Ernest Clayton Hymel, M.D., PH.D
Radiation Oncology Physician · Port Arthur, TX
Ernest Clayton Hymel, M.D., PH.D is a radiation oncology physician with a practice address in Port Arthur, Texas, and NPI 1851390819, issued on Jul 20, 2005. Check the license (Texas M0437, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ernest Clayton Hymel
- Credential
- M.D., PH.D
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- M0437 TX
Self-reported in NPPES; status is on the state search - Practice location
- 8333 9TH Ave Ste G, Port Arthur, TX 77642
- Phone
- (409) 729-8088
- Enumerated
- Jul 20, 2005
- Record last updated
- Sep 28, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (409) 729-8089
- Medicaid ID
- 180545902 TX
- Medicare enrollment
- Enrolled (PECOS I20050926001167); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical Branch At Galveston, 2000
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 449 in Texas → Look up another NPI →
Also registered at 8333 9TH Ave Ste G
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danny Chow, M.D.Radiation Oncology Physician1083613038
Verify Ernest Clayton Hymel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M0437Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% more Medicare Part D claims than the average radiation oncology physician in 2024
222 Medicare Part D claims for 100 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 29 claims were for opioids.
Most prescribed
- Tamsulosin Hcl66 claims
- Lorazepam19 claims
- Hydrocodone-Acetaminophen14 claims
- Promethazine Hcl14 claims
- Bicalutamide11 claims
- Oxybutynin Chloride Er11 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $456.93
22 payments; by number, the most common kind was food and beverage; the largest payer was Incyte Corporation. The 3,275 providers of this specialty with any payment received $1,897.85 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
- Baptist Physician NetworkPort Arthur, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ernest Clayton Hymel among 449 radiation oncology physician records in Texas
Ernest Clayton Hymel, M.D., PH.D is one of 449 radiation oncology physician records with a practice address in Texas. 85% 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, 87% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated2000 · median 2004 among the 348 with a school on file
- Record last updated2012 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Texas
There are 449 radiation oncology physician records in Texas.
All 449 in Texas → Every provider in Port Arthur → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Danny Chow, M.D.Port Arthur, TX 776421083613038
- Joseph Kong, M.D.Port Arthur, TX 776421902805054
- Mirna Abboud, M.D.Webster, TX 775981386938371
- Rajayogesh Davuluri, MDWebster, TX 775981972865731
- Sergio Jaramillo, M.D.Webster, TX 775981659767127
- David Walker, MDWebster, TX 775981043256795
- Chisaroka Echendu, M.D., PH.D.Beaumont, TX 777021336404748
- Apryl Mensah, M.D.Beaumont, TX 777021992033559
Common questions
What is Ernest Clayton Hymel, M.D., PH.D's NPI number?
Ernest Clayton Hymel, M.D., PH.D's National Provider Identifier (NPI) is 1851390819, issued on Jul 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ernest Clayton Hymel, M.D., PH.D located?
The NPPES record lists a practice address at 8333 9TH Ave Ste G, Port Arthur, TX, 77642. Phone: (409) 729-8088. Providers update this record themselves, so call before visiting.
How can I verify Ernest Clayton Hymel, M.D., PH.D's license?
NPPES lists Texas license number M0437, 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 Ernest Clayton Hymel, M.D., PH.D prescribe under Medicare Part D?
In 2024, Ernest Clayton Hymel, M.D., PH.D had 222 Medicare Part D claims for 100 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Ernest Clayton Hymel, M.D., PH.D's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.