day fills |
|---|---|
| Patients | 451 |
| Total drug cost | $248,520 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1981 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Hhc Physician Services PLLCHamden, CT · 132 clinicians
Hospital affiliations
- Bridgeport HospitalBridgeport, CT
- Yale-New Haven HospitalNew Haven, CT
Industry payments (Open Payments)
- 2025$1,805 · 79 payments from 15 companies
- 2024$1,181 · 58 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $356.99 | 17 |
| Takeda Pharmaceuticals U.S.A., Inc. | $297.65 | 15 |
| Ardelyx, Inc. | $252.53 | 8 |
| Janssen Biotech, Inc. | $226.00 | 4 |
| Madrigal Pharmaceuticals | $186.05 | 11 |
What the 2025 payments were for
- Food and Beverage$1,616 · 77 payments
- Education$188.99 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 21 gastroenterologists in Hamden · All gastroenterologists in Connecticut