1. Home
  2. Directory
  3. Texas
  4. Houston
  5. Nurse Practitioner
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

CALMISTRY MENTAL HEALTH LLC
NPI 1811843758
Nurse Practitioner - Psychiatric/Mental Health in Houston, TX

Active since March 04, 2026
440 LOUISIANA ST STE 900, HOUSTON, TX 77002(281) 683-5478 Get Directions Write a Review

NPPES record last updated: August 12, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 12, 2026, Mar 4, 2026 (2 updates tracked since 2026).

About Calmistry Mental Health Llc NPPES

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

CALMISTRY MENTAL HEALTH LLC (NPI 1811843758) is a healthcare organization registered as a psychiatric/mental health in Houston, Texas and active in the NPI registry since March 2026. The organization lists Tonya Williams, Owner, as its authorized official.

NPPES Registry Identity

NPI1811843758
Entity TypeOrganization
Primary Taxonomy363LP0808X
Legal Business NameCALMISTRY MENTAL HEALTH LLC
Location Address440 LOUISIANA ST STE 900Houston, TX 77002-1062
Mailing Address440 Louisiana St Ste 900Houston, TX 77002-1062 · (346) 898-3720
Phone(281) 683-5478
Organization SubpartNo
Authorized OfficialTonya WilliamsOwner · (346) 898-3720
Enumeration DateMarch 4, 2026
Last NPPES UpdateAugust 12, 20262 updates tracked since enumeration
NPPES CertifiedAugust 12, 2026
✔ NPI 1811843758 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
440 LOUISIANA ST STE 900, Houston, TX 77002
Open in Google Maps ↗

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

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.

BRITTNEY A WILLIAMS M.D.
Obstetrics & Gynecology
440 LOUISIANA ST STE 900
HOUSTON, TX 77002
Harris County (904) 586-1964
ANDREA LYNN MCCOY NP
Nurse Practitioner (Gerontology)
440 LOUISIANA ST STE 900
HOUSTON, TX 77002
Harris County (914) 432-2166
RESTORATION GLOBAL HEALTH CARE LLC
Technician (Personal Care Attendant)
440 LOUISIANA ST STE 900
HOUSTON, TX 77002
Harris County (832) 498-2430
MARQUETA JOHNSON CPHT
Non-emergency Medical Transport (VAN)
440 LOUISIANA ST STE 900
HOUSTON, TX 77002
Harris County (281) 436-9795
KUPONYA TELEPSYCHIATRY, LLC
Nurse Practitioner (Psychiatric/Mental Health)
440 LOUISIANA ST STE 900
HOUSTON, TX 77002
Harris County (888) 616-4946
STARLING INTERESTS LLC
Clinic/Center (Urgent Care)
440 LOUISIANA ST STE 900
HOUSTON, TX 77002
Harris County (833) 782-7468
LEVY ENTERPRISE LLC
Durable Medical Equipment & Medical Supplies (Customized Equipment)
440 LOUISIANA ST STE 900
HOUSTON, TX 77002
Harris County (866) 577-2267
P T CARRIER GROUP LLC
Non-emergency Medical Transport (VAN)
440 LOUISIANA ST STE 900
HOUSTON, TX 77002
Harris County (844) 851-6777

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 Calmistry Mental Health LLC's NPI number?

The NPI number for Calmistry Mental Health LLC is 1811843758. It was assigned to this organization in the NPPES registry on March 4, 2026.

Where is Calmistry Mental Health LLC located?

Calmistry Mental Health LLC is located at 440 Louisiana St Ste 900, Houston, TX 77002. The listed phone number is (281) 683-5478.

What is Calmistry Mental Health LLC's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

When was this NPI record last updated?

The NPPES record for Calmistry Mental Health LLC was last updated on August 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days 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.