Dr. Ruben I. Castillo Jr., MD
- Medicare services, 2016
- 15
- Part D claims, 2024
- 337
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 115 Rd Km 24.5 Bo Asomante, Aguada, PR 00602
- Practice phone
- Call (787) 868-2040
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Quality Ob Gyn Services
Physician office · Aguada, Puerto Rico
Find Dr. Castillo's professional email, personal email and mobile number
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Dr. Ruben I. Castillo Jr. is an OB-GYN in San Juan, Puerto Rico
Dr. Castillo practices at Quality Ob Gyn Services in Aguada, Puerto Rico.
Dr. Castillo's NPI, 1548367782, was assigned on September 20, 2006. Dr. Castillo graduated from University of Puerto Rico School of Medicine in 1980. Dr. Castillo holds Puerto Rico license 7510.
- NPI
- 1548367782NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648493122
- NPI enumeration date
- September 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (787) 868-2040
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ruben I. Castillo Jr. practices in Aguada and San Juan
Dr. Castillo's primary practice is Quality Ob Gyn Services, at 115 Rd Km 24.5 Bo Asomante, Aguada, PR 00602. The practice phone is (787) 868-2040. The NPI Registry lists Dr. Castillo's practice address as 230 Arterial Hostos, San Juan, PR 00918.
- Quality Ob Gyn ServicesPrimary115 Rd Km 24.5 Bo Asomante, Aguada, PR 00602Phone(787) 868-2040
- NPI Registry address230 Arterial Hostos, San Juan, PR 00918 · San Juan CountyPhone(787) 868-2040
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Ruben I. Castillo Jr. is affiliated with 1 site of care
Dr. Castillo's primary practice is Quality Ob Gyn Services in Aguada, Puerto Rico.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ruben I. Castillo Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Castillo practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Quality Ob Gyn Services | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ruben I. Castillo Jr. is one of 263 OB-GYNs in Puerto Rico
Obstetrics and gynecology is Dr. Castillo's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Castillo is licensed in Puerto Rico.
Specialties and state licenses
- Obstetrics and gynecology, Puerto RicoPrimary
OB-GYNs near Dr. Castillo
Counts of OB-GYNs with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ruben I. Castillo Jr. billed Medicare for 15 services in 2016
CMS data shows 15 Medicare services from Dr. Castillo across 1 procedure code in 2016, all of them office visits. Medicare paid $609 for them. Every service was in an office.
Dr. Castillo compared with the Puerto Rico median for OB-GYNs, 2016
- Dr. Castillo
- Puerto Rico median
- Medicare services
- 15vs 2846% below
- Part D claims
- 263vs 773.4 times
Medians across 265 OB-GYNs in Puerto Rico with Dmand AI profiles that report each measure.
Dr. Castillo's most billed Medicare procedure codes, 2016
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Castillo and other OB-GYNs in Puerto Rico.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ruben I. Castillo Jr.'s patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Dr. Castillo's median patient age at 60, with 100% women.
Dr. Castillo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Ruben I. Castillo Jr. wrote 337 Medicare Part D claims in 2024
In 2024, Dr. Castillo wrote 337 Medicare Part D claims for 120 patients. 93% of them were for generic drugs. CMS names the drug for 263 of them, across 10 drugs with 11 or more claims each, at $10,128 in total drug cost. In 2023, CMS named 267 claims across 12 drugs.
Dr. Castillo's Part D claims by kind of drug, 2024
- Generic313 claims93%
- Brand-name24 claims7%
Dr. Castillo's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Castillo's Part D claims, 2024
- Antibiotics11%38 of 337 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2672024: 2631%
Drugs named by CMS: 10 in 2024, 12 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Ruben I. Castillo Jr. takes part in Medicare
Dr. Castillo accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ruben I. Castillo Jr. graduated from University of Puerto Rico School of Medicine
Dr. Castillo graduated from University of Puerto Rico School of Medicine in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ruben I. Castillo Jr.'s profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ruben I. Castillo Jr.
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Ruben I. Castillo Jr.'s NPI number?
Dr. Ruben I. Castillo Jr.'s NPI number is 1548367782. It was assigned on September 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ruben I. Castillo Jr.?
Dr. Ruben I. Castillo Jr. is an OB-GYN in San Juan, Puerto Rico. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Ruben I. Castillo Jr. practice?
Dr. Castillo practices at 115 Rd Km 24.5 Bo Asomante, Aguada, PR 00602. Dr. Castillo also practices at 230 Arterial Hostos, San Juan, PR 00918. Dr. Castillo's primary practice is Quality Ob Gyn Services in Aguada, Puerto Rico.
What is Dr. Ruben I. Castillo Jr.'s office phone number?
The practice phone on file for Dr. Castillo is (787) 868-2040.
What is Dr. Ruben I. Castillo Jr.'s medical license number?
Dr. Castillo holds Puerto Rico license 7510.
Does Dr. Ruben I. Castillo Jr. accept Medicare?
Yes. CMS data shows Dr. Castillo billed Medicare for 15 services in 2016, and Dr. Castillo accepts Medicare assignment.
What services does Dr. Ruben I. Castillo Jr. bill to Medicare?
In 2016, Dr. Castillo's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Ruben I. Castillo Jr. go to medical school?
Dr. Castillo graduated from University of Puerto Rico School of Medicine in 1980.
What drugs does Dr. Ruben I. Castillo Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Castillo's most prescribed drugs by claims were Progesterone, Clotrimazole-Betamethasone and Fluconazole.
How long has Dr. Ruben I. Castillo Jr. been practicing?
Dr. Castillo graduated from medical school in 1980, 46 years ago.
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