ERNESTO GUSTAVO ZAVALETA (MD) – Hospitalist Physician, NPI 1982692554
Hospitalist Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
12,368 INTERNAL MEDICINE in FL
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Provider Addresses for ERNESTO GUSTAVO ZAVALETA (MD)
1099, Citrus Tower Boulevard, Clermont, Lake County, Florida, 34711, United States
SOUTH LAKE HOSPITAL
CLERMONT, FL 347111947
Phone: (352) 241-9322
Fax: (352) 241-9107
Type: Location
PO BOX 783247
WINTER GARDEN, FL 347783247
Phone: (352) 241-9322
Fax: (352) 241-9107
Type: Mailing
1099 Citrus Tower Blvd
South Lake Hospital
Clermont, FL 347111947
Phone: (352) 241-9322
Fax: (352) 241-9107
Type: Location
9981 S HEALTHPARK DR
FORT MYERS, FL 339083618
Phone: (239) 343-2052
Fax: (239) 343-5348
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 $52.
Total Amount is formed as General ($52) + Research ($0) + Ownership ($0) = $52.
Last reported payment date: 2024-01-30 • Largest payer in this snapshot: Chiesi USA, Inc. ($21).
Total Amount
$52
General + Research + Ownership
Payments
3
Total payment records
General Amount
$52
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-01-30
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Chiesi USA, Inc. | $21 |
| Merck Sharp & Dohme LLC | $17 |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | $14 |
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: 2021-01-28
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20051004000360 | I | Internal Medicine | FL | TBD |
| I20180320001194 | I | Internal Medicine | WV | TBD |
| I20210128002567 | I | Internal Medicine | TN | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 591 | 223 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 171 | 82 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 101 | 101 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 79 | 79 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 66 | 66 | $0 |
Insurance plans in this area (ZIP 34711)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | FL | |
| Physician Assistant | FL | |
| Internal Medicine, Hospitalist | FL | |
| Hospitalist, Family Practice | FL | |
| Internal Medicine | FL | |
| Internal Medicine | FL | |
| Family Practice | FL | |
| Internal Medicine | FL | |
| Internal Medicine, Hospitalist | FL | |
| Internal Medicine | PA |
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