Patrick Hammen, MD
Colon & Rectal Surgery · Smyrna, GANPI 1164461505
Payments from drug & device makers
What this record shows
This record is dominated by education: $8,049 of the $10,085 with a category attached, or 79.8%. Intuitive Surgical accounts for 90.5% of it on its own, with 11 other manufacturers making up the rest. Reporting peaked in 2020 at $7,075 and has fallen 95.2% since, to $337 in 2025.
Across 37 payments — averaging $272.56 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$9K
- Medtronic$243
- Davol Inc.$233
- THD America, Inc.$173
- Dilon Technologies, Inc.$145
- Boston Scientific$50
- plus $112 from 6 others
What the payments were for
- Travel & lodging$6717%
- Food & beverage$1,36514%
- Education$8,04980%
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 |
|---|---|---|
| Intuitive Surgical | 17 | $9,130 |
| Medtronic | 4 | $243 |
| Davol Inc. | 5 | $233 |
| THD America, Inc. | 1 | $173 |
| Dilon Technologies, Inc. | 1 | $145 |
| Boston Scientific | 2 | $50 |
| Johnson & Johnson | 1 | $25 |
| Prescient Surgical | 2 | $22 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $19 |
| Incyte Corporation | 1 | $17 |
| Braintree Laboratories, Inc. | 1 | $15 |
| Ferring Pharmaceuticals Inc. | 1 | $13 |
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.
- Da Vinci Surgical System$8,773
- ManoScan$163
- HemoBlast Bellows$145
- ARISTA$144
How this compares
$10,085 in reported general payments places this provider in the 65th percentile of 66 colon & rectal surgery providers in Georgia.
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 |
|---|---|---|
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 28 | $1,794 |
| Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl | 63 | $832 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 54 | $360 |
| Hydrocortisone | 28 | $234 |
| Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl | 16 | $225 |
Paid to pharmacies, not to this prescriber.
Other colon & rectal surgery in Smyrna
- Anushka ArumugasaamySmyrna$2K
- David ArmstrongLawrenceville$1.2M
- Jeffrey CohenMarietta$663K
- Erin King-MullinsMacon$119K
- Jay SinghRoswell$102K
- Jason PetrofskiCumming$74K
- Dennis ChoatFayetteville$65K
- Seth RosenJohns Creek$42K
- Patrick SullivanAtlanta$41K
- Jose AycinenaGainesville$33K
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.