Onpan Cheung, M.D., M.P.H.
Gastroenterology Physician · Denison, TX
Onpan Cheung, M.D., M.P.H. is a gastroenterology physician with a practice address in Denison, Texas, and NPI 1639195746, issued on Jul 14, 2006. Check the license (Texas U1248, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Onpan Cheung
- Credential
- M.D., M.P.H.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- U1248 TX
A111454 CA
FC1954189 CA
0101238939 VA
Self-reported in NPPES; status is on the state search - Practice location
- 5016 US Hwy 75, Denison, TX 75020
- Phone
- (903) 416-6389
- Enumerated
- Jul 14, 2006
- Record last updated
- Aug 26, 2023
- Medicare enrollment
- Enrolled (PECOS I20230525002345); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,478 in Texas → Look up another NPI →
Also registered at 5016 US Hwy 75
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Megan Chandler, CRNACertified Registered Nurse Anesthetist1275257792
- Mallory Earthman, APRNNurse Practitioner1912660762
Verify Onpan Cheung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license U1248Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average gastroenterology physician in 2024
632 Medicare Part D claims for 233 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Omeprazole180 claims
- Pantoprazole Sodium131 claims
- Suflave58 claims
- Famotidine42 claims
- Mesalamine24 claims
- Dicyclomine Hcl17 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.
Industry payments in 2024: $52.09
3 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Texomacare Specialty PhysiciansDenison, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Onpan Cheung among 1,478 gastroenterology physician records in Texas
Onpan Cheung, M.D., M.P.H. is one of 1,478 gastroenterology physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 51% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated2003 · median 2003 among the 1,175 with a school on file
- Record last updated2023 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Texas
There are 1,478 gastroenterology physician records in Texas.
All 1,478 in Texas → Every provider in Denison → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Nhat Nguyen, M.D.Denison, TX 750201053643072
- Karthik Ragunathan, MDDenison, TX 750201497195457
- Richard Saltz, M.D.Denison, TX 750201447238597
- Tung Tran, M.D.Denison, TX 750201396958484
- Shailesh Mehta, M.D.Flower Mound, TX 750221184600041
- Muhammad Arif, M.D.Plano, TX 750241679709380
- Gowri Balachandar, M.D.Plano, TX 750241669435889
- Jason Edling, M.D.Plano, TX 750251912983206
Common questions
What is Onpan Cheung, M.D., M.P.H.'s NPI number?
Onpan Cheung, M.D., M.P.H.'s National Provider Identifier (NPI) is 1639195746, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Onpan Cheung, M.D., M.P.H. located?
The NPPES record lists a practice address at 5016 US Hwy 75, Denison, TX, 75020. Phone: (903) 416-6389. Providers update this record themselves, so call before visiting.
How can I verify Onpan Cheung, M.D., M.P.H.'s license?
NPPES lists Texas license number U1248, 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 Onpan Cheung, M.D., M.P.H. prescribe under Medicare Part D?
In 2024, Onpan Cheung, M.D., M.P.H. had 632 Medicare Part D claims for 233 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.