CASSANDRA MARKHAM
NPI 1679440325
Nurse Practitioner in Amarillo, TX

Q: What is Cassandra Markham's NPI number?

The NPI number for Cassandra Markham is 1679440325. It was assigned to this individual provider in the NPPES registry on October 18, 2025.

Q: What is Cassandra Markham's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Cassandra Markham was last updated on April 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since October 18, 2025

2483 W INTERSTATE 40, AMARILLO, TX 79109(806) 463-3200(806) 463-3179 Get Directions Write a Review

NPPES record last updated: April 4, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Cassandra Markham NPPES

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

CASSANDRA MARKHAM (NPI 1679440325) is an individual nurse practitioner in Amarillo, Texas, licensed in Texas (833761) and active in the NPI registry since October 2025.

NPPES Registry Identity

NPI1679440325

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameCASSANDRA MARKHAM

Location Address2483 W INTERSTATE 40Amarillo, TX 79109-1852

Mailing Address2483 W Interstate 40Amarillo, TX 79109-1852 · (806) 463-3200 · Fax (806) 463-3179

Phone(806) 463-3200

Fax(806) 463-3179

Sole ProprietorNo

Enumeration DateOctober 18, 2025

Last NPPES UpdateApril 4, 2026

NPPES CertifiedApril 4, 2026

✔ NPI 1679440325 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in TX · 833761

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

2483 W INTERSTATE 40, Amarillo, TX 79109

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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 Cassandra Markham's NPI number?

The NPI number for Cassandra Markham is 1679440325. It was assigned to this individual provider in the NPPES registry on October 18, 2025.

Where is Cassandra Markham located?

Cassandra Markham practices at 2483 W Interstate 40, Amarillo, TX 79109. The listed phone number is (806) 463-3200.

What is Cassandra Markham's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

When was this NPI record last updated?

The NPPES record for Cassandra Markham was last updated on April 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.