NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1093961609 M.D.
Verify on CMS → Mirelis Acosta, M.D.
Internal Medicine Physician in San Juan, 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 172,858 in Internal 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
880
Medicare Part D claims · 137 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
67.1/100
▼ 16 pts below national avg 83.1 · Mid-tier
Industry payments
$13.7K
169 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
Mirelis Acosta, M.D. reported a CMS MIPS final score of 67.1/100 - below the 83.1 national average - and filed 880 Medicare Part D claims in 2023.
- 67.1/100
- MIPS score · -16 vs avg
- 880
- Part D claims, 2023
- 76%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Mirelis Acosta, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
67 7th percentile higher than 7% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Mirelis Acosta, M.D. sits
This provider among internal medicine physician peers
Across the 36,260 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Mirelis Acosta, M.D. writes more Part D claims than 53% of them and scores higher on MIPS quality than 8% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one internal medicine physician peer from a representative sample of 60; the gold marker is Mirelis Acosta, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Mirelis Acosta, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Mirelis Acosta, M.D.?
Below national averagePrimary specialty
Internal Medicine Physician
Medicare Part D claims
880 68% vs specialty avg
MIPS final score
67.1/100 16 pts vs avg
Specialty distribution in Puerto Rico
How Internal Medicine Physician compares to other specialties among Puerto Rico providers
Medicare quality performance, MIPS
Mirelis Acosta, M.D.'s 2023 MIPS final score plotted against the Internal Medicine Physician national average
- MIPS Final Score
- 67.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Internal Medicine Physician) - 67.1/100 vs national avg 83.1
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).
Mirelis Acosta, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at AVE 359 DE DIEGO, San Juan, PR, 00927, with a listed phone of (787) 722-1248. NPI 1093961609 was issued on 08/14/2008.
Medicare Part D records for calendar year 2023 show 880 prescription claims written by this provider, covering 137 Medicare beneficiaries and totaling roughly $1.6 million in drug spend, split 24% brand-name and 76% generic by claim count, with an opioid prescribing rate of 3.4%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 67.1/100 for the 2023 performance year (Quality 88.7, Cost 68.2), compared with the national average of 83.1.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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 | 1093961609 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 08/14/2008 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
67.0938
Final Score
Avg: 83.1
88.7302
Quality
68.249
Cost
0
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Mirelis Acosta, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Hospital Espanol Auxilio Mutuo DE Puerto Rico, Inc.
San Juan, PR
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Mirelis Acosta, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$13.7K
Largest payer
Eisai Inc.
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
Mirelis Acosta, M.D. - brand share 24.0%
Internal Medicine Physician average
24% brand-name claims vs 76% generic, on 880 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.
880
Total Claims
$1.6M
Total Drug Cost
137
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,129
- Total Day Supply
- 30,915
- Brand vs Generic
- 24% brand / 76% generic
- Brand Drug Cost
- $1.5M
- Generic Drug Cost
- $74K
- Opioid Claims
- 30 (3.4% rate)
- Antibiotic Claims
- 14
Patient Demographics
- Average Patient Age
- 71.3 years
- Avg HCC Risk Score
- 2.36
- Gender Split
- 71% female / 29% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mirelis Acosta, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Anastrozole
Anastrozole
148 claims
- Pantoprazole Sodium
Pantoprazole Sodium
94 claims
- Ondansetron Hcl
Ondansetron Hcl
68 claims
- Letrozole 39
Letrozole
39 claims
- Gabapentin 28
Gabapentin
28 claims
- Aprepitant 22
Aprepitant
22 claims
- Creon 22
Creon
22 claims
- Famotidine 20
Famotidine
20 claims
| Drug | Claims |
|---|---|
| Anastrozole | 148 |
| Pantoprazole Sodium | 94 |
| Ondansetron Hcl | 68 |
| Letrozole | 39 |
| Gabapentin | 28 |
| Aprepitant | 22 |
| Creon Lipase/Protease/Amylase | 22 |
| Famotidine | 20 |
| Ibrance Palbociclib | 20 |
| Sodium Chloride 0.9 % Sodium Chloride | 19 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Mirelis Acosta, M.D. fits within the Internal Medicine Physician landscape nationally.
172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Mirelis Acosta, M.D.'s 880 claims are below the specialty average of 2,716.
Nearby Internal 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 Acosta.
Dr. Jamil Abouelhossen
MD
Fajardo, PR
Dr. James Abrams
MD
San Juan, PR
Fernando Abreu Gonzalez
San Juan, PR
Dr. Jumana Abuomar
M.D.
Canovanas, PR
Dr. Lourdes Acevedo
M.D.
Aguada, PR
Compare Internal 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 Internal 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
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
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 Mirelis Acosta, M.D.'s specialty? ▼
Mirelis Acosta, M.D. specializes in Internal Medicine Physician and practices in San Juan, Puerto Rico. Credentials: M.D..
How much does Mirelis Acosta, M.D. prescribe under Medicare Part D? ▼
In 2023, Mirelis Acosta, M.D. wrote 880 Medicare Part D claims totaling $1.6M in drug costs for 137 beneficiaries.
What is Mirelis Acosta, M.D.'s Medicare quality score? ▼
Mirelis Acosta, M.D. has a CMS MIPS Final Score of 67.1/100 (Quality: 88.7, Cost: 68.2). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mirelis Acosta, M.D. located? ▼
Mirelis Acosta, M.D. is located at AVE 359 DE DIEGO, San Juan, PR, 00927. Phone: (787) 722-1248.
What is Mirelis Acosta, M.D.'s NPI number? ▼
Mirelis Acosta, M.D.'s National Provider Identifier (NPI) is 1093961609, issued on 08/14/2008.
Does Mirelis Acosta, M.D. prescribe more brand-name or generic drugs? ▼
Mirelis Acosta, M.D.'s prescribing is 24% brand-name and 76% generic drugs by claim count, with $1.5M in brand drug costs.
Does Mirelis Acosta, M.D. prescribe opioids? ▼
Yes, Mirelis Acosta, M.D. had 30 opioid claims in 2023 with an opioid prescribing rate of 3.4%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Mirelis Acosta, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Mirelis Acosta, M.D.'s most frequently prescribed drugs include Anastrozole, Pantoprazole Sodium, Ondansetron Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mirelis Acosta, M.D. accept Medicare? ▼
Mirelis Acosta, M.D. appears in CMS Medicare data with 880 Part D claims and 137 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mirelis Acosta, M.D.'s credentials? ▼
Mirelis Acosta, M.D.'s NPI is 1093961609 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.