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

Preston Ooi, DO

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1922663335

Preston Ooi, DO is registered under Physical Medicine and Rehabilitation in Killeen, Texas. Graduated from University of North Texas Hsc, College of Osteopathic Med in 2020, 6 years ago. Practices with Mark Malone MD PA, a 101-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Maryland and Texas.

Years since qualifying
6
Trained at
University of North Texas Hsc, College of Osteopathic Med
Licensed in
MD, TX
In the registry since
2019
Specialties on file
3
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

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Killeen, TX

No coordinates on file. Search this address in Google Maps

Additional practice locations (1)

  • 2000 S Mays St Ste 201, Round Rock, TX 78664-7580 — (512) 244-4272

Specialties & licences

Pain Medicine (Physical Medicine & Rehabilitation) Physician (primary) Taxonomy 2081P2900X · Licence V4162 (TX)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X
Pain Medicine (Physical Medicine & Rehabilitation) Physician Taxonomy 2081P2900X · Licence H0098983 (MD)

Record details

NPI number1922663335
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 1, 2019
Last updated in NPPESMay 9, 2025
Certification dateMay 9, 2025

Medicare enrollment

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

Medicare specialtyPHYSICAL MEDICINE AND REHABILITATION
Medical schoolUNIVERSITY OF NORTH TEXAS HSC, COLLEGE OF OSTEOPATHIC MED
Graduated 2020 (6 years in practice)
Group practice Mark Malone Md Pa — 101 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $448 4 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $306 3 payments · travel or lodging paid or reimbursed, such as to attend a conference

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Adventhealth Central Texas Hospital · Killeen, TX
  • Seton Medical Center Harker Heights Hospital · Harker Heights, TX

Colleagues at Mark Malone MD PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 101 clinicians in the practice; 12 are shown here.

Other providers in Killeen