JAMES L. WILLIS (D.O.) – Hospitalist Physician, NPI 1154322915
Hospitalist Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,232 EMERGENCY MEDICINE in FL
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Provider Addresses for JAMES L. WILLIS (D.O.)
David Walker Drive, Tavares, Lake County, Florida, 32778, United States
TAVARES, FL 327785745
Phone: (352) 742-8836
Fax: (352) 742-8829
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)
CMS reports 4 Open Payments records for all available years, with a total value of $112.
Total Amount is formed as General ($112) + Research ($0) + Ownership ($0) = $112.
Last reported payment date: 2023-10-10 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($53).
Total Amount
$112
General + Research + Ownership
Payments
4
Total payment records
General Amount
$112
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-10-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $53 |
| PFIZER INC. | $40 |
| AstraZeneca Pharmaceuticals LP | $19 |
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: 2021-10-13
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20040207000228 | I | Emergency Medicine | FL | TBD |
| I20211013002135 | I | Family Practice | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 845 | 253 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 170 | 155 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 73 | 71 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 20 | 20 | $0 |
Insurance plans in this area (ZIP 32778)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | FL | |
| U R O L O G Y | FL | |
| G A S T R O E N T E R O L O G Y | FL | |
| Thoracic Surgery | FL | |
| Internal Medicine, Nephrology | PA | |
| Nurse Practitioner | GA | |
| Internal Medicine | NY | |
| General Surgery | FL | |
| Pulmonary Disease, Critical Care (Intensivists), Sleep Medicine | FL | |
| Cardiac Electrophysiology, Cardiovascular Disease (Cardiology) | FL |
Reviews
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