Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Hallmark Psychological Services, PLLC

Organization Mental Health Clinic/Center (Including Community Mental Health Center) · NPI 1780455493

Hallmark Psychological Services, PLLC is a Mental Health Clinic/Center (Including Community Mental Health Center) in Houston, Texas. Registered with an NPI since 2024.

In the registry since
2024
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1901 Post Oak Park Dr Apt 8201
Houston, TX 77027-3373
Phone: (917) 509-5103
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Clinic/Center (Including Community Mental Health Center) (primary) Taxonomy 261QM0801X

Record details

NPI number1780455493
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Charles Hallmark — Psychologist · (917) 509-5103
Other names Hallmark Psychological Services
NPI enumeratedJanuary 11, 2024
Last updated in NPPESJanuary 11, 2024
Certification dateJanuary 11, 2024
Mailing address1901 Post Oak Park Dr # 201, Houston, TX 77027-3323

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