Ryan John Dillon, APRN
NPI 1871861625ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Fairfield, CT
Nurse Practitioner, Psych/Mental Health (APRN) with Generations Psychiatry Services PLLC, practicing in Fairfield, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $373,407 for 3,830 claims, against $53,987 paid for services in 2024. Abbvie Inc. was the largest of 4 companies reporting payments in 2025, $488.73 in all, mostly food and beverage. Lists Yale-New Haven Hospital as a hospital affiliation.
Overview
| NPI | 1871861625 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN |
| Sole proprietor | No |
| NPI issued | Dec 8, 2011 |
| Last updated in NPPES | Nov 5, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 005420 | CT |
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 - Nurse Practitioner (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 65 |
|---|---|
| Services billed | 1,151 across 6 procedure codes |
| Paid by Medicare | $53,987 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,830 · 5,719 30-day fills |
|---|---|
| Patients | 184 |
| Total drug cost | $373,407 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Generations Psychiatry Services PLLCBranford, CT · 3 clinicians
Hospital affiliation
- Yale-New Haven HospitalNew Haven, CT
Industry payments (Open Payments)
- 2025$488.73 · 22 payments from 4 companies
- 2024$716.50 · 42 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $288.46 | 18 |
| Janssen Pharmaceuticals, Inc | $161.24 | 2 |
| Corium, LLC | $19.86 | 1 |
| Axsome Therapeutics, Inc. | $19.17 | 1 |
What the 2025 payments were for
- Food and Beverage$488.73 · 22 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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