Charles Diskin, M.D.
NPI 1326458498 · Nephrology Physician · Opelika, AL
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Diskin, M.D. is a Nephrology Physician provider in Opelika, AL (NPI 1326458498).
Provider details
- NPI number
- 1326458498
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 38096 (AL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
618 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 233 | $314 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 116 | $70 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 | 84 | $258 |
| Hemodialysis Procedure With Physician Evaluation90935 | 77 | $63 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $62 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 33 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dapagliflozin Propanediolbrand: Farxiga | 57 | — |
| Finerenonebrand: Kerendia | 49 | — |
| Losartan Potassium | 32 | 16 |
| Pentoxifylline | 30 | 13 |
| Carvedilol | 30 | — |
| Lisinopril | 28 | 12 |
| Calcitriol | 24 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$793 across 26 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-04-29
- Last updated
- 2026-03-19
- Certified
- 2026-03-19
Frequently asked questions
- What is Charles Diskin's NPI number?
- Charles Diskin's National Provider Identifier (NPI) is 1326458498, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Diskin's specialty?
- Charles Diskin is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Diskin located?
- Charles Diskin's practice location on file with NPPES is 121 N 20th St Ste 20a, Opelika, AL 36801-5456.
- What is Charles Diskin's phone number?
- The practice phone number listed in the NPPES registry for Charles Diskin is (334) 749-6523.
- Does Charles Diskin accept Medicare?
- Charles Diskin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Diskin's NPI active?
- Yes — Charles Diskin's NPI (1326458498) is active in the NPPES registry as of the last update on 2026-03-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.