NPPES file of Aug 9, 2026

Lester Ong, M.D.

Internal Medicine Physician · Stephenville, TX

Lester Ong, M.D. is an internal medicine physician with a practice address in Stephenville, Texas, and NPI 1255337119, issued on Jun 24, 2005. Check the license (Texas K1603, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255337119
Name
Lester Ong
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
K1603 TX
Self-reported in NPPES; status is on the state search
Practice location
150 River North Blvd, Stephenville, TX 76401
Phone
(254) 968-6051
Enumerated
Jun 24, 2005
Record last updated
Oct 6, 2022
Fax
(254) 968-4204
Medicaid ID
042755101 TX
Medicare enrollment
Enrolled (PECOS I20091221000244); accepts Medicare assignment
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 150 River North Blvd

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

  1. Haley Banks, MDFamily Medicine Physician1376036657
  2. David Boucher, MDInternal Medicine Physician1639174675
  3. Mallory Brown, AGNP-CNurse Practitioner1275390817
  4. Lesslie Bull, CNMAdvanced Practice Midwife1447727912
  5. Rhonda Burd, RN, ANPObstetrics & Gynecology Nurse Practitioner1588669675
  6. Anita Butler, RD, LDNutrition Education Nutritionist1063417038

Verify Lester Ong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license K1603
    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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6.2 times the Medicare Part D claims of the average internal medicine physician in 2024

19,647 Medicare Part D claims for 929 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 1,216 claims were for opioids.

  1. Lester Ong19,647
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium775 claims
  2. Levothyroxine Sodium628 claims
  3. Gabapentin599 claims
  4. Hydrocodone-Acetaminophen582 claims
  5. Furosemide581 claims
  6. Amlodipine Besylate508 claims

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.

The MIPS final score for 2023 (Medicare payment program): 94.9 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score89.8
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $433.07

19 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lester Ong$433.07
  2. Specialty average$1,303.06

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. Texas Health Care PLLCStephenville, TX

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

Lester Ong among 9,175 internal medicine physician records in Texas

Lester Ong, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 91% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1988 · median 2004 among the 6,088 with a school on file
  • Record last updated2022 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

8 internal medicine physician records list a practice address in Stephenville

They are 8 of the 410 NPPES records with a practice address in Stephenville, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Amru Abualneel, DOStephenville, TX 764011497332746
  2. Donald Benson, MDStephenville, TX 764011376599183
  3. David Boucher, MDStephenville, TX 764011639174675
  4. Nicki Colbert, DOStephenville, TX 764011922074848
  5. Jeffrey Moore, M.D.Stephenville, TX 764011023014008
  6. Miranda Nash, M.D.Stephenville, TX 764011235398140
  7. Alisa Peterson, DOStephenville, TX 764011609842525
  8. Travis Lehman, D.O.Vernon, TX 763841710271432

Common questions

What is Lester Ong, M.D.'s NPI number?

Lester Ong, M.D.'s National Provider Identifier (NPI) is 1255337119, issued on Jun 24, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Lester Ong, M.D. located?

The NPPES record lists a practice address at 150 River North Blvd, Stephenville, TX, 76401. Phone: (254) 968-6051. Providers update this record themselves, so call before visiting.

How can I verify Lester Ong, M.D.'s license?

NPPES lists Texas license number K1603, 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 Lester Ong, M.D. prescribe under Medicare Part D?

In 2024, Lester Ong, M.D. had 19,647 Medicare Part D claims for 929 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Lester Ong, M.D.'s MIPS final score?

The 2023 MIPS final score is 94.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.