David Lawrence Maslak, MD
NPI 1477916179ActiveIndividual· Internal Medicine· Derby, CT
Internal Medicine (MD) with Nuvance Health Medical Practice CT Inc and 6 other groups, practicing in Derby, Connecticut. In 2024 Medicare paid $95,404 for 593 patients, and Part D covered 277 of their prescriptions, 83% of them generic. Lists Charlotte Hungerford Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1477916179 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 30, 2016 |
| Last updated in NPPES | Nov 27, 2024 |
| Certified by provider | Nov 27, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 62720 | CT |
| Hospitalist | 208M00000X | 323344 | NY |
| Hospitalist | 208M00000X | 62720 | 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); Practitioner - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 593 |
|---|---|
| Services billed | 1,027 across 20 procedure codes |
| Paid by Medicare | $95,404 |
Part D prescriptions in 2024
| Prescriptions (claims) | 277 · 300 30-day fills |
|---|---|
| Patients | 122 |
| Total drug cost | $19,846 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- Nuvance Health Medical Practice CT IncDanbury, CT · 747 clinicians
- Nuvance Health Medical Practice PCReading, PA · 595 clinicians
- Middlesex HospitalMiddletown, CT · 234 clinicians
- New York Medical Physician Associates PCKingston, NY · 202 clinicians
- The Charlotte Hungerford HospitalTorrington, CT · 200 clinicians
- Griffin Faculty Physicians IncDerby, CT · 134 clinicians
- Day Kimball Medical Group IncPutnam, CT · 89 clinicians
Hospital affiliations
- Charlotte Hungerford HospitalTorrington, CT
- Danbury HospitalDanbury, CT
- Griffin HospitalDerby, CT
- Middlesex HospitalMiddletown, CT
- Putnam Hospital CenterCarmel, NY
Other facilities
- Regional HospiceHospice · Danbury, CT
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine providers in Derby
- 1902471352
- 1609220722
- 1215673264
- 1376112060
- 1679738017
- 1508026428
- 1962198705
- 1265635148
- 1588641955
- 1205375227
- 1295398899
- 1437767134