Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mrs. Cassandra Lanelle Collier, LCSW

Individual provider Clinical Social Worker · NPI 1518303940

Mrs. Cassandra Lanelle Collier, LCSW is a Clinical Social Worker in Amarillo, Texas. Qualified in 2005, 21 years ago. Practices with Deer Oaks Geriatric Services P C, a 43-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
21
Licensed in
TX
In the registry since
2013
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

12001 Tanglewood Rd
Amarillo, TX 79118-0351
Phone: (254) 855-3297
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 41078 (TX)

Record details

NPI number1518303940
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedMay 13, 2013
Last updated in NPPESSeptember 15, 2026
Certification dateSeptember 15, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Deer Oaks Geriatric Services P C — 43 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients51
Services billed 632 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Deer Oaks Geriatric Services P C

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 43 clinicians in the practice; 12 are shown here.

Other providers in Amarillo