Roman Adonis Castillo, M.D.
Internal Medicine Physician · Dallas, TX
Roman Adonis Castillo, M.D. is an internal medicine physician with a practice address in Dallas, Texas, and NPI 1811344583, issued on May 23, 2016. Check the license (Texas S2253, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Roman Adonis Castillo
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- S2253 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2121 S Buckner Blvd Ste 100, Dallas, TX 75227
- Phone
- (214) 381-1187
- Enumerated
- May 23, 2016
- Record last updated
- Jul 1, 2024
- Fax
- (214) 381-7213
- Medicare enrollment
- Enrolled (PECOS I20190924002681); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 2121 S Buckner Blvd Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Blexy Abraham, APRNPrimary Care Nurse Practitioner1124574157
- Cesar Gomez-Lozano, M.D.Internal Medicine Physician1780632158
Verify Roman Adonis Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license S2253Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% more Medicare Part D claims than the average internal medicine physician in 2024
5,091 Medicare Part D claims for 788 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. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium303 claims
- Rosuvastatin Calcium277 claims
- Metformin Hcl213 claims
- Gabapentin184 claims
- Amlodipine Besylate175 claims
- Lisinopril159 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: $49.09
2 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. 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.
Bills Medicare through one group practice
- Wellmed Medical Group PASan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roman Adonis Castillo among 9,175 internal medicine physician records in Texas
Roman Adonis Castillo, 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 2016, is newer than 74% of them.
- NPI issued2016 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2012 · median 2004 among the 6,088 with a school on file
- Record last updated2024 · 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).
956 internal medicine physician records list a practice address in Dallas
They are 956 of the 36,304 NPPES records with a practice address in Dallas, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Dallas → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Abdallah Adham, MDDallas, TX 752271275631921
- Cesar Gomez-Lozano, M.D.Dallas, TX 752271780632158
- Christopher Bloom, MDDallas, TX 752281518967686
- Edwin Escobar, MDDallas, TX 752281346281557
- Marilyn Horton, M.D.Dallas, TX 752281104851906
- Michael Jerome, DODallas, TX 752281306164967
- Christopher Nguyen, DODallas, TX 752281134681778
- Pedro Zevallos, MDDallas, TX 752281891729091
Common questions
What is Roman Adonis Castillo, M.D.'s NPI number?
Roman Adonis Castillo, M.D.'s National Provider Identifier (NPI) is 1811344583, issued on May 23, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Roman Adonis Castillo, M.D. located?
The NPPES record lists a practice address at 2121 S Buckner Blvd Ste 100, Dallas, TX, 75227. Phone: (214) 381-1187. Providers update this record themselves, so call before visiting.
How can I verify Roman Adonis Castillo, M.D.'s license?
NPPES lists Texas license number S2253, 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 Roman Adonis Castillo, M.D. prescribe under Medicare Part D?
In 2024, Roman Adonis Castillo, M.D. had 5,091 Medicare Part D claims for 788 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.