Doctor profile · Federal record

Dr. Tammy Williamson

Certified Registered Nurse Anesthetist · Columbia, SC

  • NPI 1487611182
  • 20 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
5 Medical Park, Palmetto Health Richland
Columbia, SC 29203
(803) 296-2548
fax (803) 296-2548
Additional location
7 Independence PT Ste 300
Greenville, SC 296154569
(864) 522-3700
Mailing address
300 E McBee Ave Fl 4
Greenville, SC 296012842

Credentials & registration

NPPES · NUCC
NPI registered
April 2006 — 20 yrs on file
Profile last updated
January 27, 2022
Specialty taxonomy
367500000X — NUCC code
State license (1)
South Carolina #1645
Medicaid
SC #AN1241

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1487611182. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
41
Distinct HCPCS
3
Medicare allowed
$6,704
HCPCS Description Services Patients Avg allowed
01630 Anesthesia for other procedure on top of arm bone and shoulder joint 16 16 $196
01830 Anesthesia for other procedure on forearm, wrist, or hand bones 13 13 $160
01810 Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand 12 12 $124

In context: peer comparison

Among 34 peers in Columbia Certified Registered Nurse Anesthetist, average services per provider: 55. This provider delivers 0.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$37
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Peerless Surgical INC. 1 $36.57

By nature of payment

Food and Beverage
$37

Frequently asked questions

Auto-generated from federal data
What is Dr. Tammy Williamson's medical specialty?
Dr. Tammy Williamson practices Certified Registered Nurse Anesthetist in Columbia, SC.
Where does Dr. Tammy Williamson practice?
Dr. Tammy Williamson practices at 5 Medical Park, Columbia, SC 29203. Office phone: 8032962548.
What is Dr. Tammy Williamson's NPI?
Dr. Tammy Williamson's National Provider Identifier (NPI) is 1487611182, issued by NPPES.
What procedures does Dr. Tammy Williamson commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on top of arm bone and shoulder joint (HCPCS 01630); Anesthesia for other procedure on forearm, wrist, or hand bones (HCPCS 01830); Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (HCPCS 01810). Source: CMS Medicare Physician & Other Practitioners file.