John M. Elser, MD
NPI 1982677894ActiveIndividual· Internal Medicine· Naugatuck, CT
Internal Medicine (MD) in Naugatuck, Connecticut, trained at University of Connecticut School of Medicine (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $786,046 for 8,646 claims, against $58,441 paid for services in 2024. Vanda Pharmaceuticals Inc. was the largest of 6 companies reporting payments in 2025, $175.57 in all, mostly food and beverage.
Overview
| NPI | 1982677894 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 10, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 026476 | 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 - Internal Medicine (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 162 |
|---|---|
| Services billed | 820 across 36 procedure codes |
| Paid by Medicare | $58,441 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,646 · 14,885 30-day fills |
|---|---|
| Patients | 428 |
| Total drug cost | $786,046 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Connecticut School of Medicine |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Prospect CT Medical Foundation IncManchester, CT · 282 clinicians
Hospital affiliations
- Griffin HospitalDerby, CT
- Saint Mary's HospitalWaterbury, CT
- Waterbury HospitalWaterbury, CT
Other facilities
- Elara CaringHome health agency · Rocky Hill, CT
- Hartford Healthcare at HomeHome health agency · East Hartford, CT
- Beacon Brook Center for Health & RehabilitationNursing home · Naugatuck, CT
- Complete Care at GlendaleNursing home · Naugatuck, CT
Industry payments (Open Payments)
- 2025$175.57 · 6 payments from 6 companies
- 2024$159.05 · 7 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vanda Pharmaceuticals Inc. | $39.28 | 1 |
| Novo Nordisk Inc | $31.11 | 1 |
| Vertex Pharmaceuticals Incorporated | $30.47 | 1 |
| Astellas Pharma US Inc | $29.49 | 1 |
| Exact Sciences Corporation | $25.24 | 1 |
What the 2025 payments were for
- Food and Beverage$175.57 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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