Geehan Suleyman, MD
Infectious Disease · Detroit, MINPI 1891010401
Payments from drug & device makers
What this record shows
3 manufacturers reported payments, led by Astellas Pharma US Inc at 48.5% of the total. 2025 is the largest year on record at $735, 9.2 times the $80 reported in 2023.
Across 8 payments — averaging $113.78 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Astellas Pharma US Inc$442
- Biomerieux Inc$423
- Viiv Healthcare Company$45
Across 1 payment — averaging $115,306 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.
- Pfizer$115K
What the payments were for
- Food & beverage$46851%
- Education$44249%
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 |
|---|---|---|
| Astellas Pharma US Inc | 5 | $442 |
| Biomerieux Inc | 2 | $423 |
| Viiv Healthcare Company | 1 | $45 |
How this compares
$910 in reported general payments places this provider in the 75th percentile of 257 infectious disease providers in Michigan.
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.
Other infectious disease in Detroit
- Teena ChopraDetroit$328K
- Indira BrarDetroit$323K
- Rodger MacarthurDetroit$150K
- Pranatharthi ChandrasekarDetroit$71K
- Mayur RameshDetroit$30K
- Marcus ZervosDetroit$26K
- Jack SobelDetroit$18K
- Smitha GudipatiDetroit$16K
- Ronaldo SupenaDetroit$14K
- Wasif HafeezDetroit$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.