Robert Riesenberg
Psychiatry · Atlanta, GANPI 1417116906
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $3,980 of the $5,100 with a category attached, or 78.0%. Pfizer accounts for 78.4% of it on its own, with 1 other manufacturer making up the rest. Reporting peaked in 2019 at $3,980 and has fallen 99.5% since, to $20 in 2021.
Across 4 payments — averaging $1275.00 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$4K
- Merck$1K
Across 3,389 payments — averaging $15,085 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$12M
- AbbVie$10.8M
- Teva Pharmaceuticals USA, Inc.$4.4M
- Sunovion Pharmaceuticals Inc.$4.1M
- Otsuka Pharmaceutical Development & Commercialization, Inc.$3.5M
- Sumitomo Pharma America, Inc.$2.5M
- plus $13.8M from 36 others
What the payments were for
- Consulting fees$1,10022%
- Speaking & faculty fees$3,98078%
- Gifts$200%
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.
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.
- MK-8189$1,100
How this compares
$5,100 in reported general payments places this provider in the 85th percentile of 900 psychiatry providers in Georgia.
Other psychiatry in Atlanta
- David PurselleAtlanta$307K
- Michael BurkeAtlanta$217K
- Bryon EvansAtlanta$211K
- Kerry ResslerAtlanta$196K
- Patricio Riva PosseAtlanta$122K
- Ray HorwitzAtlanta$64K
- Boadie DunlopAtlanta$61K
- Zohaib HaqueAtlanta$49K
- Raymond KotwickiAtlanta$44K
- Joseph BergerAtlanta$24K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.