Ethan Massingill, DO
Internal Medicine Physician · Seguin, TX
Ethan Massingill, DO is an internal medicine physician with a practice address in Seguin, Texas, and NPI 1619665478, issued on Apr 28, 2023. Check the license (Texas W7368, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ethan Massingill
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- W7368 TX
BP10085240 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1215 E Court St, Seguin, TX 78155
- Phone
- (830) 379-2411
- Enumerated
- Apr 28, 2023
- Record last updated
- Jul 2, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 1215 E Court St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Olga Ali, P.A.Physician Assistant1477553626
- Juan Arenas-Herrera, M.DInternal Medicine Physician1447510011
- Megan Brodeur, PHARMDPharmacist1407747546
- Sterling Brown, MD, MSEmergency Medicine Physician1689101099
- David Burns, CRNACertified Registered Nurse Anesthetist1952320228
- Lucretia Burton, LCSWClinical Social Worker1538366653
Verify Ethan Massingill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license W7368Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
128 Medicare Part D claims for 38 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of 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: $16.90
1 payment: food and beverage; the largest payer was Madrigal Pharmaceuticals. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Ethan Massingill among 9,175 internal medicine physician records in Texas
Ethan Massingill, DO 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 2023, is newer than 95% of them.
- NPI issued2023 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2026 · 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).
Internal Medicine Physician providers in Texas
There are 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Seguin → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Juan Arenas-Herrera, M.DSeguin, TX 781551447510011
- Robert Frets, MDSeguin, TX 781551578557203
- Susan Heineck, M.D.Seguin, TX 781551245345610
- Yu Jie Kuo, M.D.Seguin, TX 781551841485588
- Adaeze Nwosu, M.D.Seguin, TX 781551114214061
- James Murray, MDSelma, TX 781541154398980
- Anthony Wright, DOSelma, TX 781541841266517
- Maria Angles, M.D.Joint Base San Antonio Randolph, TX 781501093791519
Common questions
What is Ethan Massingill, DO's NPI number?
Ethan Massingill, DO's National Provider Identifier (NPI) is 1619665478, issued on Apr 28, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Ethan Massingill, DO located?
The NPPES record lists a practice address at 1215 E Court St, Seguin, TX, 78155. Phone: (830) 379-2411. Providers update this record themselves, so call before visiting.
How can I verify Ethan Massingill, DO's license?
NPPES lists Texas license number W7368, 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 Ethan Massingill, DO prescribe under Medicare Part D?
In 2024, Ethan Massingill, DO had 128 Medicare Part D claims for 38 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.