TEXAS TECH UNIVERSITY HEALTH SCIENCES CENTER AMARILLO
NPI 1871525840
Internal Medicine in Amarillo, TX

Q: What is Texas Tech University Health Sciences Center Amarillo's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since July 07, 2006

1400 S COULTER ST, AMARILLO, TX 79106(808) 414-9100(806) 354-5717 Get Directions Write a Review

NPPES record last updated: April 15, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 6, 2023, Dec 8, 2021, Apr 22, 2020 (3 updates tracked since 2020).

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About Texas Tech University Health Sciences Center Amarillo NPPES

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

TEXAS TECH UNIVERSITY HEALTH SCIENCES CENTER AMARILLO (NPI 1871525840), doing business as Texa Tech Uhsc Internal Medicine, is a healthcare organization registered as an internal medicine in Amarillo, Texas and active in the NPI registry since July 2006. The organization lists April Almond-diaz, Asst Dean Of Finance & Admin, as its authorized official.

NPPES Registry Identity

NPI1871525840

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameTEXAS TECH UNIVERSITY HEALTH SCIENCES CENTER AMARILLO

Location Address1400 S COULTER STAmarillo, TX 79106-1786

Mailing Address1400 S Coulter StAmarillo, TX 79106-1786 · (806) 414-9562 · Fax (806) 356-4673

Phone(808) 414-9100

Fax(806) 354-5717

Organization SubpartNo

Authorized OfficialApril Almond-diazAsst Dean Of Finance & Admin · (806) 414-9996

Enumeration DateJuly 7, 2006

Last NPPES UpdateApril 15, 20253 updates tracked since enumeration

NPPES CertifiedApril 15, 2025

✔ NPI 1871525840 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedClinical Medical LaboratoryTaxonomy 291U00000X

1400 S COULTER ST, Amarillo, TX 79106

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Other Names 1

Doing Business AsTexa Tech Uhsc Internal Medicine

Other Identifiers 3

MedicaidG4070NM

Medicaid084563802TX

Medicaid100759180BOK

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Texas Tech University Health Sciences Center Amarillo is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 28 clinicians reassign Medicare billing to Texas Tech University Health Sciences Center Amarillo, which bills Medicare for the services they deliver. Of these, 9 practice at this address and 27 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 7

Internal Medicine11

Nurse Practitioner6

Hospitalist4

Pulmonary Disease4

Endocrinology1

Infectious Disease1

Nephrology1

Nearest to this location (20)

See all 28

Todd Bell, MD

Internal Medicine

NPI 1093747156

1400 S COULTER
Amarillo, TX 79106

(806) 354-5660

✔ PECOS✔ Accepts MedicareSame address

James Walker, MD

Internal Medicine

NPI 1144205568

1400 S COULTER ST
Amarillo, TX 79106

(806) 414-9100

✔ PECOS✔ Accepts MedicareSame address

Hayder Yasir, M.D.

Hospitalist

NPI 1144674144

1400 S COULTER ST
Amarillo, TX 79106

(806) 414-9100

✔ PECOS✔ Accepts MedicareSame address

Rahul Chandra, M.D.

Internal Medicine

NPI 1992925366

1400 S COULTER ST
Amarillo, TX 79106

(806) 414-9100

✔ PECOS✔ Accepts MedicareSame address

Karen Cutts, MD

Internal Medicine

NPI 1467484675

1400 S COULTER ST
Amarillo, TX 79106

(806) 414-9100

✔ PECOS✔ Accepts MedicareSame address

Mary Ibarra, AGACNP-BC

Nurse Practitioner

NPI 1194277665

1400 S COULTER ST
Amarillo, TX 79106

(806) 414-9100

✔ PECOS✔ Accepts MedicareSame address

Asm Islam, M.D.

Internal Medicine

NPI 1477870707

1400 S COULTER ST
Amarillo, TX 79106

(806) 414-9100

✔ PECOS✔ Accepts MedicareSame address

Bharat Khandheria, MD

Internal Medicine

NPI 1831120450

1400 S COULTER ST
Amarillo, TX 79106

(806) 414-9100

✔ PECOS✔ Accepts MedicareSame address

Harold Werner, MD

Internal Medicine

NPI 1467484667

1400 S COULTER ST
Amarillo, TX 79106

(806) 414-9100

✔ PECOS✔ Accepts MedicareSame address

Terri Carroll, N.P.

Nurse Practitioner

NPI 1912297946

1400 S COULTER ST
Amarillo, TX 79106

(806) 414-9608

✔ PECOS✔ Accepts Medicare0.1 mi

Virginie Zebaze

Nurse Practitioner

NPI 1891518254

1400 S COULTER ST
Amarillo, TX 79106

(806) 414-9100

✔ PECOS✔ Accepts Medicare0.1 mi

Griselda Camacho, M.D.

Hospitalist

NPI 1659638344

1400 S COULTER ST
Amarillo, TX 79106

(806) 414-9100

✔ PECOS✔ Accepts Medicare0.1 mi

Abhijit Gutal, M.D.

Internal Medicine

NPI 1871947580

1400 S COULTER ST SUITE 2500
Amarillo, TX 79106

(806) 414-9100

✔ PECOS✔ Accepts Medicare0.1 mi

John Milton, MD

Infectious Disease

NPI 1033155312

1400 S COULTER ST
Amarillo, TX 79106

(806) 354-5480

✔ PECOS0.1 mi

Ahmed Qasim, M.D.

Internal Medicine

NPI 1457705428

1400 S COULTER ST SUITE 2500
Amarillo, TX 79106

(806) 414-9100

✔ PECOS✔ Accepts Medicare0.1 mi

Omar Salh, M.D.

Hospitalist

NPI 1275929127

1400 S COULTER ST
Amarillo, TX 79106

(806) 414-9608

✔ PECOS0.1 mi

Kishore Yalamanchili, MD

Pulmonary Disease

NPI 1073544623

1400 S COULTER ST
Amarillo, TX 79106

(806) 414-9100

✔ PECOS✔ Accepts Medicare0.1 mi

Stephen Usala, MD PHD

Endocrinology

NPI 1992879563

1215 S COULTER ST STE 405
Amarillo, TX 79106

(806) 358-8437

✔ PECOS✔ Accepts Medicare0.2 mi

Tarek Naguib, M.D.

Nephrology

NPI 1548236813

1215 S COULTER ST SUITE 404
Amarillo, TX 79106

(806) 358-8477

✔ PECOS✔ Accepts Medicare0.2 mi

Mark Sigler, M.D.

Pulmonary Disease

NPI 1578799946

6700 W 9TH AVE
Amarillo, TX 79106

(806) 358-0200

✔ PECOS✔ Accepts Medicare0.9 mi

See all 28 clinicians

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

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 Texas Tech University Health Sciences Center Amarillo's NPI number?

The NPI number for Texas Tech University Health Sciences Center Amarillo is 1871525840. It was assigned to this organization in the NPPES registry on July 7, 2006. The provider is doing business as Texa Tech UHSC Internal Medicine.

Where is Texas Tech University Health Sciences Center Amarillo located?

Texas Tech University Health Sciences Center Amarillo is located at 1400 S Coulter St, Amarillo, TX 79106. The listed phone number is (808) 414-9100.

What is Texas Tech University Health Sciences Center Amarillo's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Texas Tech University Health Sciences Center Amarillo enrolled in Medicare?

Yes. Texas Tech University Health Sciences Center Amarillo is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Texas Tech University Health Sciences Center Amarillo?

According to the CMS Revalidation Reassignment List (October 2026 release), 28 clinicians in 7 Medicare specialties reassign their Medicare billing to Texas Tech University Health Sciences Center Amarillo. A 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 the clinician's services. The largest specialties are Internal Medicine (11), Nurse Practitioner (6) and Hospitalist (4). Of these, 9 practice at this address and 27 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Texas Tech University Health Sciences Center Amarillo accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 1 other insurer list Texas Tech University Health Sciences Center Amarillo 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.

When was this NPI record last updated?

The NPPES record for Texas Tech University Health Sciences Center Amarillo was last updated on April 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.