Tammam Dayyoub, MD
Clinical Neurophysiology · Detroit, MINPI 1942555727
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 98.7% of the total across 45 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 11 manufacturers reported payments, led by AbbVie at 38.4% of the total. Reporting peaked in 2023 at $349 and has fallen 66.6% since, to $117 in 2025.
Across 45 payments — averaging $29.50 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$510
- UCB, Inc.$421
- GE HealthCare$149
- SK Life Science, Inc.$101
- Otter Pharmaceuticals, LLC$40
- Aquestive Therapeutics, Inc.$23
- plus $84 from 5 others
What the payments were for
- Food & beverage$1,31199%
- Education$171%
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 |
|---|---|---|
| AbbVie | 22 | $510 |
| UCB, Inc. | 9 | $421 |
| GE HealthCare | 6 | $149 |
| SK Life Science, Inc. | 1 | $101 |
| Otter Pharmaceuticals, LLC | 1 | $40 |
| Aquestive Therapeutics, Inc. | 1 | $23 |
| Jazz Pharmaceuticals Inc. | 1 | $22 |
| Neuropace, Inc. | 1 | $21 |
| Sunovion Pharmaceuticals Inc. | 1 | $21 |
| Catalyst Pharmaceuticals, Inc. | 1 | $17 |
| Sumitomo Pharma America, Inc. | 1 | $4 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
Too few clinical neurophysiology providers in Michiganto place this figure against a meaningful peer group, so we don't.
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 |
|---|---|---|
| XcopriCenobamate | 53 | $61,997 |
| BriviactBrivaracetam | 27 | $46,319 |
| FycompaPerampanel | 21 | $36,071 |
| Keppra XrLevetiracetam | 11 | $21,011 |
| UbrelvyUbrogepant | 18 | $20,519 |
| Emgality PenGalcanezumab-Gnlm | 26 | $18,078 |
| QuliptaAtogepant | 13 | $16,128 |
| Clobazam | 83 | $15,485 |
| Levetiracetam | 138 | $8,960 |
| Lacosamide | 78 | $4,992 |
| Oxcarbazepine | 60 | $4,922 |
| Lamotrigine ErLamotrigine | 15 | $2,224 |
| Memantine Hcl | 70 | $1,808 |
| Divalproex Sodium | 20 | $1,740 |
| Divalproex Sodium ErDivalproex Sodium | 61 | $1,589 |
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 |
|---|---|---|
| SK Life Science, Inc.Xcopri | $101 | $61,99753 claims |
| UCB, Inc.Briviact | $421 | $46,31927 claims |
| AbbVieUbrelvy, Qulipta | $510 | $36,64631 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. There are too few clinical neurophysiology providers in Michiganon file to place this against a meaningful peer group, so we don't.
Other clinical neurophysiology in Detroit
- Rohit MarawarDetroit$60K
- Lawrence ZeidmanDetroit$31K
- Jian XuDetroit$757
- Satyamurthy KotamrajuDetroit$487
- Karim FramLapeer$6K
- Tyson BurghardtEast Lansing$4K
- Edward ChenGrand Rapids$2K
- Mohammad PoostizadehGrand Rapids$2K
- Erica AustinTraverse City$1K
- Daniela MinecanAnn Arbor$971
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.