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DR. THADDEUS MARTIN COX LPC-S, LPA, PHD, LP
NPI 1346573128
Psychologist - Clinical in Austin, TX

Active since September 11, 2009PECOS EnrolledAccepts Medicare Assignment
4202 TULE CV, AUSTIN, TX 78749(415) 812-0263(972) 966-2375 Get Directions Write a Review

NPPES record last updated: April 29, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Apr 29, 2026, Aug 7, 2025, Feb 21, 2025 and 1 more (4 updates tracked since 2025).

About Dr. Thaddeus Martin Cox Lpc-s, Lpa, Phd, Lp NPPES

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

DR. THADDEUS MARTIN COX LPC-S, LPA, PHD, LP (NPI 1346573128) is an individual clinical provider in Austin, Texas, licensed in California (35694) and active in the NPI registry since September 2009. He is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1346573128
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. THADDEUS MARTIN COXCredential: LPC-S, LPA, PHD, LP
Location Address4202 TULE CVAustin, TX 78749-3822
Mailing Address4202 Tule CvAustin, TX 78749-3822 · (415) 812-0263
Phone(415) 812-0263
Fax(972) 966-2375
Sole ProprietorYes
Medical School CMSOtherGraduated 2017
Enumeration DateSeptember 11, 2009
Last NPPES UpdateApril 29, 20264 updates tracked since enumeration
NPPES CertifiedApril 29, 2026
✔ NPI 1346573128 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
Licenses✔ Licensed in CA · 35694✔ Licensed in VT · 048.0135210TELE
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.
Also ListedCounselorTaxonomy 101Y00000X · License LPC.0021362 (CO), 62696 (TX)
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X · License LC13291 (MD)
Also ListedCounselor · ProfessionalTaxonomy 101YP2500X · License 62696 (TX)
Also ListedPsychologistTaxonomy 103T00000X · License LPA38893 (TX)
4202 TULE CV, Austin, TX 78749
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Insurance Company, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Thaddeus Martin Cox Lpc-s, Lpa, Phd, Lp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID244751360
PECOS Enrollment IDI20250305003158
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 78749 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
$174.00 typical visit price
range $57.88 – $174.00
Typical copayment $43.50 (range $14.47 – $43.50)
Most-billed visit code 99205
Established Patient
$101.65 typical visit price
range $18.88 – $142.23
Typical copayment $25.41 (range $4.72 – $35.55)
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.

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 Thaddeus Cox's NPI number?

The NPI number for Thaddeus Cox is 1346573128. It was assigned to this individual provider in the NPPES registry on September 11, 2009.

Where is Thaddeus Cox located?

Thaddeus Cox practices at 4202 Tule Cv, Austin, TX 78749. The listed phone number is (415) 812-0263.

What is Thaddeus Cox's specialty?

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

Is Thaddeus Cox enrolled in Medicare?

Yes. Thaddeus Cox is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Thaddeus Cox accept?

Health plans from Blue Cross and Blue Shield of Texas, Oscar Insurance Company and UnitedHealthcare list Thaddeus Cox as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Thaddeus Cox was last updated on April 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.