Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Malissa Williams

Behavior Technician β€’ San Antonio, TX

Active NPI 1609634401 Individual Practitioner Female Practitioner
Practice location in NPPES

6419 W Loop 1604 N Ste 108
San Antonio, TX 782545764

Call 8552237123 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

6419 W Loop 1604 N Ste 108

San Antonio, TX 782545764

Telephone 8552237123
Fax 6193747134
Organization at the Same NPPES Address or Phone
Aces 2020, Llc Facility NPI 1003778267

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in San Antonio, TX. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

NPI first issued

2024

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Compared with the same specialty in San Antonio and Texas

2,758 active clinicians are listed under Behavior Technician with a practice address in San Antonio, TX (25,161 in Texas).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in San Antonio

0% of these 2,758 clinicians have the CMS telehealth indicator.

0% of these 2,758 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2026-07-23
Behavior Technician Primary Specialty

NUCC Taxonomy Code: 106S00000X

The behavior technician is a paraprofessional who practices under the close, ongoing supervision of a behavior analyst or assistant behavior analyst certified by the Behavior Analyst Certification Board and/or credentialed by a state (such as through licensure). The behavior technician is primarily responsible for the implementation of components of behavior-analytic treatment plans developed by the supervisor. That may include collecting data on treatment targets and conducting certain types of behavioral assessments (e.g., stimulus preference assessments). The behavior technician does not design treatment or assessment plans or procedures but provides services as assigned by the supervisor responsible for his or her work.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Texas Medical Board.
Look Up on State Board Site

Secondary Practice Locations

6511 W Loop 1604 N Ste 123

San Antonio, TX 782545440

Phone: 8552237123

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

9 Historical Events
πŸ“
Updated Practice Location February 26, 2026

Registered at 6419 W LOOP 1604 N STE 108, SAN ANTONIO, TX 782545764 (Tel: 8552237123)

πŸ“
Updated Business Mailing Address February 26, 2026

Registered at PO BOX 740780, ATLANTA, GA 303740780 (Tel: 8552237123)

πŸ“
Updated Practice Location May 30, 2024

Registered at 2450 MARTIN RD # 100, FAIRFIELD, CA 945341018 (Tel: 8552237123)

βœ…
NPI Profile Active March 07, 2024

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) March 07, 2024

Registered at 801 JEFFERSON ST STE 4&35&6, FAIRFIELD, CA 945335557 (Tel: 8552237123)

πŸ“
Business Mailing Address (Initial Record) March 07, 2024

Registered at PO BOX 33568, SAN DIEGO, CA 921633568 (Tel: 8552237123)

πŸ‘€
Provider Name / Credentials (Initial Record) March 07, 2024

Recorded as MALISSA WILLIAMS

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 07, 2024

Behavior Technician

🟒
Initial NPI Registration & Enumeration March 07, 2024

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1609634401
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 07, 2024
Last Update: July 23, 2026
Sole Proprietor: No

Mailing Address

Po Box 740780

Atlanta, GA 303740780

Phone: 8552237123

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.