Stephen Joseph Phelan, M.D.
NPI 1326142332ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Pawcatuck, CT
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) in Pawcatuck, Connecticut, trained at University of Colorado School of Medicine, Denver (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $3,191,075 for 6,549 claims, against $210,601 paid for services in 2024. Radius Health, Inc. was the largest of 4 companies reporting payments in 2025, $160.14 in all, mostly food and beverage.
Overview
| NPI | 1326142332 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 11, 2006 |
| Last updated in NPPES | Feb 7, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 046242 | CT |
| Internal Medicine | 207R00000X | 12629 | NH |
| Internal Medicine | 207R00000X | 242245-1 | NY |
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 - Endocrinology (CT); Practitioner - Endocrinology (RI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 457 |
|---|---|
| Services billed | 8,569 across 18 procedure codes |
| Paid by Medicare | $210,601 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,549 · 15,321 30-day fills |
|---|---|
| Patients | 710 |
| Total drug cost | $3,191,075 |
| Generic share | 41% of claims |
Education and affiliations
| Medical school | University of Colorado School of Medicine, Denver |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Northeast Medical Group IncBridgeport, CT · 1,360 clinicians
Hospital affiliations
- Lawrence & Memorial HospitalNew London, CT
- South County Hospital IncWakefield, RI
- The Miriam HospitalProvidence, RI
- Westerly HospitalWesterly, RI
- William W Backus HospitalNorwich, CT
Industry payments (Open Payments)
- 2025$160.14 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Radius Health, Inc. | $50.56 | 1 |
| Novo Nordisk Inc | $49.99 | 1 |
| Mannkind Corporation | $42.50 | 1 |
| Corcept Therapeutics | $17.09 | 1 |
What the 2025 payments were for
- Food and Beverage$117.64 · 3 payments
- Education$42.50 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records