Charles J. Diskin, MD

NPI 1023122983ActiveIndividual· Internal Medicine, Nephrology· Opelika, AL

Internal Medicine, Nephrology (MD) in Opelika, Alabama, trained at Perelman School of Med at the University of Pennsylvania (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $51,815 for 135 claims, against $760.25 paid for services in 2024. Novo Nordisk Inc was the largest of 4 companies reporting payments in 2025, $373.68 in all, mostly food and beverage.

Overview

NPI	1023122983
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Aug 18, 2006
Last updated in NPPES	Feb 18, 2026
Certified by provider	Feb 18, 2026

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Nephrology Primary	207RN0300X	104691	AL

About license numbers in NPPES

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	11
Services billed	21 across 7 procedure codes
Paid by Medicare	$760.25

Part D prescriptions in 2024

Prescriptions (claims)	135 · 288 30-day fills
Patients	34
Total drug cost	$51,815
Generic share	87% of claims

Medicare sources and data years

Education and affiliations

Medical school	Perelman School of Med at the University of Pennsylvania
Graduation year	2007
Medicare specialty	Nephrology
Secondary specialties	Internal Medicine