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

Dr. Nancy Suzanne Onisko, DO

Individual provider Emergency Medicine Physician · NPI 1104025337

Dr. Nancy Suzanne Onisko, DO practises Emergency Medicine in Dallas, Texas. Graduated from Arizona College of Osteopathic Medicine Mid Western University in 2003, 23 years ago. Practices with University of Texas Southwestern Medical Center at Dallas, a 3,149-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
23
Trained at
Arizona College of Osteopathic Medicine Mid Western University
Licensed in
TX
In the registry since
2007
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

5323 Harry Hines Blvd Mc 8890
Dallas, TX 75390-8890
Phone: (623) 261-8154
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence P7685 (TX)

Record details

NPI number1104025337
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 17, 2007
Last updated in NPPESMarch 17, 2026
Certification dateMarch 17, 2026

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolARIZONA COLLEGE OF OSTEOPATHIC MEDICINE MID WESTERN UNIVERSITY
Graduated 2003 (23 years in practice)
Group practice University Of Texas Southwestern Medical Center At Dallas — 3149 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 patients51
Services billed 57 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

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.

Colleagues at University of Texas Southwestern Medical Center at Dallas

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3149 clinicians in the practice; 12 are shown here.

Other providers in Dallas