ALEXANDER THAI M.D.
NPI 1871955658
Emergency Medicine in Fort Sam Houston, TX

Q: What is Alexander Thai's NPI number?

The NPI number for Alexander Thai is 1871955658. It was assigned to this individual provider in the NPPES registry on March 22, 2016.

Q: What is Alexander Thai's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Alexander Thai was last updated on August 23, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 22, 2016PECOS EnrolledAccepts Medicare Assignment

3551 ROGER BROOKE DR, FORT SAM HOUSTON, TX 78234(312) 429-5996 Get Directions Write a Review

NPPES record last updated: August 23, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 23, 2019, Mar 22, 2016 (2 updates tracked since 2016).

On this page

About Alexander Thai M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALEXANDER THAI M.D. (NPI 1871955658) is an individual emergency medicine provider in Fort Sam Houston, Texas, licensed in Texas (ME138142) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with Texoma Medical Center, and is a graduate of University Of Louisville School Of Medicine (2016).

NPPES Registry Identity

NPI1871955658

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameALEXANDER THAICredential: M.D.

Location Address3551 ROGER BROOKE DRFort Sam Houston, TX 78234-4504

Mailing Address239 N Center St Unit 371San Antonio, TX 78202-0007

Phone(312) 429-5996

Sole ProprietorNo

Medical School CMSUniversity Of Louisville School Of MedicineGraduated 2016

Enumeration DateMarch 22, 2016

Last NPPES UpdateAugust 23, 20192 updates tracked since enumeration

✔ NPI 1871955658 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in TX · ME138142

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

3551 ROGER BROOKE DR, Fort Sam Houston, TX 78234

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Health, Oscar Insurance Company and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Alexander Thai M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3678906500

PECOS Enrollment IDI20200114002195

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Alexander Thai reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Victoria Emergency Partners LLC

125 mi

Emergency Medicine

1110 N SARAH DEWITT DR
Gonzales, TX 78629

Reassigned Medicare billing, Texas enrollment
430 clinicians in this Medicare group

NPI 1164770996 (830) 672-7581

Comal Emergency Physicians, PLLC

154 mi

Emergency Medicine

1301 WONDER WORLD DR
San Marcos, TX 78666

Reassigned Medicare billing, Texas enrollment
137 clinicians in this Medicare group

NPI 1588438675 (512) 353-8979

Ies Central Texas PLLC

182 mi

Emergency Medicine

101 CIRCLE DR
Hillsboro, TX 76645

Reassigned Medicare billing, Texas enrollment
127 clinicians in this Medicare group

NPI 1003523002 (254) 580-8500

Emergency Medicine Services Of Tx, PLLC

193 mi

Emergency Medicine

7700 FLOYD CURL DR
San Antonio, TX 78229

Reassigned Medicare billing, Texas enrollment
1,452 clinicians in this Medicare group

NPI 1245938729 (210) 575-4000

Bexar Emergency Physicians, PLLC

194 mi

Emergency Medicine

2827 BABCOCK RD
San Antonio, TX 78229

Reassigned Medicare billing, Texas enrollment
149 clinicians in this Medicare group

NPI 1548034994 (210) 705-6300

Century Integrated Partners, Inc

221 mi

Emergency Medicine

3500 GASTON AVE
Dallas, TX 75246

Reassigned Medicare billing, Texas enrollment
1,044 clinicians in this Medicare group

NPI 1447615711 (214) 820-2505

Texas Medicine Resources, LLP

230 mi

Emergency Medicine

6451 BRENTWOOD STAIR RD, SUITE 200
Fort Worth, TX 76112

Reassigned Medicare billing, Texas enrollment
545 clinicians in this Medicare group

NPI 1376581900 (817) 496-9700

Level One Emergency Physicians LLC

277 mi

Emergency Medicine

5016 S US HIGHWAY 75
Denison, TX 75020

Reassigned Medicare billing, Texas enrollment
67 clinicians in this Medicare group

NPI 1528790193 (903) 416-4000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

307 services291 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

178 services175 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

171 services168 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

56 services54 patients

Emergency department visit with low level of medical decision making 99283

An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.

23 services23 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Texoma Medical Center

Acute Care Hospitals · Denison, TX

3/5 CMS rating

OwnershipProprietary

CMS Certification Number450324

Location5016 S Us Highway 75Denison, TX 75020 · Grayson County

Emergency services Birthing friendly

Baylor Emergency Medical Center At Aubrey

Acute Care Hospitals · Aubrey, TX

OwnershipProprietary

CMS Certification Number670062

Location26791 Highway 380Aubrey, TX 76227 · Denton County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78234 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$84.92 typical visit price

range $54.84 – $166.88

Typical copayment $21.23 (range $13.71 – $41.72)

Most-billed visit code 99203

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

2 suppliers12 claims12 services$907.03 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JANET JONES SIMS CRNA

Nurse Anesthetist, Certified Registered

3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234

Bexar County (253) 223-6272

JAMES KENNEDY HARDIN PA-C

Physician Assistant

3551 ROGER BROOKE DR
JBSA FT SAM HOUSTON, TX 78234

Bexar County (210) 295-4996

DR. DANIEL VICTOR-CALVIN HAMMOND M.D.

Pediatrics (Pediatric Endocrinology)

3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234

Bexar County (210) 916-3020

JESSICA FULLER LCSW

Social Worker (Clinical)

3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234

Bexar County (210) 808-1859

DR. JASON ROBERT HALL M.D.

Neurological Surgery

3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234

Bexar County (210) 539-9582

MRS. KATHRYN ELAINE HELLAND LCSW

Social Worker (Clinical)

3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234

Bexar County (210) 539-9582

DR. HALWARD BLEGEN IV DO

Ophthalmology

3551 ROGER BROOKE DR
JBSA FORT SAM HOUSTON, TX 78234

Bexar County (210) 220-7419

KOLE HOLLAND SPAULDING M.D.

Emergency Medicine (Emergency Medical Services)

3551 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234

Bexar County (210) 539-9582

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alexander Thai's NPI number?

The NPI number for Alexander Thai is 1871955658. It was assigned to this individual provider in the NPPES registry on March 22, 2016.

Where is Alexander Thai located?

Alexander Thai practices at 3551 Roger Brooke Dr, Fort Sam Houston, TX 78234. The listed phone number is (312) 429-5996.

What is Alexander Thai's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Alexander Thai enrolled in Medicare?

Yes. Alexander Thai is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Alexander Thai's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Thai reassigns Medicare benefits to 8 organizations: Victoria Emergency Partners LLC (Gonzales, TX), Comal Emergency Physicians, PLLC (San Marcos, TX), Ies Central Texas PLLC (Hillsboro, TX), Emergency Medicine Services Of Tx, PLLC (San Antonio, TX), Bexar Emergency Physicians, PLLC (San Antonio, TX) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alexander Thai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alexander Thai accept?

Health plans from Blue Cross and Blue Shield of Texas, Oscar Health, Oscar Insurance Company and UnitedHealthcare list Alexander Thai as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Alexander Thai affiliated with any hospitals?

According to CMS data, Alexander Thai is affiliated with Texoma Medical Center and Baylor Emergency Medical Center At Aubrey.

When was this NPI record last updated?

The NPPES record for Alexander Thai was last updated on August 23, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.