NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1538235247 MD
Verify on CMS → Madeline Asencio-Montalvo, MD
Emergency Medicine Physician in Cabo Rojo, 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 64,398 in Emergency Medicine 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
3K
Medicare Part D claims · 89 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
81%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$114.4
2 payments · CMS Open Payments (Sunshine Act)
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
Madeline Asencio-Montalvo, MD filed 3,182 Medicare Part D claims in 2023 as a Emergency Medicine Physician in Cabo Rojo, Puerto Rico, prescribing 81% generic.
- 3K
- Part D claims, 2023
- 81%
- generic prescribing
- $114.4
- industry payments (Sunshine Act)
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.
Madeline Asencio-Montalvo, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,182 Top 11% higher than 89% 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)
Madeline Asencio-Montalvo, MD 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 Madeline Asencio-Montalvo, MD?
Quality data not reportedPrimary specialty
Emergency Medicine Physician
Medicare Part D claims
3,182 9× vs specialty avg
Specialty distribution in Puerto Rico
How Emergency Medicine 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 Emergency Medicine 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).
Madeline Asencio-Montalvo, MD appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding MD credentials at CALLE CARBONELL 56, Cabo Rojo, PR, 00623, with a listed phone of (787) 851-3965. NPI 1538235247 was issued on 11/27/2006.
Medicare Part D records for calendar year 2023 show 3,182 prescription claims written by this provider, covering 89 Medicare beneficiaries and totaling roughly $236K in drug spend, split 17% brand-name and 81% generic by claim count.
Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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 | 1538235247 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 11/27/2006 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Madeline Asencio-Montalvo, MD. Source: openpaymentsdata.cms.gov.
Total received
$114
Largest payer
Lilly USA, LLC
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Typical
Madeline Asencio-Montalvo, MD - brand share 17.0%
Emergency Medicine Physician average
17% brand-name claims vs 81% generic, on 3,182 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.
3,182
Total Claims
$236K
Total Drug Cost
89
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,725
- Total Day Supply
- 134,660
- Brand vs Generic
- 17% brand / 81% generic
- Brand Drug Cost
- $203K
- Generic Drug Cost
- $32K
- Antibiotic Claims
- 75
Patient Demographics
- Average Patient Age
- 71.9 years
- Avg HCC Risk Score
- 1.96
- Gender Split
- 60% female / 40% male
- Age Distribution
- <65: 21, 65-74: 32, 75-84: 19, 85+: 17
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Madeline Asencio-Montalvo, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
207 claims
- Alendronate Sodium
Alendronate Sodium
174 claims
- Gabapentin
Gabapentin
159 claims
- Losartan Potassium
Losartan Potassium
115 claims
- Metformin Hcl
Metformin Hcl
114 claims
- Simvastatin
Simvastatin
108 claims
- Pantoprazole Sodium
Pantoprazole Sodium
106 claims
- Cilostazol
Cilostazol
90 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 207 |
| Alendronate Sodium | 174 |
| Gabapentin | 159 |
| Losartan Potassium | 115 |
| Metformin Hcl | 114 |
| Simvastatin | 108 |
| Pantoprazole Sodium | 106 |
| Cilostazol | 90 |
| Glimepiride | 88 |
| Atorvastatin Calcium | 82 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How Madeline Asencio-Montalvo, MD fits within the Emergency Medicine Physician landscape nationally.
64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider
Madeline Asencio-Montalvo, MD's 3,182 claims are above the specialty average of 352.
Nearby Emergency Medicine Physician Providers in Puerto Rico
Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as Asencio-Montalvo.
Dr. Rachelly Abreu
M.D.
Bayamon, PR
Thaer Abukhalil
Carolina, PR
Dr. Mario Acosta Duarte
M.D.
San Juan, PR
Edil Agosto Diaz
Carolina, PR
Dr. Miguel Agrait Gonzalez
M.D.
Bayamon, PR
Compare Emergency Medicine 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 Emergency Medicine 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.
Healthcare Guides
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How to Find a Doctor
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Puerto Rico
Frequently Asked Questions
What is Madeline Asencio-Montalvo, MD's specialty? ▼
Madeline Asencio-Montalvo, MD specializes in Emergency Medicine Physician and practices in Cabo Rojo, Puerto Rico. Credentials: MD.
How much does Madeline Asencio-Montalvo, MD prescribe under Medicare Part D? ▼
In 2023, Madeline Asencio-Montalvo, MD wrote 3,182 Medicare Part D claims totaling $236K in drug costs for 89 beneficiaries.
Where is Madeline Asencio-Montalvo, MD located? ▼
Madeline Asencio-Montalvo, MD is located at CALLE CARBONELL 56, Cabo Rojo, PR, 00623. Phone: (787) 851-3965.
What is Madeline Asencio-Montalvo, MD's NPI number? ▼
Madeline Asencio-Montalvo, MD's National Provider Identifier (NPI) is 1538235247, issued on 11/27/2006.
Does Madeline Asencio-Montalvo, MD prescribe more brand-name or generic drugs? ▼
Madeline Asencio-Montalvo, MD's prescribing is 17% brand-name and 81% generic drugs by claim count, with $203K in brand drug costs.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does Madeline Asencio-Montalvo, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Madeline Asencio-Montalvo, MD's most frequently prescribed drugs include Levothyroxine Sodium, Alendronate Sodium, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Madeline Asencio-Montalvo, MD accept Medicare? ▼
Madeline Asencio-Montalvo, MD appears in CMS Medicare data with 3,182 Part D claims and 89 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Madeline Asencio-Montalvo, MD's credentials? ▼
Madeline Asencio-Montalvo, MD's NPI is 1538235247 with credentials MD. 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.