Patrick Farrell Hammen, M.D.
NPI 1164461505ActiveIndividual· Colon & Rectal Surgery· Smyrna, GA
Colon & Rectal Surgery (M.D.) in Smyrna, Georgia, trained at Mercer University School of Medicine (class of 1992). In 2024 Medicare paid $38,060 for 120 patients, and Part D covered 253 of their prescriptions, 89% of them generic. Dilon Technologies, Inc. was the largest of 4 companies reporting payments in 2025, $336.78 in all, mostly food and beverage.
Overview
| NPI | 1164461505 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 4, 2006 |
| Last updated in NPPES | Oct 9, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Colon & Rectal Surgery Primary | 208C00000X | 043383 | GA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Colorectal Surgery (Proctology) (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 120 |
|---|---|
| Services billed | 235 across 38 procedure codes |
| Paid by Medicare | $38,060 |
Part D prescriptions in 2024
| Prescriptions (claims) | 253 · 269 30-day fills |
|---|---|
| Patients | 161 |
| Total drug cost | $5,367 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Mercer University School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Colorectal Surgery (Proctology) |
| Secondary specialties | General Surgery |
Medical group
- Wellstar Medical Group LLCMarietta, GA · 3,093 clinicians
Hospital affiliation
- Wellstar Cobb Medical CenterAustell, GA
Industry payments (Open Payments)
- 2025$336.78 · 4 payments from 4 companies
- 2024$219.93 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dilon Technologies, Inc. | $144.58 | 1 |
| Davol Inc. | $143.51 | 1 |
| Boston Scientific Corporation | $33.59 | 1 |
| Braintree Laboratories, Inc. | $15.10 | 1 |
What the 2025 payments were for
- Food and Beverage$336.78 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other colorectal surgeons in Smyrna
- 1902196629