Doctor profile · Federal record

Dr. Alexander Thai, M.D.

Emergency Medicine Physician (CMS: Emergency Medicine) · Fort Sam Houston, TX

  • NPI 1871955658
  • Accepts Medicare
  • 10 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3551 Roger Brooke Dr
Fort Sam Houston, TX 782344504
(312) 429-5996
Mailing address
239 N Center St Unit 371
San Antonio, TX 782020007

Credentials & registration

NPPES · NUCC
NPI registered
March 2016 — 10 yrs on file
Profile last updated
August 23, 2019
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Texas #ME138142

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1871955658. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
552
Distinct HCPCS
5
Medicare allowed
$82,992
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 243 238 $172
99291 Critical care, first 30-74 minutes 128 126 $208
99284 Emergency department visit with moderate level of medical decision making 110 110 $118
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 53 53 $8
99283 Emergency department visit with low level of medical decision making 18 16 $70

In context: peer comparison

Among 17 peers in Fort Sam Houston Emergency Medicine Physician, average services per provider: 73. This provider delivers 7.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$253
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Inari Medical, INC. 1 $169.63
Abiomed 1 $83.04

By nature of payment

Food and Beverage
$253

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
222
Patients
221
Total drug cost
$2,533
Drug Type Claims Patients Total cost
Prednisone Generic 56 55 $101
Ondansetron Hcl Generic 23 23 $99
Ondansetron Odt (Ondansetron) Brand 19 19 $134
Ibuprofen Generic 17 17 $75
Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) Brand 15 15 $231
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 14 14 $140
Cephalexin Generic 14 14 $138
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 14 14 $108
Cefpodoxime Proxetil Generic 13 13 $1,172
Cyclobenzaprine Hcl Generic 13 13 $35

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alexander Thai's medical specialty?
Dr. Alexander Thai practices Emergency Medicine Physician in Fort Sam Houston, TX.
Where does Dr. Alexander Thai practice?
Dr. Alexander Thai practices at 3551 Roger Brooke Dr, Fort Sam Houston, TX 782344504. Office phone: 3124295996.
What is Dr. Alexander Thai's NPI?
Dr. Alexander Thai's National Provider Identifier (NPI) is 1871955658, issued by NPPES.
Does Dr. Alexander Thai accept Medicare assignment?
Yes. Dr. Alexander Thai accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alexander Thai commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Critical care (HCPCS 99291); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.