Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Gregory James Ziomek

Individual provider Psychiatry Physician · NPI 1356908776

Gregory James Ziomek practises Psychiatry in Austin, Texas. Qualified in 2019, 7 years ago. Practices with Tri-County Clinical, a 28-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New Mexico and Texas.

Years since qualifying
7
Licensed in
NM, TX
In the registry since
2019
Specialties on file
2

Practice location Address checks out

3501 Mills Ave Fl 6
Austin, TX 78731-6309
Phone: (512) 324-2000
Show map & directions

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

Additional practice locations (1)

  • 1 University Of New Mexico, Albuquerque, NM 87131-0001 — (505) 272-2237

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence MD2026-0164 (NM)
Psychosomatic Medicine Physician Taxonomy 2084P0015X · Licence U0462 (TX)

Record details

NPI number1356908776
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMay 21, 2019
Last updated in NPPESJune 1, 2026
Certification dateJune 1, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Tri-County Clinical — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients40
Services billed 125 a service is one billed item, such as a visit, a test or a procedure
Average patient age61

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Tri-County Clinical

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 28 clinicians in the practice; 12 are shown here.

Other providers in Austin