Derek Arthur Klemm, D.O., PHARM.D.
NPI 1225300494ActiveIndividual· Family Medicine, Addiction Medicine· Demorest, GA
Family Medicine, Addiction Medicine (D.O., PHARM.D.) in Demorest, Georgia, trained at Lake Erie College of Osteopathic Medicine, Erie (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $1,262,067 for 10,711 claims, against $561.05 paid for services in 2024. Vanda Pharmaceuticals Inc. was the largest of 21 companies reporting payments in 2025, $1,258 in all, mostly food and beverage.
Overview
| NPI | 1225300494 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O., PHARM.D. |
| Sole proprietor | No |
| NPI issued | Feb 3, 2012 |
| Last updated in NPPES | Mar 10, 2023 |
| Certified by provider | Mar 16, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine, Addiction Medicine Primary | 207QA0401X | 080289 | GA |
| Pharmacist | 183500000X | PS47555 | FL |
| Family Medicine | 207Q00000X | 080289 | GA |
| Family Medicine | 207Q00000X | OS14186 | FL |
| General Practice | 208D00000X | UO4670 | FL |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Family Practice (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 45 |
|---|---|
| Services billed | 68 across 11 procedure codes |
| Paid by Medicare | $561.05 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,711 · 20,102 30-day fills |
|---|---|
| Patients | 519 |
| Total drug cost | $1,262,067 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Lake Erie College of Osteopathic Medicine, Erie |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Family Practice |
Medical group
- Medlink Georgia IncColbert, GA · 91 clinicians
Hospital affiliations
- Northeast Georgia Medical Center HabershamDemorest, GA
- Northeast Georgia Medical Center, IncGainesville, GA
- Northside HospitalAtlanta, GA
Other facilities
- Enhabit Home HealthHome health agency · Gainesville, GA
- Northeast Georgia Home Health III, LLCHome health agency · Demorest, GA
- Tugaloo Home Health Agency, An Amedisy CompanyHome health agency · Gainesville, GA
- Tugaloo Home Health Agency, An Amedisys CompanyHome health agency · Lavonia, GA
Industry payments (Open Payments)
- 2025$1,258 · 67 payments from 21 companies
- 2024$1,098 · 62 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vanda Pharmaceuticals Inc. | $164.84 | 9 |
| Abbvie Inc. | $162.41 | 13 |
| Braeburn Inc. | $123.38 | 5 |
| Corcept Therapeutics | $112.48 | 5 |
| Xeris Pharmaceuticals, Inc. | $85.91 | 4 |
What the 2025 payments were for
- Food and Beverage$1,258 · 67 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records