OKAY A. ONAN M.D. – NPI #1841297843
Orthopaedic Surgery

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.

Health Care Provider Taxonomy Code for Orthopaedic Surgery

OKAY ONAN is an orthopaedic surgeon located in AUSTIN, TX. NPPES has assigned the NPI number 1841297843 to OKAY ONAN on July 05, 2005. It is a Type-1 NPI, indicating this NPI number is associated with an individual. According to the NPI data, there are 3 additional location(s) assigned to this provider which are listed below. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207XS0117X from the Health Care Provider Taxonomy code set, which is classified as Orthopaedic Surgery, specializing in Orthopaedic Surgery of the Spine

The NPI profile was last updated on Mar 26, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for OKAY ONAN below.

NPI Profile for
OKAY A. ONAN

NPI Number
1841297843
Enumeration Date

(about 21 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
OKAY A. ONAN
Credentials
M.D.
Primary location
4700 SETON CENTER PKWY STE 200
SUITE 200
AUSTIN, TX 78759-4107
Phone: (512) 439-1000 Fax: (512) 439-1081
3 Other location(s):
2224 Walsh Tarlton Ln Ste 200
Austin, TX 78746-7756
Phone: (512) 439-1000
3755 S Capital Of Texas Hwy Ste 160
Austin, TX 78704-6645
Phone: (512) 439-1000
4700 Campus Village Dr Ste 100
Round Rock, TX 78665-3025
Phone: (512) 439-1000
Mailing address
Same as primary location
Sole Proprietor
No
Updated
Certification Date
Mar 26, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Identifiers

Identifiers for OKAY ONAN

Identifiers are used to associate other provider identifiers such as Medicaid or other insurers (ie:, Blue Cross, Blue Shield, Aetna, Kaiser-Permanente, etc.), with their NPI number. These identifiers can be used in matching an NPI number to an insurer's records. However, not all providers have such numbers and not all providers choose to include them in their NPI information.

DescriptionIssuerStateIdentifier
otherMEDICARE RAILROADP00033809
Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207XS0117X
- Orthopaedic Surgery / Orthopaedic Surgery of the Spine (Primary)		 TX K3624
207X00000X
- Orthopaedic Surgery		 TX K3624

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Education
BAYLOR COLLEGE OF MEDICINE - Graduated 1995
Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
OKAY ONAN is affiliated with the following medical group(s):
  • HOSPITAL
    • ASCENSION SETON MEDICAL CENTER AUSTIN
      1201 W 38TH ST
      AUSTIN, TX 78705
  • INPATIENT REHABILITATION FACILITY
    • BAYLOR SCOTT & WHITE INSTITUTE FOR REHABILITATION
      2000 MEDICAL DRIVE
      LAKEWAY, TX 78734

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Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System. See the complete CMS Data Dissemination Notice here.