JOSEPH W WARREN (M.D.) – Nephrology Physician, NPI 1952394058
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
796 NEPHROLOGY in FL
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Provider Addresses for JOSEPH W WARREN (M.D.)
807, Orlando Avenue, Winter Park, Orange County, Florida, 32789, United States
SUITE C
WINTER PARK, FL 327894870
Phone: (407) 894-4693
Fax: (407) 539-0469
Type: Mailing
Florida Hospital Cancer Institute, 2501, North Orange Avenue, Orlando, Orange County, Florida, 32804, United States
SUITE 537N
ORLANDO, FL 328044603
Phone: (407) 894-4693
Fax: (407) 896-0569
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 66 Open Payments records for all available years, with a total value of $1,601.
Total Amount is formed as General ($1,601) + Research ($0) + Ownership ($0) = $1,601.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Otsuka America Pharmaceutical, Inc. ($488).
Total Amount
$1,601
General + Research + Ownership
Payments
66
Total payment records
General Amount
$1,601
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Otsuka America Pharmaceutical, Inc. | $488 |
| Baxter Healthcare | $146 |
| CALLIDITAS THERAPEUTICS US INC. | $83 |
| American Regent | $80 |
| Ascendis Pharma Inc | $76 |
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: 2010-02-10
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 |
|---|---|---|---|---|
| I20100210000682 | I | Nephrology | FL | 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 |
|---|---|---|---|---|
| J1756 | Injection, iron sucrose, 1 mg | 13,200 | 15 | $0 |
| Q5106 | Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units | 1,030 | 11 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 542 | 242 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 322 | 148 | $0 |
| 85025 | Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 295 | 139 | $0 |
Insurance plans in this area (ZIP 32789)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| N E P H R O L O G Y | FL | |
| Nurse Practitioner | FL | |
| - | FL | |
| Internal Medicine | FL | |
| N E P H R O L O G Y | FL | |
| N E P H R O L O G Y | FL | |
| N E P H R O L O G Y | FL | |
| Physician Assistant | FL | |
| Nurse Practitioner | FL | |
| N E P H R O L O G Y | FL |
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