Ruben I. Castillo, MD
Obstetrics & Gynecology Physician · Aguada, PR
Ruben I. Castillo, MD is an obstetrics & gynecology physician with a practice address in Aguada, Puerto Rico, and NPI 1548367782, issued on Sep 20, 2006. Check the license (Puerto Rico 7510, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ruben I. Castillo
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 7510 PR
Self-reported in NPPES; status is on the state search - Practice location
- Road 115 KM 245, Aguada, PR 00602
- Phone
- (787) 868-2040
- Enumerated
- Sep 20, 2006
- Record last updated
- Jan 23, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (787) 868-2175
- Medicare enrollment
- Enrolled (PECOS I20140602001961); accepts Medicare assignment
- Medical or professional school
- University Of Puerto Rico School Of Medicine, 1980
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 360 in Puerto Rico → Look up another NPI →
Verify Ruben I. Castillo 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 7510Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
337 Medicare Part D claims for 120 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Progesterone79 claims
- Clotrimazole-Betamethasone32 claims
- Fluconazole31 claims
- Terconazole24 claims
- Clindamycin Phosphate21 claims
- Tolterodine Tartrate Er19 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.
Ruben I. Castillo among 360 obstetrics & gynecology physician records in Puerto Rico
Ruben I. Castillo, MD is one of 360 obstetrics & gynecology physician records with a practice address in Puerto Rico. 86% 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, 46% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1980 · median 1994 among the 181 with a school on file
- Record last updated2013 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 obstetrics & gynecology physician records list a practice address in Aguada
They are 4 of the 383 NPPES records with a practice address in Aguada, and 360 obstetrics & gynecology physician records in Puerto Rico.
All 360 in Puerto Rico → Every provider in Aguada → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Mabel Bonilla, M.D.Aguada, PR 006021396848537
- Heberto Diaz-Otero, M.D.Aguada, PR 006021750344602
- Rafael Rodriguez, M.D.FACOGAguada, PR 006021518016229
- Carlos CarbonellAguadilla, PR 006031245377449
- Alberto Colomer Montes, M.D.Aguadilla, PR 006031871528554
- Nitza Figueroa-Rivera, M.D.Aguadilla, PR 006031063507259
- Maria Bravo Alonso, M.D.Arecibo, PR 006121881695583
- Manuel Colon, M.D.Arecibo, PR 006121932219896
Common questions
What is Ruben I. Castillo, MD's NPI number?
Ruben I. Castillo, MD's National Provider Identifier (NPI) is 1548367782, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ruben I. Castillo, MD located?
The NPPES record lists a practice address at Road 115 KM 245, Aguada, PR, 00602. Phone: (787) 868-2040. Providers update this record themselves, so call before visiting.
How can I verify Ruben I. Castillo, MD's license?
NPPES lists Puerto Rico license number 7510, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Ruben I. Castillo, MD prescribe under Medicare Part D?
In 2024, Ruben I. Castillo, MD had 337 Medicare Part D claims for 120 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.