NPI registry status
Active
2026 NPPES data Nephrology Physician NPI 1528007788 M.D.
Verify on CMS → Rafael Miranda Malave, M.D.
Nephrology Physician in Carolina, 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 10,534 in Nephrology 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
736
Medicare Part D claims · 163 beneficiaries · Nephrology Physician avg: 1K
Generic prescribing
89%
generic claims · 11% 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 Miranda Malave, M.D. filed 736 Medicare Part D claims in 2023 as a Nephrology Physician in Carolina, Puerto Rico, prescribing 89% generic.
- 736
- Part D claims, 2023
- 89%
- 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 Miranda Malave, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
736 Top 29% higher than 71% 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 Miranda Malave, M.D. 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 Miranda Malave, M.D.?
Quality data not reportedPrimary specialty
Nephrology Physician
Medicare Part D claims
736 49% vs specialty avg
Specialty distribution in Puerto Rico
How Nephrology 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 Nephrology 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 Miranda Malave, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at B5 CALLE CAMARERO, Carolina, PR, 00987, with a listed phone of (787) 762-5316. NPI 1528007788 was issued on 06/05/2006.
Medicare Part D records for calendar year 2023 show 736 prescription claims written by this provider, covering 163 Medicare beneficiaries and totaling roughly $28K in drug spend, split 11% brand-name and 89% generic by claim count.
Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 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 | 1528007788 |
|---|---|
| Specialty | Nephrology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/05/2006 |
Brand vs generic prescribing mix · Typical
Rafael Miranda Malave, M.D. - brand share 11.0%
Nephrology Physician average
11% brand-name claims vs 89% generic, on 736 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.
736
Total Claims
$28K
Total Drug Cost
163
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 901
- Total Day Supply
- 25,235
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $13K
- Generic Drug Cost
- $15K
- Antibiotic Claims
- 60
Patient Demographics
- Average Patient Age
- 77.0 years
- Avg HCC Risk Score
- 2.86
- Gender Split
- 50% female / 50% male
- Age Distribution
- <65: 16, 65-74: 40, 75-84: 78, 85+: 29
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Rafael Miranda Malave, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Sevelamer Carbonate
Sevelamer Carbonate
48 claims
- Ciprofloxacin Hcl
Ciprofloxacin Hcl
41 claims
- Irbesartan
Irbesartan
38 claims
- Doxazosin Mesylate
Doxazosin Mesylate
35 claims
- Losartan Potassium
Losartan Potassium
32 claims
- Allopurinol
Allopurinol
26 claims
- Calcium Acetate
Calcium Acetate
25 claims
- Diltiazem 24hr Er …
Diltiazem 24hr Er (Cd)
25 claims
| Drug | Claims |
|---|---|
| Sevelamer Carbonate | 48 |
| Ciprofloxacin Hcl | 41 |
| Irbesartan | 38 |
| Doxazosin Mesylate | 35 |
| Losartan Potassium | 32 |
| Allopurinol | 26 |
| Calcium Acetate | 25 |
| Diltiazem 24hr Er (Cd) Diltiazem Hcl | 25 |
| Gabapentin | 24 |
| Clonidine Hcl | 22 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nephrology Physician Overview
How Rafael Miranda Malave, M.D. fits within the Nephrology Physician landscape nationally.
10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider
Rafael Miranda Malave, M.D.'s 736 claims are below the specialty average of 1,454.
Nearby Nephrology Physician Providers in Puerto Rico
Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as Miranda Malave.
Dr. Marco Albarran Portilla
MD
Ponce, PR
Dr. Praxedes Alvarez
M.D.
Ponce, PR
Dr. Sergio Alvarez Torres
M.D
Adjuntas, PR
Dr. Krystahl Andujar-Rivera
MD
Carolina, PR
Dr. Alberto Arevalo Roig
MD
Arecibo, PR
Compare Nephrology 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 Nephrology 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 Miranda Malave, M.D.'s specialty? ▼
Rafael Miranda Malave, M.D. specializes in Nephrology Physician and practices in Carolina, Puerto Rico. Credentials: M.D..
How much does Rafael Miranda Malave, M.D. prescribe under Medicare Part D? ▼
In 2023, Rafael Miranda Malave, M.D. wrote 736 Medicare Part D claims totaling $28K in drug costs for 163 beneficiaries.
Where is Rafael Miranda Malave, M.D. located? ▼
Rafael Miranda Malave, M.D. is located at B5 CALLE CAMARERO, Carolina, PR, 00987. Phone: (787) 762-5316.
What is Rafael Miranda Malave, M.D.'s NPI number? ▼
Rafael Miranda Malave, M.D.'s National Provider Identifier (NPI) is 1528007788, issued on 06/05/2006.
Does Rafael Miranda Malave, M.D. prescribe more brand-name or generic drugs? ▼
Rafael Miranda Malave, M.D.'s prescribing is 11% brand-name and 89% generic drugs by claim count, with $13K in brand drug costs.
How many Nephrology Physician providers are there in the US? ▼
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does Rafael Miranda Malave, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Rafael Miranda Malave, M.D.'s most frequently prescribed drugs include Sevelamer Carbonate, Ciprofloxacin Hcl, Irbesartan. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rafael Miranda Malave, M.D. accept Medicare? ▼
Rafael Miranda Malave, M.D. appears in CMS Medicare data with 736 Part D claims and 163 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rafael Miranda Malave, M.D.'s credentials? ▼
Rafael Miranda Malave, M.D.'s NPI is 1528007788 with credentials M.D.. 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.