OKAY ATILLA ONAN M.D.
NPI 1841297843
Orthopaedic Surgery - Orthopaedic Surgery of the Spine in Austin, TX

Q: What is Okay Onan's NPI number?

The NPI number for Okay Onan is 1841297843. It was assigned to this individual provider in the NPPES registry on July 5, 2005.

Q: What is Okay Onan's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Orthopaedic Surgery of the Spine, with taxonomy code 207XS0117X.

Q: When was this NPI record last updated?

The NPPES record for Okay Onan was last updated on March 26, 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.

Active since July 05, 2005PECOS EnrolledAccepts Medicare Assignment

86.59/100

CMS Quality Rating

4700 SETON CENTER PKWY STE 200, SUITE 200, AUSTIN, TX 78759(512) 439-1000(512) 439-1081 Get Directions Write a Review

NPPES record last updated: March 26, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 26, 2026, Oct 30, 2022, Aug 8, 2019 and 1 more (4 updates tracked since 2016).

On this page

About Okay Atilla Onan M.d. NPPES

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

OKAY ATILLA ONAN M.D. (NPI 1841297843) is an individual orthopaedic surgery of the spine provider in Austin, Texas, licensed in Texas (K3624) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Ascension Seton Medical Center Austin, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1841297843

Entity TypeIndividualMale

Primary Taxonomy207XS0117X

Provider Legal NameOKAY ATILLA ONANCredential: M.D.

Location Address4700 SETON CENTER PKWY STE 200, SUITE 200Austin, TX 78759-4107

Mailing Address4700 Seton Center Pkwy Ste 200, Suite 200Austin, TX 78759-4107 · (512) 439-1000 · Fax (512) 439-1081

Phone(512) 439-1000

Fax(512) 439-1081

Sole ProprietorNo

Medical School CMSBaylor College Of MedicineGraduated 1995

Enumeration DateJuly 5, 2005

Last NPPES UpdateMarch 26, 20264 updates tracked since enumeration

NPPES CertifiedMarch 26, 2026

✔ NPI 1841297843 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Orthopaedic Surgery of the SpineAllopathic & Osteopathic Physicians

Taxonomy Code207XS0117X

License✔ Licensed in TX · K3624

Definition

Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic surgeons of the spine deal with the evaluation and nonoperative and operative treatment of the full spectrum of primary spinal disorders including trauma, degenerative, deformity, tumor, and reconstructive.

Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License K3624 (TX)

4700 SETON CENTER PKWY STE 200, Austin, TX 78759

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Secondary Practice Locations 3

Location 14700 Campus Village Dr Ste 100Round Rock, TX 78665-3025 · Phone (512) 439-1000

Location 22224 Walsh Tarlton Ln Ste 200Austin, TX 78746-7756 · Phone (512) 439-1000

Location 33755 S Capital Of Texas Hwy Ste 160Austin, TX 78704-6645 · Phone (512) 439-1000

Other Identifiers 1

OtherP00033809Medicare Railroad

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.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

Okay Atilla Onan M.d. 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 ID3678650843

PECOS Enrollment IDI20100730000711

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.

Areas of Expertise CMS Part B claims 14

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

342 services212 patients

X-ray of lower and sacral spine, 2-3 views 72100

An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.

127 services102 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

75 services75 patients

Mri scan of lower spinal canal without contrast 72148

An MRI scan of the lower spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to produce detailed images of your lower spine. This helps identify issues like disc problems, tumors, or nerve conditions. No dye is used.

63 services63 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

30 services30 patients

X-ray of upper spine, 2-3 views 72040

An X-ray of the upper spine, with 2-3 views, is a painless procedure that employs a small amount of radiation to capture images of your neck and upper back. It assists in diagnosing conditions like arthritis, fractures, or spinal deformities.

29 services28 patients

Mri scan of upper spinal canal without contrast 72141

An MRI scan of the upper spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your upper spine. This helps doctors identify issues such as injuries, infections or diseases. No dye is used.

28 services28 patients

Insertion of cage or mesh device to spine bone and disc space during spine fusion 22853

Spine fusion is a procedure to join two or more vertebrae. During this process, a cage or mesh device is inserted into the spine bone and disc space. This helps to stabilize the spine, reduce pain, and improve functionality. The device acts as a bridge for new bone to grow on.

25 services18 patients

Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment 63048

This procedure involves the partial removal of a bone in your spine to alleviate pressure on your spinal cord or nerves. It may be performed on multiple spine segments depending on your condition. The aim is to improve mobility and reduce pain or discomfort.

24 services12 patients

Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment 63047

This procedure involves removing part of a spine bone to alleviate pressure on the lower spinal cord and/or nerves. It targets a single segment of the spine, improving mobility and reducing pain. It's a common treatment for conditions like herniated discs or spinal stenosis.

20 services20 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

15 services14 patients

Fusion of spine in lower back 22612

Fusion of the spine in the lower back, also known as lumbar spinal fusion, is a surgery aimed to join, or fuse, two or more vertebrae in your lower back. This procedure can help alleviate pain and improve stability by reducing movement between the vertebrae.

14 services14 patients

Placement of stabilizing device to back of 1 spine bone in neck 22840

This procedure involves positioning a stabilizing device onto a single spinal bone in the neck. The goal is to provide support and prevent movement that could cause discomfort or further injury. It's performed by trained specialists under anesthesia.

14 services14 patients

Fusion of spine in lower back with partial removal of spine bone and disc 22633

This procedure, called lumbar spinal fusion, involves joining two or more vertebrae in your lower back. It includes a partial removal of a spine bone and disc to alleviate pain and improve stability. The goal is to reduce motion between vertebrae and prevent nerve irritation.

12 services12 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension Seton Medical Center Austin

Acute Care Hospitals · Austin, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450056

Location1201 W 38th StAustin, TX 78705 · Travis County

Emergency services Birthing friendly

Round Rock Medical Center

Acute Care Hospitals · Round Rock, TX

4/5 CMS rating

OwnershipProprietary

CMS Certification Number450718

Location2400 Round Rock AveRound Rock, TX 78681 · Williamson County

Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

86.59/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

75.62

Promoting Interoperability

100

Improvement Activities

Reported Quality Measures

Advance Care Plan

99%574 patients4/55-star benchmark: 100%

Breast Cancer Screening

69%495 patients3/55-star benchmark: 93%

Cervical Cancer Screening

55%766 patients3/55-star benchmark: 98%

Closing the Referral Loop: Receipt of Specialist Report

30%1,171 patients2/55-star benchmark: 87%

Colorectal Cancer Screening

59%1,298 patients3/55-star benchmark: 88%

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)

Lower rates are better for this measure.

100%28 patients1/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

69%4,299 patients3/55-star benchmark: 100%

e-Prescribing

100%983 patients5/55-star benchmark: 100%

Falls: Screening for Future Fall Risk

92%553 patients4/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

26%2,362 patients2/55-star benchmark: 98%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

0%3,638 patients1/55-star benchmark: 61%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients combinedPopulations: 69% · 1,761 patients

Patients screened: 72% · 1,761 patients

25%68 patients2/55-star benchmark: 100%

Provide Patients Electronic Access to Their Health Information

95%1,294 patients4/55-star benchmark: 100%

Screening for Osteoporosis for Women Aged 65-85 Years of Age

77%250 patients4/55-star benchmark: 98%

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

87%61 patients4/55-star benchmark: 91%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 1% · 596 patients

Patients totalRate: 6% · 596 patients

5%596 patients4/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

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

DR. WILLIAM PARKER ABBLITT M.D.

Orthopaedic Surgery (Adult Reconstructive Orthopaedic Surgery)