Charles Dyer Diskin, M.D.
NPI 1326458498ActiveIndividual· Internal Medicine, Nephrology· Opelika, AL
Internal Medicine, Nephrology (M.D.) with Hypertension and Nephrology, practicing in Opelika, Alabama. In 2024 Medicare paid $98,033 for 217 patients, and Part D covered 596 of their prescriptions, 78% of them generic. Novartis Pharmaceuticals Corporation was the largest of 8 companies reporting payments in 2025, $605.73 in all, mostly food and beverage. Lists Russell Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1326458498 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 29, 2014 |
| Last updated in NPPES | Mar 19, 2026 |
| Certified by provider | Mar 19, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 38096 | AL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (AL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 217 |
|---|---|
| Services billed | 692 across 20 procedure codes |
| Paid by Medicare | $98,033 |
Part D prescriptions in 2024
| Prescriptions (claims) | 596 · 1,258 30-day fills |
|---|---|
| Patients | 152 |
| Total drug cost | $145,532 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Nephrology |
Medical group
- Hypertension and NephrologyOpelika, AL · 9 clinicians
Hospital affiliations
- Russell Medical CenterAlexander City, AL
- The East Alabama Healthcare AuthorityOpelika, AL
Other facilities
- Bma LangdaleDialysis facility · Valley, AL
- Fmc Alexander CityDialysis facility · Alexander City, AL
- Fmc DadevilleDialysis facility · Dadeville, AL
- Fmc OpelikaDialysis facility · Opelika, AL
- Roanoke Dialysis ClinicDialysis facility · Roanoke, AL
Industry payments (Open Payments)
- 2025$605.73 · 19 payments from 8 companies
- 2024$792.86 · 27 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $172.62 | 6 |
| Calliditas Therapeutics US Inc. | $154.03 | 2 |
| Travere Therapeutics, Inc. | $110.24 | 3 |
| Fresenius USA Marketing, Inc. | $86.08 | 4 |
| Otsuka America Pharmaceutical, Inc. | $28.48 | 1 |
What the 2025 payments were for
- Food and Beverage$550.73 · 18 payments
- Education$55.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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