Doctor profile · Federal record

Dr. William Whitehouse, D.O.

Internal Medicine Physician (CMS: Internal Medicine) · Greenville, SC

  • NPI 1104121847
  • Accepts Medicare
  • 16 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
317 Saint Francis Dr # 220B
Greenville, SC 296013965
(864) 255-1304

Credentials & registration

NPPES · NUCC
NPI registered
January 2011 — 15 yrs on file
Profile last updated
November 3, 2025
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
South Carolina #36084

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104121847. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
316
Distinct HCPCS
5
Medicare allowed
$33,157
HCPCS Description Services Patients Avg allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 107 101 $123
99497 Advance care planning, first 30 minutes 78 77 $72
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 70 51 $75
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 44 44 $163
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 17 15 $113

In context: peer comparison

Among 73 peers in Greenville Internal Medicine Physician, average services per provider: 207. This provider delivers 1.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
24
Patients
0
Total drug cost
$681
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 13 0 $401
Morphine Sulfate ER (Morphine Sulfate) Brand 11 0 $280

Frequently asked questions

Auto-generated from federal data
What is Dr. William Whitehouse's medical specialty?
Dr. William Whitehouse practices Internal Medicine Physician in Greenville, SC.
Where does Dr. William Whitehouse practice?
Dr. William Whitehouse practices at 317 Saint Francis Dr # 220B, Greenville, SC 296013965. Office phone: 8642551304.
What is Dr. William Whitehouse's NPI?
Dr. William Whitehouse's National Provider Identifier (NPI) is 1104121847, issued by NPPES.
Does Dr. William Whitehouse accept Medicare assignment?
Yes. Dr. William Whitehouse accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Whitehouse commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Advance care planning (HCPCS 99497); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.