John F. Folan, MD
NPI 1780801605ActiveIndividual· Internal Medicine· Islandia, NY
Internal Medicine (MD) in Islandia, New York, trained at University of Maryland School of Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $1,046,236 for 11,200 claims, against $148,797 paid for services in 2024. Novo Nordisk Inc was the largest of 6 companies reporting payments in 2025, $216.42 in all, mostly food and beverage.
Overview
| NPI | 1780801605 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 20, 2007 |
| Last updated in NPPES | Jan 15, 2020 |
| Certified by provider | Jan 15, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 167755 | NY |
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 - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 669 |
|---|---|
| Services billed | 1,764 across 32 procedure codes |
| Paid by Medicare | $148,797 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11,200 · 14,972 30-day fills |
|---|---|
| Patients | 610 |
| Total drug cost | $1,046,236 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Maryland School of Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Chs Physician Partners PCRoslyn, NY · 743 clinicians
Hospital affiliations
- Good Samaritan Hospital Medical CenterWest Islip, NY
- St Catherine of Siena HospitalSmithtown, NY
- St Charles HospitalPort Jefferson, NY
Other facilities
- Catholic Home CareHome health agency · Farmingdale, NY
- Centerwell Home HealthHome health agency · Hauppauge, NY
- Constellation Home CareHome health agency · Syosset, NY
- Peconic Bay Homehealth ServicesHome health agency · Riverhead, NY
- Good Shepherd HospiceHospice · Farmingdale, NY
- Smithtown Center for Rehabilitation & Nursing CareNursing home · Smithtown, NY
- St Catherine of Siena Nursing and Rehabilitation CNursing home · Smithtown, NY
Industry payments (Open Payments)
- 2025$216.42 · 10 payments from 6 companies
- 2024$746.58 · 35 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $60.17 | 3 |
| Novartis Pharmaceuticals Corporation | $51.19 | 2 |
| Bayer Healthcare Pharmaceuticals Inc. | $35.36 | 2 |
| Lilly USA, LLC | $23.55 | 1 |
| Pfizer Inc. | $23.13 | 1 |
What the 2025 payments were for
- Food and Beverage$216.42 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Islandia
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