Nathaniel Treister, DMD
Oral and Maxillofacial Surgery · Lebanon, NHNPI 1306819388
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $1,100 of the $1,242 with a category attached, or 88.6%. AstraZeneca accounts for 88.6% of it on its own, with 1 other manufacturer making up the rest. That places this record below the midpoint for oral and maxillofacial surgery clinicians in NH, where the typical reported total is $1,151.
Across 2 payments — averaging $620.80 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$1K
- Henry Schein, Inc.$142
Across 6 payments — averaging $30,949 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Fortovia Therapeutics, Inc.$184K
- Sanofi-aventis U.S. LLC$1K
What the payments were for
- Consulting fees$1,10089%
- Food & beverage$14211%
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 |
|---|---|---|
| AstraZeneca | 1 | $1,100 |
| Henry Schein, Inc. | 1 | $142 |
How this compares
$1,242 in reported general payments places this provider in the 50th percentile of 44 oral and maxillofacial surgery providers in New Hampshire.
See all oral and maxillofacial surgery providers in New Hampshire →
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 |
|---|---|---|
| Dexamethasone | 92 | $3,412 |
| Gabapentin | 24 | $1,145 |
| Fluconazole | 36 | $699 |
| Clonazepam | 43 | $520 |
| Nystatin | 11 | $266 |
| Hydroxychloroquine Sulfate | 12 | $133 |
| Chlorhexidine Gluconate | 40 | $95 |
Paid to pharmacies, not to this prescriber.
Other oral and maxillofacial surgery in Lebanon
- Gary HammondLebanon$224
- Rocco AddanteLebanon$15
- Nader MoavenianNashua$36K
- Zachary SchonfieldNashua$20K
- Daniel BraaschNashua$12K
- Louis ClarizioSomersworth$8K
- Mina FahmyNashua$8K
- Angel TorioNashua$7K
- Corey DecoteauNashua$5K
- David KeenanConcord$5K
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.