David Irving Allyn, PA-C
NPI 1912321803ActiveIndividual· Physician Assistant· West Haven, CT
Physician Assistant (PA-C) with Hhc Physician Services PLLC, practicing in West Haven, Connecticut. 347 Medicare patients in 2024, $27,052 paid; nearly all of their 527 Part D prescriptions were generic (96%). Lists Griffin Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1912321803 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | Yes |
| NPI issued | Feb 12, 2014 |
| Last updated in NPPES | Dec 4, 2025 |
| Certified by provider | Dec 4, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 3059 | 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 - Physician Assistant (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 347 |
|---|---|
| Services billed | 387 across 14 procedure codes |
| Paid by Medicare | $27,052 |
Part D prescriptions in 2024
| Prescriptions (claims) | 527 · 536 30-day fills |
|---|---|
| Patients | 345 |
| Total drug cost | $12,947 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Hhc Physician Services PLLCHamden, CT · 132 clinicians
Hospital affiliations
- Griffin HospitalDerby, CT
- Lawrence & Memorial HospitalNew London, CT
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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