James Lorenzen Boyer, M.D.
NPI 1447233267ActiveIndividual· Internal Medicine, Gastroenterology· New Haven, CT
Internal Medicine, Gastroenterology (M.D.) in New Haven, Connecticut, trained at Johns Hopkins University School of Medicine (class of 1962). Part D covered 31 prescriptions written in 2024, 97% of them generic. Amgen Inc. was the largest of 2 companies reporting payments in 2025, $4,589 in all, mostly consulting fees.
Overview
| NPI | 1447233267 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 25, 2005 |
| Last updated in NPPES | Nov 14, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 012702 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (CT) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 31 · 85 30-day fills |
|---|---|
| Total drug cost | $2,901 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | Johns Hopkins University School of Medicine |
|---|---|
| Graduation year | 1962 |
| Medicare specialty | Gastroenterology |
Medical group
- Yale UniversityNew Haven, CT · 2,645 clinicians
Industry payments (Open Payments)
- 2025$4,589 · 4 payments from 2 companies
- 2024$3,083 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $2,712 | 3 |
| Astrazeneca Uk Limited | $1,877 | 1 |
What the 2025 payments were for
- Consulting Fee$4,277 · 2 payments
- Food and Beverage$311.68 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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