NPI registry status
Active
2026 NPPES data Gastroenterology Physician NPI 1235660762
Verify on CMS → Rafael Medina-Prieto
Gastroenterology Physician in Cayey, Puerto Rico.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,567 in Gastroenterology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
289
Medicare Part D claims · 100 beneficiaries · Gastroenterology Physician avg: 833
Generic prescribing
64%
generic claims · 36% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Rafael Medina-Prieto filed 289 Medicare Part D claims in 2023 as a Gastroenterology Physician in Cayey, Puerto Rico, prescribing 64% generic.
- 289
- Part D claims, 2023
- 64%
- generic prescribing
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Rafael Medina-Prieto's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
289 49th percentile higher than 49% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Rafael Medina-Prieto practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Rafael Medina-Prieto?
Quality data not reportedPrimary specialty
Gastroenterology Physician
Medicare Part D claims
289 65% vs specialty avg
Specialty distribution in Puerto Rico
How Gastroenterology Physician compares to other specialties among Puerto Rico providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Gastroenterology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Rafael Medina-Prieto appears in the CMS NPPES registry as a Gastroenterology Physician provider at 150 CALLE LUCIA VAZQUEZ S, Cayey, PR, 00736, with a listed phone of (787) 263-7885. NPI 1235660762 was issued on 03/26/2017.
Medicare Part D records for calendar year 2023 show 289 prescription claims written by this provider, covering 100 Medicare beneficiaries and totaling roughly $294K in drug spend, split 36% brand-name and 64% generic by claim count.
Gastroenterology Physician is a mid-sized specialty nationwide, with 16,567 enrolled providers across 54 states and an average of 833 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1235660762 |
|---|---|
| Specialty | Gastroenterology Physician |
| Gender | Male |
| NPI Issued | 03/26/2017 |
Brand vs generic prescribing mix · Above average
Rafael Medina-Prieto - brand share 36.0%
Gastroenterology Physician average
36% brand-name claims vs 64% generic, on 289 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
289
Total Claims
$294K
Total Drug Cost
100
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 328
- Total Day Supply
- 4,611
- Brand vs Generic
- 36% brand / 64% generic
- Brand Drug Cost
- $287K
- Generic Drug Cost
- $7K
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 67.4 years
- Avg HCC Risk Score
- 1.62
- Gender Split
- 53% female / 47% male
- Age Distribution
- <65: 35, 65-74: 41, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Rafael Medina-Prieto prescribes most
Top Medicare Part D drugs by claim count, 2023
- Midazolam Hcl
Midazolam Hcl
39 claims
- Fentanyl Citrate
Fentanyl Citrate
28 claims
- Omeprazole
Omeprazole
24 claims
- Sodium Chloride
Sodium Chloride
21 claims
- Naloxone Hcl
Naloxone Hcl
17 claims
- Famotidine 14
Famotidine
14 claims
- Flumazenil 12
Flumazenil
12 claims
- Humira(Cf) 12
Humira(Cf)
12 claims
| Drug | Claims |
|---|---|
| Midazolam Hcl Midazolam Hcl/Pf | 39 |
| Fentanyl Citrate Fentanyl Citrate/Pf | 28 |
| Omeprazole | 24 |
| Sodium Chloride 0.9 % Sodium Chloride | 21 |
| Naloxone Hcl | 17 |
| Famotidine | 14 |
| Flumazenil | 12 |
| Humira(Cf) Adalimumab | 12 |
| Suprep "Sodium | N/A |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gastroenterology Physician Overview
How Rafael Medina-Prieto fits within the Gastroenterology Physician landscape nationally.
16,567
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider
Rafael Medina-Prieto's 289 claims are below the specialty average of 833.
Nearby Gastroenterology Physician Providers in Puerto Rico
Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as Medina-Prieto.
Dr. Yamilka Abreu Delgado
MD
Humacao, PR
Dr. Melvyn Acosta
M.D.
Hato Rey, PR
Dr. Mamie Annexy Lopez
MD
Manati, PR
Dr. Ivan Antunez Gonzalez
M.D.
Guaynabo, PR
Dr. Nestor Aponte-Reyes
MD
Manati, PR
Compare Gastroenterology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Puerto Rico medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Gastroenterology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Rafael Medina-Prieto's specialty? ▼
Rafael Medina-Prieto specializes in Gastroenterology Physician and practices in Cayey, Puerto Rico.
How much does Rafael Medina-Prieto prescribe under Medicare Part D? ▼
In 2023, Rafael Medina-Prieto wrote 289 Medicare Part D claims totaling $294K in drug costs for 100 beneficiaries.
Where is Rafael Medina-Prieto located? ▼
Rafael Medina-Prieto is located at 150 CALLE LUCIA VAZQUEZ S, Cayey, PR, 00736. Phone: (787) 263-7885.
What is Rafael Medina-Prieto's NPI number? ▼
Rafael Medina-Prieto's National Provider Identifier (NPI) is 1235660762, issued on 03/26/2017.
Does Rafael Medina-Prieto prescribe more brand-name or generic drugs? ▼
Rafael Medina-Prieto's prescribing is 36% brand-name and 64% generic drugs by claim count, with $287K in brand drug costs.
How many Gastroenterology Physician providers are there in the US? ▼
There are 16,567 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 833 Medicare Part D claims per year.
What drugs does Rafael Medina-Prieto prescribe most often? ▼
Based on 2023 Medicare Part D data, Rafael Medina-Prieto's most frequently prescribed drugs include Midazolam Hcl, Fentanyl Citrate, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rafael Medina-Prieto accept Medicare? ▼
Rafael Medina-Prieto appears in CMS Medicare data with 289 Part D claims and 100 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rafael Medina-Prieto's credentials? ▼
Rafael Medina-Prieto's NPI is 1235660762. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.