CHARLES J DISKIN (MD) – Nephrology Physician, NPI 1023122983
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,215 INTERNAL MEDICINE in AL
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Provider Addresses for CHARLES J DISKIN (MD)
121 N 20TH ST STE 20A
OPELIKA, AL 368015456
Phone: (334) 749-6523
Fax: (334) 742-0242
Type: Mailing
Village Professional Drive, Harwell Hills, Opelika, Lee County, Alabama, 36801, United States
SUITE 3
OPELIKA, AL 368015442
Phone: (334) 749-6523
Fax: (334) 742-0242
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $73.
Total Amount is formed as General ($73) + Research ($0) + Ownership ($0) = $73.
Last reported payment date: 2024-12-12 • Largest payer in this snapshot: CALLIDITAS THERAPEUTICS US INC. ($47).
Total Amount
$73
General + Research + Ownership
Payments
3
Total payment records
General Amount
$73
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| CALLIDITAS THERAPEUTICS US INC. | $47 |
| Travere Therapeutics, Inc. | $26 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2007-12-26
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20071226000140 | I | Nephrology | AL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 18 | 12 | $0 |
Insurance plans in this area (ZIP 36801)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | AL | |
| Internal Medicine, Nephrology | AL | |
| N E P H R O L O G Y | MD | |
| Nurse Practitioner | AL | |
| N E P H R O L O G Y | TN | |
| N E P H R O L O G Y | AL | |
| Nurse Practitioner | AL | |
| - | AL | |
| N E P H R O L O G Y | AL |
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