JOHN WARREN – Internal Medicine Physician, NPI 1013120104
Internal Medicine 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 JOHN WARREN
1100, Ruby Tyler Parkway, Buena Vista, Beverley Heights, Tuscaloosa, Tuscaloosa County, Alabama, 35404, United States
TUSCALOOSA, AL 354042959
Phone: (205) 759-2582
Fax: (205) 759-2985
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2008-04-22
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 |
|---|---|---|---|---|
| I20080422000212 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| J1071 | Injection, testosterone cypionate, 1 mg | 10,300 | 12 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 1,594 | 474 | $0 |
| 80053 | Blood test, comprehensive group of blood chemicals | 1,072 | 454 | $0 |
| 85025 | Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 969 | 443 | $0 |
| 99490 | Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 936 | 105 | $0 |
Insurance plans in this area (ZIP 35404)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Hospice/Palliative Care | AL | |
| Internal Medicine | AL | |
| Nurse Practitioner | AL | |
| Internal Medicine | AL | |
| Internal Medicine | AL | |
| Nurse Practitioner | AL | |
| Internal Medicine | AL | |
| Internal Medicine | AL |
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