Doctor profile · Federal record

Dr. Thomas Gianis, M.D.

Vascular Surgery Physician (CMS: Vascular Surgery) · Student in an Organized Health Care Education/Training Program · San Antonio, TX

  • NPI 1467895375
  • Accepts Medicare
  • MIPS 0.0 / 100 · 2023
  • 13 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
603 E Amber St Ste 101
San Antonio, TX 782212456
(210) 610-7283
fax (210) 812-5938
Additional location
1215 Lee St
Charlottesville, VA 229080001
(434) 924-2150
Mailing address
Po Box 91257
San Antonio, TX 782099098

Credentials & registration

NPPES · NUCC
NPI registered
April 2013 — 13 yrs on file
Profile last updated
November 29, 2021
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
2086S0129X — NUCC code
State license (1)
Texas #T2607

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1467895375. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,397
Distinct HCPCS
10
Medicare allowed
$143,404
HCPCS Description Services Patients Avg allowed
93922 Ultrasound study of arm and leg arteries 302 239 $67
99213 Established patient office or other outpatient visit, 20-29 minutes 262 189 $85
93926 Ultrasound of one leg arteries or artery grafts 126 109 $118
99204 New patient office or other outpatient visit, 45-59 minutes 81 81 $161
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 74 34 $76
93880 Ultrasound of both sides of head and neck blood flow 56 53 $181
99215 Established patient office or other outpatient visit, 40-54 minutes 42 35 $171
93971 Ultrasound study of one arm or leg veins with compression and maneuvers 34 29 $112
93979 Ultrasound of aorta, vena cava, groin vessels or bypass grafts 33 18 $94
93970 Ultrasound study of arm or leg veins with compression and maneuvers 32 32 $181

In context: peer comparison

Among 15 peers in San Antonio Vascular Surgery Physician, average services per provider: 117. This provider delivers 12× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$3,501
Transactions
13
Manufacturers
10
Payer (manufacturer) Industry Txns Amount
AngioDynamics, INC. 1 $2,625.00
ShockWave Medical, INC 2 $257.32
Medtronic, INC. 1 $187.46
Siemens Medical Solutions USA, INC. 1 $137.20
Philips North America LLC 3 $107.88
Innovation Technologies INC 1 $67.39
Boston Scientific Corporation 1 $46.48
Tactile Systems Technology INC 1 $35.16
Janssen Pharmaceuticals, INC 1 $27.11
CashFlow Solutions, LLC 1 $9.57

By nature of payment

Long Term Medical Supply or Device Loan
$2,625
Food and Beverage
$876

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
232
Patients
132
Total drug cost
$21,289
Drug Type Claims Patients Total cost
Clopidogrel (Clopidogrel Bisulfate) Brand 94 36 $1,179
Doxycycline Hyclate Generic 50 43 $879
Atorvastatin Calcium Generic 46 22 $418
Acetaminophen-Codeine (Acetaminophen With Codeine) Brand 24 20 $150
Xarelto (Rivaroxaban) Brand 18 11 $18,663

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Gianis's medical specialty?
Dr. Thomas Gianis practices Vascular Surgery Physician in San Antonio, TX.
Where does Dr. Thomas Gianis practice?
Dr. Thomas Gianis practices at 603 E Amber St Ste 101, San Antonio, TX 782212456. Office phone: 2106107283.
What is Dr. Thomas Gianis's NPI?
Dr. Thomas Gianis's National Provider Identifier (NPI) is 1467895375, issued by NPPES.
Does Dr. Thomas Gianis accept Medicare assignment?
Yes. Dr. Thomas Gianis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Gianis commonly perform?
Top Medicare-reported procedures in 2023: Ultrasound study of arm and leg arteries (HCPCS 93922); Established patient office or other outpatient visit (HCPCS 99213); Ultrasound of one leg arteries or artery grafts (HCPCS 93926). Source: CMS Medicare Physician & Other Practitioners file.