Doctor profile · Federal record

Dr. William Parker, M.D.

Surgery Physician (CMS: General Surgery) · San Antonio, TX

  • NPI 1295778686
  • Accepts Medicare
  • MIPS 73.0 / 100 · 2023
  • 37 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
19016 Stone Oak Pkwy Ste 180
San Antonio, TX 782583281
(866) 552-4866
Mailing address
8135 Forest Ln # 515057
Dallas, TX 752302472

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
March 12, 2024
Year of graduation
1989 — 37 yrs since
Specialty taxonomy
208600000X — NUCC code
State license (1)
Texas #H8309

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1295778686. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,661
Distinct HCPCS
10
Medicare allowed
$863,715
HCPCS Description Services Patients Avg allowed
93970 Ultrasound study of arm or leg veins with compression and maneuvers 424 252 $179
36478 Laser destruction of incompetent vein of arm or leg using imaging guidance 343 159 $934
99213 Established patient office or other outpatient visit, 20-29 minutes 219 148 $86
36479 Laser destruction of incompetent veins of arm or leg using imaging guidance, subsequent 157 94 $286
36475 Destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance 152 99 $1,103
93971 Ultrasound study of one arm or leg veins with compression and maneuvers 148 89 $113
36466 Injection of chemical agent into multiple incompetent veins of same leg using ultrasound guidance 91 64 $1,394
36465 Injection of chemical agent into single incompetent vein of leg using ultrasound guidance 67 54 $1,217
99204 New patient office or other outpatient visit, 45-59 minutes 30 30 $160
36476 Destruction of subsequent incompetent veins of arm or leg using radiofrequency and imaging guidance 18 16 $271

In context: peer comparison

Among 32 peers in San Antonio Surgery Physician, average services per provider: 43. This provider delivers 39× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$9,902
Transactions
11
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
AngioDynamics, INC. 5 $9,623.99
Boston Scientific Corporation 3 $186.90
Mission Medical Distribution, LLC 1 $62.13
Tactile Systems Technology INC 1 $18.80
CashFlow Solutions, LLC 1 $10.15

By nature of payment

Long Term Medical Supply or Device Loan
$9,600
Food and Beverage
$302

Frequently asked questions

Auto-generated from federal data
What is Dr. William Parker's medical specialty?
Dr. William Parker practices Surgery Physician in San Antonio, TX.
Where does Dr. William Parker practice?
Dr. William Parker practices at 19016 Stone Oak Pkwy Ste 180, San Antonio, TX 782583281. Office phone: 8665524866.
What is Dr. William Parker's NPI?
Dr. William Parker's National Provider Identifier (NPI) is 1295778686, issued by NPPES.
Does Dr. William Parker accept Medicare assignment?
Yes. Dr. William Parker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Parker commonly perform?
Top Medicare-reported procedures in 2023: Ultrasound study of arm or leg veins with compression and maneuvers (HCPCS 93970); Laser destruction of incompetent vein of arm or leg using imaging guidance (HCPCS 36478); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.