NPI registry status
Active
2026 NPPES data Medical Oncology Physician NPI 1851496061 MD
Verify on CMS → Patricia Defusco, MD
Medical Oncology Physician in Avon, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,815 in Medical Oncology 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
851
Medicare Part D claims · 189 beneficiaries · Medical Oncology Physician avg: 689
MIPS score
86.4/100
▲ 3 pts above national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Patricia Defusco, MD reported a CMS MIPS final score of 86.4/100 - above the 83.1 national average - and filed 851 Medicare Part D claims in 2023.
- 86.4/100
- MIPS score · +3 vs avg
- 851
- Part D claims, 2023
- 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.
Patricia Defusco, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
86 Top 48% higher than 52% 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 Patricia Defusco, MD sits
This provider among medical oncology physician peers
Across the 1,527 medical oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Patricia Defusco, MD writes more Part D claims than 67% of them and scores higher on MIPS quality than 54% - placing this provider in the high-volume, high-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 medical oncology physician peer from a representative sample of 60; the gold marker is Patricia Defusco, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Patricia Defusco, 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 Patricia Defusco, MD?
High performer (top quartile)Primary specialty
Medical Oncology Physician
Medicare Part D claims
851 24% vs specialty avg
MIPS final score
86.4/100 3.3 pts vs avg
Specialty distribution in Connecticut
How Medical Oncology Physician compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Patricia Defusco, MD's 2023 MIPS final score plotted against the Medical Oncology Physician national average
- MIPS Final Score
- 86.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Medical Oncology Physician) - 86.4/100 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).
Patricia Defusco, MD appears in the CMS NPPES registry as a Medical Oncology Physician provider holding MD credentials at 80 FISHER DRIVE, Avon, CT, 06001, with a listed phone of (860) 674-0088. NPI 1851496061 was issued on 09/13/2006.
Medicare Part D records for calendar year 2023 show 851 prescription claims written by this provider, covering 189 Medicare beneficiaries and totaling roughly $1.4 million in drug spend, with an opioid prescribing rate of 3.9%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 86.4/100 for the 2023 performance year (Quality 82, Cost 43), compared with the national average of 83.1.
Medical Oncology Physician is a narrow specialty nationwide, with 3,815 enrolled providers across 53 states and an average of 689 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 | 1851496061 |
|---|---|
| Specialty | Medical Oncology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 09/13/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
86.4127
Final Score
Avg: 83.1
81.9936
Quality
43.0396
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Patricia Defusco, 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.
Hartford Hospital
★★★★☆ 4/5
Avon, CT
Acute Care Hospitals
CMS CCN: 070025
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
851
Total Claims
$1.4M
Total Drug Cost
189
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,864
- Total Day Supply
- 53,185
- Generic Drug Cost
- $27K
- Opioid Claims
- 33 (3.9% rate)
- Antibiotic Claims
- 24
Patient Demographics
- Average Patient Age
- 73.9 years
- Avg HCC Risk Score
- 1.52
- Gender Split
- 100% female / 0% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Patricia Defusco, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Anastrozole
Anastrozole
324 claims
- Letrozole
Letrozole
140 claims
- Verzenio 82
Verzenio
82 claims
- Exemestane 26
Exemestane
26 claims
- Oxycodone Hcl 25
Oxycodone Hcl
25 claims
- Gabapentin 21
Gabapentin
21 claims
- Ondansetron Hcl 21
Ondansetron Hcl
21 claims
- Ondansetron Odt 21
Ondansetron Odt
21 claims
| Drug | Claims |
|---|---|
| Anastrozole | 324 |
| Letrozole | 140 |
| Verzenio Abemaciclib | 82 |
| Exemestane | 26 |
| Oxycodone Hcl | 25 |
| Gabapentin | 21 |
| Ondansetron Hcl | 21 |
| Ondansetron Odt Ondansetron | 21 |
| Lorazepam | 20 |
| Tamoxifen Citrate | 20 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Medical Oncology Physician Overview
How Patricia Defusco, MD fits within the Medical Oncology Physician landscape nationally.
3,815
Medical Oncology Physician Providers in US
53
States with Medical Oncology Physician
689
Avg Claims per Provider
Patricia Defusco, MD's 851 claims are above the specialty average of 689.
Nearby Medical Oncology Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Defusco.
Dr. Ana Acuna-Villaorduna
MD
Farmington, CT
Dr. Omar Al Asad
MD
New Haven, CT
Myra Barginear
Westport, CT
Dr. Joshua Bilenker
M.D.
Stamford, CT
Dr. Kathleen Bober-Sorcinelli
MD
Meriden, CT
Compare Medical Oncology 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Medical Oncology 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 Patricia Defusco, MD's specialty? ▼
Patricia Defusco, MD specializes in Medical Oncology Physician and practices in Avon, Connecticut. Credentials: MD.
How much does Patricia Defusco, MD prescribe under Medicare Part D? ▼
In 2023, Patricia Defusco, MD wrote 851 Medicare Part D claims totaling $1.4M in drug costs for 189 beneficiaries.
What is Patricia Defusco, MD's Medicare quality score? ▼
Patricia Defusco, MD has a CMS MIPS Final Score of 86.4/100 (Quality: 82, Cost: 43). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Patricia Defusco, MD located? ▼
Patricia Defusco, MD is located at 80 FISHER DRIVE, Avon, CT, 06001. Phone: (860) 674-0088.
What is Patricia Defusco, MD's NPI number? ▼
Patricia Defusco, MD's National Provider Identifier (NPI) is 1851496061, issued on 09/13/2006.
Does Patricia Defusco, MD prescribe opioids? ▼
Yes, Patricia Defusco, MD had 33 opioid claims in 2023 with an opioid prescribing rate of 3.9%.
How many Medical Oncology Physician providers are there in the US? ▼
There are 3,815 Medical Oncology Physician providers across 53 states in the US. The average Medical Oncology Physician provider writes 689 Medicare Part D claims per year.
What drugs does Patricia Defusco, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Patricia Defusco, MD's most frequently prescribed drugs include Anastrozole, Letrozole, Verzenio. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Patricia Defusco, MD accept Medicare? ▼
Patricia Defusco, MD appears in CMS Medicare data with 851 Part D claims and 189 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Patricia Defusco, MD's credentials? ▼
Patricia Defusco, MD's NPI is 1851496061 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.
- 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.