Doctor profile · Federal record

Dr. James Willis, D.O.

Hospitalist Physician (CMS: Emergency Medicine) · Family Medicine Physician · Tavares, FL

  • NPI 1154322915
  • Accepts Medicare
  • 28 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1741 David Walker Dr
Tavares, FL 327785745
(352) 742-8836
fax (352) 742-8829

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
August 22, 2016
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
Florida #OS8915
Medicaid
FL #268324500

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1154322915. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,108
Distinct HCPCS
4
Medicare allowed
$136,739
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 845 253 $120
99239 Hospital discharge day management, more than 30 minutes 170 155 $116
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 73 71 $175
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 20 20 $132

In context: peer comparison

Among 8 peers in Tavares Hospitalist Physician, average services per provider: 158. This provider delivers 7.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
206
Patients
130
Total drug cost
$14,123
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 21 21 $12,239
Prednisone Generic 21 20 $40
Pantoprazole Sodium Generic 19 13 $154
Metoprolol Succinate Generic 17 12 $199
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 15 15 $75
Cefdinir Generic 14 14 $126
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 14 13 $67
Atorvastatin Calcium Generic 13 11 $141
Digoxin Generic 13 0 $148
Metoprolol Tartrate Generic 13 11 $193

Frequently asked questions

Auto-generated from federal data
What is Dr. James Willis's medical specialty?
Dr. James Willis practices Hospitalist Physician in Tavares, FL.
Where does Dr. James Willis practice?
Dr. James Willis practices at 1741 David Walker Dr, Tavares, FL 327785745. Office phone: 3527428836.
What is Dr. James Willis's NPI?
Dr. James Willis's National Provider Identifier (NPI) is 1154322915, issued by NPPES.
Does Dr. James Willis accept Medicare assignment?
Yes. Dr. James Willis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Willis commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.