DR. MONIKA DIAZ PHD
NPI 1326884347
Psychologist - Clinical in Round Rock, TX

Q: What is Monika Diaz's NPI number?

The NPI number for Monika Diaz is 1326884347. It was assigned to this individual provider in the NPPES registry on July 9, 2024.

Q: What is Monika Diaz's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Monika Diaz was last updated on December 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 July 09, 2024PECOS Enrolled

2631 GATTIS SCHOOL RD STE 405, ROUND ROCK, TX 78664(737) 320-8109 Get Directions Write a Review

NPPES record last updated: December 15, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 15, 2025, Jul 9, 2024 (2 updates tracked since 2024).

On this page

About Dr. Monika Diaz Phd NPPES

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

DR. MONIKA DIAZ PHD (NPI 1326884347) is an individual clinical provider in Round Rock, Texas, licensed in Texas (41036) and active in the NPI registry since July 2024. She is enrolled in Medicare PECOS and is a graduate of Other (2025).

NPPES Registry Identity

NPI1326884347

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. MONIKA DIAZCredential: PHD

Location Address2631 GATTIS SCHOOL RD STE 405Round Rock, TX 78664-2822

Mailing Address2631 Gattis School Rd Ste 405Round Rock, TX 78664-2822 · (737) 320-8109

Phone(737) 320-8109

Sole ProprietorYes

Medical School CMSOtherGraduated 2025

Enumeration DateJuly 9, 2024

Last NPPES UpdateDecember 15, 20252 updates tracked since enumeration

NPPES CertifiedDecember 15, 2025

✔ NPI 1326884347 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in TX · 41036

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

2631 GATTIS SCHOOL RD STE 405, Round Rock, TX 78664

Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Monika Diaz Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6002385788

PECOS Enrollment IDI20260519003959

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78664 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$166.88 typical visit price

range $54.84 – $166.88

Typical copayment $41.72 (range $13.71 – $41.72)

Most-billed visit code 99205

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PERKINS PSYCARE CLINIC PLLC

Psychologist (Clinical)

2631 GATTIS SCHOOL RD STE 405
ROUND ROCK, TX 78664

Williamson County (737) 394-5211

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 Monika Diaz's NPI number?

The NPI number for Monika Diaz is 1326884347. It was assigned to this individual provider in the NPPES registry on July 9, 2024.

Where is Monika Diaz located?

Monika Diaz practices at 2631 Gattis School Rd Ste 405, Round Rock, TX 78664. The listed phone number is (737) 320-8109.

What is Monika Diaz's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Monika Diaz enrolled in Medicare?

Yes. Monika Diaz is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Monika Diaz was last updated on December 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.