NPPES file of Aug 9, 2026

Preston Ooi, DO

Pain Medicine (Physical Medicine & Rehabilitation) Physician · Killeen, TX

Preston Ooi, DO is a pain medicine (physical medicine & rehabilitation) physician with a practice address in Killeen, Texas, and NPI 1922663335, issued on May 1, 2019. Check the license (Texas V4162, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922663335
Name
Preston Ooi
Credential
DO
Primary taxonomy
Pain Medicine (Physical Medicine & Rehabilitation) Physician 2081P2900X
License numbers
V4162 TX
H0098983 MD
Self-reported in NPPES; status is on the state search
Practice location
3400 E Central Texas Expy Ste 101, Killeen, TX 76543
Phone
(254) 741-6641
Enumerated
May 1, 2019
Record last updated
May 9, 2025
Fax
(254) 537-4693
Medicare enrollment
Enrolled (PECOS I20250409001128); accepts Medicare assignment
Medical or professional school
University Of North Texas Hsc, College Of Osteopathic Med, 2020
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3400 E Central Texas Expy Ste 101

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. David Amaro-Driedger, MDInterventional Pain Medicine Physician1447755251
  2. Marc Carrion, FNPFamily Nurse Practitioner1649720855
  3. Emily Gillmore, FNP-CFamily Nurse Practitioner1962125674
  4. Justin Henne, FNP-CFamily Nurse Practitioner1235688755
  5. Christine Hram Agassi, APRN-CNPNurse Practitioner1922787027
  6. Akeibia JacksonFamily Nurse Practitioner1952092256

Verify Preston Ooi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license V4162
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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96% fewer Medicare Part D claims than the average pain medicine (physical medicine & rehabilitation) physician in 2024

53 Medicare Part D claims for 32 beneficiaries, against an average of 1,479 among the 1,457 providers of this specialty who prescribed in Part D. 27 claims were for opioids.

  1. Preston Ooi53
  2. Specialty average1,479

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $2,817.90

40 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 1,126 providers of this specialty with any payment received $2,193.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Preston Ooi$2,817.90
  2. Specialty average$2,193.30

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Mark Malone MD PAKilleen, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Preston Ooi among 141 pain medicine (physical medicine & rehabilitation) physician records in Texas

Preston Ooi, DO is one of 141 pain medicine (physical medicine & rehabilitation) physician records with a practice address in Texas. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 92% of them.

  • NPI issued2019 · 92% of these records are older, 4% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2020 · median 2007 among the 100 with a school on file
  • Record last updated2025 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2081P2900X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pain Medicine (Physical Medicine & Rehabilitation) Physician providers in Texas

There are 141 pain medicine (physical medicine & rehabilitation) physician records in Texas.

The 8 pain medicine (physical medicine & rehabilitation) physician records with the nearest ZIP codes

  1. Ryan Jacobs, MDKilleen, TX 765431548615750
  2. Monika Krzyzek, D.O.Fort Cavazos, TX 765441144483751
  3. Andrew Phillips, M.D.Killeen, TX 765491669829248
  4. Jonathan Holt, MDWaco, TX 767081457989238
  5. Marcom Herren, D.O.Wichita Falls, TX 763081326064825
  6. James Morgan, M.D.Wichita Falls, TX 763081528412392
  7. John Vogel, DOWichita Falls, TX 763081518966167
  8. Kelly McGinley, PTAWichita Falls, TX 763021750861407

Common questions

What is Preston Ooi, DO's NPI number?

Preston Ooi, DO's National Provider Identifier (NPI) is 1922663335, issued on May 1, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Preston Ooi, DO located?

The NPPES record lists a practice address at 3400 E Central Texas Expy Ste 101, Killeen, TX, 76543. Phone: (254) 741-6641. Providers update this record themselves, so call before visiting.

How can I verify Preston Ooi, DO's license?

NPPES lists Texas license number V4162, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Preston Ooi, DO prescribe under Medicare Part D?

In 2024, Preston Ooi, DO had 53 Medicare Part D claims for 32 beneficiaries; the average among pain medicine (physical medicine & rehabilitation) physician prescribers was 1,479. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.