Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Okay Atilla Onan, MD

Individual provider Orthopaedic Surgery of the Spine Physician · NPI 1841297843

Okay Atilla Onan, MD is an Orthopedic Surgery in Austin, Texas. Graduated from Baylor College of Medicine in 1995, 31 years ago. Practices with Ortholonestar PLLC, a 415-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
31
Trained at
Baylor College of Medicine
Licensed in
TX
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

4700 Seton Center Pkwy Ste 200 Ste 200
Austin, TX 78759-4107
Phone: (512) 439-1000
Fax: (512) 439-1081
Show map & directions

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

Additional practice locations (3)

  • 3755 S Capital Of Texas Hwy Ste 160, Austin, TX 78704-6645 — (512) 439-1000
  • 2224 Walsh Tarlton Ln Ste 200, Austin, TX 78746-7756 — (512) 439-1000
  • 4700 Campus Village Dr Ste 100, Round Rock, TX 78665-3025 — (512) 439-1000

Specialties & licences

Orthopaedic Surgery of the Spine Physician (primary) Taxonomy 207XS0117X · Licence K3624 (TX)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence K3624 (TX)

Record details

NPI number1841297843
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 5, 2005
Last updated in NPPESMarch 26, 2026
Certification dateMarch 26, 2026

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolBAYLOR COLLEGE OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Ortholonestar Pllc — 415 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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