Esteban Castro-Diaz, M.D.
Gastroenterology Physician · Carolina, PR
Esteban Castro-Diaz, M.D. is a gastroenterology physician with a practice address in Carolina, Puerto Rico, and NPI 1407920580, issued on Nov 20, 2006. Check the license (Puerto Rico 8507, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Esteban Castro-Diaz
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 8507 PR
Self-reported in NPPES; status is on the state search - Practice location
- DL13 Via Emilia, Carolina, PR 00983
- Phone
- (787) 768-1355
- Enumerated
- Nov 20, 2006
- Record last updated
- Aug 9, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101117000395); accepts Medicare assignment
- Medical or professional school
- University Of Puerto Rico School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 203 in Puerto Rico → Look up another NPI →
Also registered at DL13 Via Emilia
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gabriel Miranda Ramirez, M.D.Urology Physician1588649677
Verify Esteban Castro-Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
Search for license 8507Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% more Medicare Part D claims than the average gastroenterology physician in 2024
997 Medicare Part D claims for 287 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Sodium Chloride222 claims
- Midazolam Hcl153 claims
- Suprep119 claims
- Omeprazole117 claims
- Meperidine Hcl98 claims
- Sod Sulf-Potass Sulf-Mag Sulf74 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.
Esteban Castro-Diaz among 203 gastroenterology physician records in Puerto Rico
Esteban Castro-Diaz, M.D. is one of 203 gastroenterology physician records with a practice address in Puerto Rico. 92% 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 20% of them.
- NPI issued2006 · 20% of these records are older, 51% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated1984 · median 2000 among the 165 with a school on file
- Record last updated2019 · 69% 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 Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Puerto Rico
There are 203 gastroenterology physician records in Puerto Rico.
All 203 in Puerto Rico → Every provider in Carolina → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Henry De Jesus-De La CruzCarolina, PR 009831174940068
- Esteban Rodriguez Martino, M.D.Carolina, PR 009851447652672
- Mervin Figueroa-Pinto, M.D.Carolina, PR 009871891928123
- Dagmary Purcell, M.D.Humacao, PR 009721134203276
- Ivan Antunez Gonzalez, M.D.Guaynabo, PR 009691962457408
- Abdiel Cruz-Loubriel, M.D.Guaynabo, PR 009691326005364
- Angel Molina, M.D.Guaynabo, PR 009691114905726
- Ibrahim Perez, M.D.Los Filtros, PR 009691306110762
Common questions
What is Esteban Castro-Diaz, M.D.'s NPI number?
Esteban Castro-Diaz, M.D.'s National Provider Identifier (NPI) is 1407920580, issued on Nov 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Esteban Castro-Diaz, M.D. located?
The NPPES record lists a practice address at DL13 Via Emilia, Carolina, PR, 00983. Phone: (787) 768-1355. Providers update this record themselves, so call before visiting.
How can I verify Esteban Castro-Diaz, M.D.'s license?
NPPES lists Puerto Rico license number 8507, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Esteban Castro-Diaz, M.D. prescribe under Medicare Part D?
In 2024, Esteban Castro-Diaz, M.D. had 997 Medicare Part D claims for 287 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.