2026 NPPES data Internal Medicine Physician NPI 1699895243 MD
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ALVARO ALONSO APARICIO, MD

Internal Medicine Physician in WORCESTER, Massachusetts. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
732
Medicare Part D claims · 139 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.0218/100
▲ 14 pts above national avg 83.1 · [object Object]

What the federal data shows

ALVARO ALONSO APARICIO, MD reported a CMS MIPS final score of 97.0218/100 — above the 83.1 national average — and filed 732 Medicare Part D claims in 2023.

97.0218/100
MIPS score · +14 vs avg
732
Part D claims, 2023
90%
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.

ALVARO ALONSO APARICIO, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

97 Top 15% higher than 85% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

Board certification likely (heuristic — not verified)

ALVARO ALONSO APARICIO, MD 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 ALVARO ALONSO APARICIO, MD?

High performer (top quartile)

NPI registry status

Active

Issued 03/29/2007

NPI 1699895243

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

732 73% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

97.0218/100 13.921800000000005% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Massachusetts

How Internal Medicine Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Internal Medicine Physician share within Massachusetts

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within Massachusetts

Medicare quality performance — MIPS

ALVARO ALONSO APARICIO, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average

High performer (top quartile)
MIPS Final Score
97.0218/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 97.0218/100 vs national avg 83.1

0%100%National avg83%97%
MIPS final score (Internal Medicine Physician) — 97.0218/100 vs national avg 83.1

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).

ALVARO ALONSO APARICIO, MD is a Internal Medicine Physician provider practicing in WORCESTER, Massachusetts, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1699895243. 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.

ALVARO ALONSO APARICIO, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 55 LAKE AVE N, WORCESTER, MA, 01655, with a listed phone of (508) 334-3452. NPI 1699895243 was issued on 03/29/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ALONSO APARICIO 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 732 prescription claims written by this provider, covering 139 Medicare beneficiaries and totaling roughly $98K in drug spend, split 10% brand-name and 90% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.0218/100 for the 2023 performance year (Quality 78.0983), 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

55 LAKE AVE N
WORCESTER, MA 01655

Provider Details

NPI 1699895243
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 03/29/2007

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

97.0218
Final Score
Avg: 83.1
78.0983
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where ALVARO ALONSO APARICIO, MD 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.

UMASS MEMORIAL MEDICAL GROUP INC
WORCESTER, MA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 ALVARO ALONSO APARICIO, MD. To verify ALVARO ALONSO APARICIO, MD's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases

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 · Typical

ALVARO ALONSO APARICIO, MD — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 732 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.

732
Total Claims
$98K
Total Drug Cost
139
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,585
Total Day Supply
44,493
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$83K
Generic Drug Cost
$15K

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
1.69
Gender Split
33% female / 67% male
Age Distribution
<65: 13, 65-74: 69, 75-84: 44, 85+: 13

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Warfarin Sodium
121
Atorvastatin Calcium
103
Metoprolol Succinate
89
Amlodipine Besylate
43
Lisinopril
39
Eliquis
Apixaban
32
Cilostazol
27
Rosuvastatin Calcium
27
Clopidogrel
Clopidogrel Bisulfate
23
Carvedilol
20

* 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 ALVARO ALONSO APARICIO, MD 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

ALVARO ALONSO APARICIO, MD's 732 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 ALONSO APARICIO.

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ALVARO ALONSO APARICIO, MD's specialty?
ALVARO ALONSO APARICIO, MD specializes in Internal Medicine Physician and practices in WORCESTER, Massachusetts. Credentials: MD.
How much does ALVARO ALONSO APARICIO, MD prescribe under Medicare Part D?
In 2023, ALVARO ALONSO APARICIO, MD wrote 732 Medicare Part D claims totaling $98K in drug costs for 139 beneficiaries.
What is ALVARO ALONSO APARICIO, MD's Medicare quality score?
ALVARO ALONSO APARICIO, MD has a CMS MIPS Final Score of 97.0218/100 (Quality: 78.0983). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ALVARO ALONSO APARICIO, MD located?
ALVARO ALONSO APARICIO, MD is located at 55 LAKE AVE N, WORCESTER, MA, 01655. Phone: (508) 334-3452.
What is ALVARO ALONSO APARICIO, MD's NPI number?
ALVARO ALONSO APARICIO, MD's National Provider Identifier (NPI) is 1699895243, issued on 03/29/2007.
Does ALVARO ALONSO APARICIO, MD prescribe more brand-name or generic drugs?
ALVARO ALONSO APARICIO, MD's prescribing is 10% brand-name and 90% generic drugs by claim count, with $83K in brand drug costs.
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 ALVARO ALONSO APARICIO, MD prescribe most often?
Based on 2023 Medicare Part D data, ALVARO ALONSO APARICIO, MD's most frequently prescribed drugs include Warfarin Sodium, Atorvastatin Calcium, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALVARO ALONSO APARICIO, MD accept Medicare?
ALVARO ALONSO APARICIO, MD appears in CMS Medicare data with 732 Part D claims and 139 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALVARO ALONSO APARICIO, MD's credentials?
ALVARO ALONSO APARICIO, MD's NPI is 1699895243 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

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