JOHN S. HAYES (M.D.) – Nephrology Physician, NPI 1154520476
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
796 NEPHROLOGY in FL
Provider Addresses for JOHN S. HAYES (M.D.)
601 E DIXIE AVE STE 805
LEESBURG, FL 347485994
Phone: (352) 728-6808
Fax: (352) 728-1743
Type: Location
8485 SE 165th Mulberry Ln
The Villages, FL 321625847
Phone: (352) 728-6808
Fax: (352) 728-1743
Type: Location
511 Medical Plaza Dr Ste 101
Leesburg, FL 347487328
Phone: (352) 728-6808
Fax: (352) 728-1743
Type: Location
601 E Dixie Ave Ste 805
Leesburg, FL 347485994
Phone: (352) 728-6808
Fax: (352) 728-1743
Type: Location
1865 Nightingale Ln # A
Tavares, FL 327784360
Phone: (352) 388-5800
Fax: (352) 388-7001
Type: Location
Medical Plaza Drive, Leesburg, Lake County, Florida, 32748, United States
LEESBURG, FL 347487328
Phone: (352) 728-6808
Fax: (352) 728-1743
Type: Mailing
1400 N US HIGHWAY 441 STE 522
THE VILLAGES, FL 321598983
Phone: (434) 466-4753
Fax: (352) 388-7001
Type: Location
13900 COUNTY ROAD 455
UNIT 107 #373
CLERMONT, FL 347119029
Phone: (352) 388-5800
Fax: (352) 388-7001
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 93 Open Payments records for all available years, with a total value of $2,442.
Total Amount is formed as General ($2,442) + Research ($0) + Ownership ($0) = $2,442.
Last reported payment date: 2024-12-12 • Largest payer in this snapshot: NxStage Medical, Inc. ($630).
Total Amount
$2,442
General + Research + Ownership
Payments
93
Total payment records
General Amount
$2,442
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 |
|---|---|
| NxStage Medical, Inc. | $630 |
| Horizon Therapeutics plc | $266 |
| AstraZeneca Pharmaceuticals LP | $213 |
| Amgen Inc. | $174 |
| Bayer Healthcare Pharmaceuticals Inc. | $135 |
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: 2017-07-17
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Past revalidation due date
Earliest CMS due date was 2023-10-31 (951 days ago).
Enrollment records
2
Earliest due date
2023-10-31
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 |
|---|---|---|---|---|
| I20121023000115 | I | Internal Medicine | VA | 2023-10-31 |
| I20170717003181 | I | Nephrology | FL | TBD |
What to do next
- Verify current status on the CMS Revalidation Lookup Tool immediately.
- Complete revalidation in PECOS or contact your Medicare Administrative Contractor (MAC).
- Overdue revalidation can lead to deactivation of Medicare billing privileges.
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 |
|---|---|---|---|---|
| 99458 | Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes | 2,130 | 244 | $0 |
| 99457 | Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 1,334 | 261 | $0 |
| 99454 | Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | 1,126 | 236 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 1,091 | 559 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 583 | 209 | $0 |
Insurance plans in this area (ZIP 34748)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Neurology, Internal Medicine | FL |
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