Dean W. Singer, D.O.
NPI 1396131538ActiveIndividual· Family Medicine· Greenfield, MA
Family Medicine (D.O.) in Greenfield, Massachusetts, trained at New York College of Osteo Medicine of New York Institute of Technology (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $1,186,181 for 10,139 claims, against $238,653 paid for services in 2024. Indivior Inc. was the largest of 3 companies reporting payments in 2025, $69.78 in all, mostly food and beverage.
Overview
| NPI | 1396131538 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Apr 14, 2015 |
| Last updated in NPPES | Jul 29, 2025 |
| Certified by provider | Jul 29, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 273045 | MA |
| Family Medicine, Addiction Medicine | 207QA0401X | 273045 | MA |
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 - Addiction Medicine (MA); Practitioner - Family Practice (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 555 |
|---|---|
| Services billed | 4,856 across 63 procedure codes |
| Paid by Medicare | $238,653 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,139 · 17,498 30-day fills |
|---|---|
| Patients | 546 |
| Total drug cost | $1,186,181 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | New York College of Osteo Medicine of New York Institute of Technology |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Addiction Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Greenfield Primary Care PLLCGreenfield, MA · 7 clinicians
- Bridge Psychiatry PLLCGreenfield, MA · 2 clinicians
Hospital affiliations
- Athol Memorial HospitalAthol, MA
- Baystate Franklin Medical CenterGreenfield, MA
- Baystate Medical CenterSpringfield, MA
- Cooley Dickinson Hospital Inc,theNorthampton, MA
- Heywood Hospital -Gardner, MA
Other facilities
- Amedisys Home Health CareHome health agency · Agawam, MA
- Care Central Vna & Hospice IncHome health agency · Gardner, MA
- Vna & Hospice of Cooley DickinsonHome health agency · Northampton, MA
- Hospice of the Fisher HomeHospice · Amherst, MA
- Pioneer Valley Hospice & Palliative CareHospice · Greenfield, MA
Industry payments (Open Payments)
- 2025$69.78 · 3 payments from 3 companies
- 2024$136.22 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Indivior Inc. | $33.32 | 1 |
| E.R. Squibb & Sons, L.L.C. | $19.46 | 1 |
| Glaxosmithkline, LLC. | $17.00 | 1 |
What the 2025 payments were for
- Food and Beverage$69.78 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 26 family medicine physicians in Greenfield · All family medicine physicians in Massachusetts