CARLOS ACUNA-VILLAORDUNA
Internal Medicine Physician in BOSTON, Massachusetts. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What stands out: CARLOS ACUNA-VILLAORDUNA filed 365 Medicare Part D claims in 2023 across BOSTON, Massachusetts. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.
CARLOS ACUNA-VILLAORDUNA practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
CARLOS ACUNA-VILLAORDUNA at a glance
Quality data not reportedPrimary specialty
Medicare Part D claims
Specialty distribution in Massachusetts
How Internal Medicine Physician compares to other specialties among Massachusetts providers
Internal Medicine Physician share within Massachusetts
Internal Medicine Physician is one of the more visible NUCC categories in Massachusetts
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Specialty board-certification context
Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)
- Est. board-certified rate
- 78%
- Internal Medicine Physician ABMS/AOA estimate
Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate
Verify credentials
- Verify via ABMS free public lookup
- Verify via AOA osteopathic boards
- Specialty volume Internal Medicine Physician US NPIs
Specialty board-certified rate — Internal Medicine Physician estimate
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus Maintenance of Certification cycles. CMS does not publish a per-provider board-certification field; the figure shown is the specialty-level estimated rate from ABMS / AOA reference data.
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).
CARLOS ACUNA-VILLAORDUNA is a Internal Medicine Physician provider practicing in BOSTON, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1598922742. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.
CARLOS ACUNA-VILLAORDUNA appears in the CMS NPPES registry as a Internal Medicine Physician provider at 725 ALBANY ST, BOSTON, MA, 02118, with a listed phone of (617) 414-3611. NPI 1598922742 was issued on 05/16/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ACUNA-VILLAORDUNA most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.
Medicare Part D records for calendar year 2023 show 365 prescription claims written by this provider, covering 37 Medicare beneficiaries and totaling roughly $533K in drug spend, split 41% brand-name and 59% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.
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 | 1598922742 |
|---|---|
| Specialty | Internal Medicine Physician |
| Gender | Male |
| NPI Issued | 05/16/2008 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm CARLOS ACUNA-VILLAORDUNA's current license status, disciplinary history, and board certifications with the Massachusetts Board of Registration in Medicine in Massachusetts before relying on this page for a clinical or care decision.
How we sourced this profile
Hospital and facility affiliations
Facilities where CARLOS ACUNA-VILLAORDUNA 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.
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 CARLOS ACUNA-VILLAORDUNA. Source: openpaymentsdata.cms.gov.
Total received
$154
Largest payer
Regeneron Healthcare Solutions, 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.
License & disciplinary context — Massachusetts BORIM 2023 annual report
Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~38K Massachusetts medical licensees in 2023 — they are NOT specific to CARLOS ACUNA-VILLAORDUNA. To verify CARLOS ACUNA-VILLAORDUNA's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
BORIM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
41% brand-name claims vs 59% generic, on 365 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.
Prescribing Breakdown
- 30-Day Fills
- 377
- Total Day Supply
- 10,769
- Brand vs Generic
- 41% brand / 59% generic
- Brand Drug Cost
- $518K
- Generic Drug Cost
- $15K
- Antibiotic Claims
- 19
Patient Demographics
- Average Patient Age
- 62.8 years
- Avg HCC Risk Score
- 2.35
- Gender Split
- 46% female / 54% male
- Age Distribution
- <65: 18, 65-74: 19, 75-84: 0, 85+: 0
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Biktarvy Bictegrav/Emtricit/Tenofov Ala | 91 |
| Isoniazid | 23 |
| Rifampin | 17 |
| Triumeq Abacavir/Dolutegravir/Lamivudi | 14 |
| Ethambutol Hcl | 13 |
| Gabapentin | 12 |
| Levofloxacin | 12 |
| Prezista Darunavir | 12 |
| Ritonavir | 12 |
| Aripiprazole | 11 |
* 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 CARLOS ACUNA-VILLAORDUNA fits within the Internal Medicine Physician landscape nationally.
CARLOS ACUNA-VILLAORDUNA's 365 claims are below the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as ACUNA-VILLAORDUNA.
Compare Internal Medicine Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
What is CARLOS ACUNA-VILLAORDUNA's specialty? ▼
How much does CARLOS ACUNA-VILLAORDUNA prescribe under Medicare Part D? ▼
Where is CARLOS ACUNA-VILLAORDUNA located? ▼
What is CARLOS ACUNA-VILLAORDUNA's NPI number? ▼
Does CARLOS ACUNA-VILLAORDUNA prescribe more brand-name or generic drugs? ▼
How many Internal Medicine Physician providers are there in the US? ▼
What drugs does CARLOS ACUNA-VILLAORDUNA prescribe most often? ▼
Does CARLOS ACUNA-VILLAORDUNA accept Medicare? ▼
How can I verify CARLOS ACUNA-VILLAORDUNA's credentials? ▼
Data Sources
- 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