Doctor profile · Federal record
Dr. William Warren, M.D.
Anesthesiology Physician (CMS: Anesthesiology) · Anesthesiology Physician · Greenville, SC
- NPI 1922232610
- Accepts Medicare
- 17 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
67 Creekside Park CT
Greenville, SC 296154810
(864) 522-3700
fax (864) 522-3705 - Mailing address
-
300 E McBee Ave Fl 4
Greenville, SC 296012842
Credentials & registration
- NPI registered
- May 2009 — 17 yrs on file
- Profile last updated
- May 7, 2021
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207L00000X — NUCC code
- State licenses (2)
- South Carolina #40510 · Alabama #30718
- Medicaid
- SC #405109
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1922232610. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
130
Distinct HCPCS
5
Medicare allowed
$11,050
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
00731 |
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 39 | 39 | $74 | |
00811 |
Anesthesia for other procedure on large bowel using an endoscope | 34 | 34 | $85 | |
00813 |
Anesthesia for procedure on small and large bowel using an endoscope | 25 | 25 | $108 | |
00812 |
Anesthesia for exam of colon using an endoscope | 20 | 20 | $69 | |
01922 |
Anesthesia for x-ray or radiation therapy | 12 | 12 | $99 |
In context: peer comparison
Among 57 peers in Greenville Anesthesiology Physician, average services per provider: 24. This provider delivers 5.4× the peer median.Open Payments
Industry payments received
All-time total
$28
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Merck Sharp & Dohme LLC | 1 | $27.57 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. William Warren's medical specialty?
Dr. William Warren practices Anesthesiology Physician in Greenville, SC.
Where does Dr. William Warren practice?
Dr. William Warren practices at 67 Creekside Park CT, Greenville, SC 296154810. Office phone: 8645223700.
What is Dr. William Warren's NPI?
Dr. William Warren's National Provider Identifier (NPI) is 1922232610, issued by NPPES.
Does Dr. William Warren accept Medicare assignment?
Yes. Dr. William Warren accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Warren commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731); Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811); Anesthesia for procedure on small and large bowel using an endoscope (HCPCS 00813). Source: CMS Medicare Physician & Other Practitioners file.