Dean Singer, DO
Family Medicine · Greenfield, MANPI 1396131538
Payments from drug & device makers
Across 39 payments — averaging $22.13 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- E.r. Squibb & Sons, L.L.C.$305
- AbbVie$186
- Kerecis Limited$93
- Indivior Inc.$72
- GSK$51
- Exact Sciences$47
- plus $109 from 4 others
What the payments were for
- Food & beverage$863100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| E.r. Squibb & Sons, L.L.C. | 14 | $305 |
| AbbVie | 7 | $186 |
| Kerecis Limited | 3 | $93 |
| Indivior Inc. | 3 | $72 |
| GSK | 3 | $51 |
| Exact Sciences | 3 | $47 |
| Gilead | 2 | $41 |
| Amarin Pharma, Inc. | 2 | $32 |
| Abbott | 1 | $20 |
| Lilly USA, LLC | 1 | $17 |
How this compares
$863 in reported general payments places this provider in the 80th percentile of 1,049 family medicine providers in Massachusetts.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| EliquisApixaban | 196 | $182,638 |
| TrulicityDulaglutide | 69 | $82,157 |
| JardianceEmpagliflozin | 111 | $81,178 |
| OzempicSemaglutide | 65 | $59,912 |
| WegovySemaglutide | 42 | $58,575 |
| MounjaroTirzepatide | 49 | $51,449 |
| FarxigaDapagliflozin Propanediol | 57 | $45,815 |
| SublocadeBuprenorphine | 18 | $38,935 |
| Lurasidone Hcl | 37 | $33,812 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 44 | $32,079 |
| XifaxanRifaximin | 11 | $31,280 |
| Risperidone ErRisperidone Microspheres | 12 | $24,072 |
| OxycontinOxycodone Hcl | 27 | $21,193 |
| Breo ElliptaFluticasone/Vilanterol | 51 | $20,044 |
| QuliptaAtogepant | 17 | $18,872 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Lilly USA, LLCTrulicity, Mounjaro | $17 | $133,606118 claims |
| GSKTrelegy Ellipta, Breo Ellipta | $51 | $52,12395 claims |
| Indivior Inc.Sublocade | $72 | $38,93518 claims |
| AbbVieQulipta, Linzess | $186 | $29,89834 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 80th percentile of 1,049 family medicine providers in Massachusetts.
Other family medicine in Greenfield
- Robert BeckWestford$2.1M
- Katherine Gergen BarnettBoston$226K
- Peter O'DwyerBoston$163K
- Kelly LannuttiWeymouth$122K
- Larry CulpepperBoston$109K
- Jennifer WeylerWorcester$105K
- Megan McCoyFramingham$75K
- Kristina GraceyWorcester$73K
- Suzanne MitchellBoston$69K
- John GrievesonLowell$24K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.