Erin Lynne Hillis, PA-C
NPI 1538894753ActiveIndividual· Physician Assistant· West Haven, CT
Physician Assistant (PA-C) in West Haven, Connecticut, trained at Yale University School of Medicine (class of 2022). 521 Medicare patients in 2024, $180,012 paid; nearly all of their 2,699 Part D prescriptions were generic (90%). Otsuka America Pharmaceutical, Inc. was the largest of 3 companies reporting payments in 2025, $349.27 in all, mostly food and beverage.
Overview
| NPI | 1538894753 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jul 21, 2022 |
| Last updated in NPPES | Mar 7, 2023 |
| Certified by provider | Mar 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 23.005721 | CT |
| Physician Assistant | 363A00000X | — | — |
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 | 521 |
|---|---|
| Services billed | 2,876 across 23 procedure codes |
| Paid by Medicare | $180,012 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,699 · 2,751 30-day fills |
|---|---|
| Patients | 383 |
| Total drug cost | $125,436 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Yale University School of Medicine |
|---|---|
| Graduation year | 2022 |
| Medicare specialty | Physician Assistant |
Medical group
- Hhc Physician Services PLLCHamden, CT · 132 clinicians
Hospital affiliations
- Danbury HospitalDanbury, CT
- Griffin HospitalDerby, CT
- Midstate Medical CenterMeriden, CT
- Yale-New Haven HospitalNew Haven, CT
Other facilities
- Masonicare Health CenterNursing home · Wallingford, CT
Industry payments (Open Payments)
- 2025$349.27 · 6 payments from 3 companies
- 2024$442.73 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $254.63 | 4 |
| Neurocrine Biosciences, Inc. | $68.27 | 1 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $26.37 | 1 |
What the 2025 payments were for
- Food and Beverage$349.27 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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