NPI registry status
Active
2026 NPPES data Otolaryngology Physician NPI 1598751372 M.D.
Verify on CMS → Gregory Bonaiuto, M.D.
Otolaryngology Physician in Hartford, 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 10,895 in Otolaryngology 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
370
Medicare Part D claims · 171 beneficiaries · Otolaryngology Physician avg: 509
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
73.2/100
▼ 10 pts below national avg 83.1 · Mid-tier
Industry payments
$88.16
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
Gregory Bonaiuto, M.D. reported a CMS MIPS final score of 73.2/100 - below the 83.1 national average - and filed 370 Medicare Part D claims in 2023.
- 73.2/100
- MIPS score · -10 vs avg
- 370
- Part D claims, 2023
- 89%
- 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.
Gregory Bonaiuto, 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
73 11th percentile higher than 11% 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 Gregory Bonaiuto, M.D. sits
This provider among otolaryngology physician peers
Across the 3,669 otolaryngology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Gregory Bonaiuto, M.D. writes more Part D claims than 43% of them and scores higher on MIPS quality than 16% - placing this provider in the lower-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 otolaryngology physician peer from a representative sample of 60; the gold marker is Gregory Bonaiuto, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Gregory Bonaiuto, 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 Gregory Bonaiuto, M.D.?
Below national averagePrimary specialty
Otolaryngology Physician
Medicare Part D claims
370 27% vs specialty avg
MIPS final score
73.2/100 9.9 pts vs avg
Specialty distribution in Connecticut
How Otolaryngology Physician compares to other specialties among Connecticut providers
Medicare quality performance, MIPS
Gregory Bonaiuto, M.D.'s 2023 MIPS final score plotted against the Otolaryngology Physician national average
- MIPS Final Score
- 73.2/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Otolaryngology Physician) - 73.2/100 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).
Gregory Bonaiuto, M.D. appears in the CMS NPPES registry as a Otolaryngology Physician provider holding M.D. credentials at 85 SEYMOUR ST, Hartford, CT, 06106, with a listed phone of (860) 493-1950. NPI 1598751372 was issued on 09/27/2005.
Medicare Part D records for calendar year 2023 show 370 prescription claims written by this provider, covering 171 Medicare beneficiaries and totaling roughly $99K in drug spend, split 11% brand-name and 89% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 73.2/100 for the 2023 performance year (Quality 55.7, Cost 92.6), compared with the national average of 83.1.
Otolaryngology Physician is a mid-sized specialty nationwide, with 10,895 enrolled providers across 54 states and an average of 509 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 | 1598751372 |
|---|---|
| Specialty | Otolaryngology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 09/27/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
73.2408
Final Score
Avg: 83.1
55.7397
Quality
92.563
Cost
55
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Gregory Bonaiuto, 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.
Connecticut Ear, Nose And Throat Associates, P.C.
Wethersfield, CT
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 Gregory Bonaiuto, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$88
Largest payer
Inspire Medical Systems, 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
Gregory Bonaiuto, M.D. - brand share 11.0%
Otolaryngology Physician average
11% brand-name claims vs 89% generic, on 370 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.
370
Total Claims
$99K
Total Drug Cost
171
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 501
- Total Day Supply
- 10,989
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $91K
- Generic Drug Cost
- $8K
- Antibiotic Claims
- 64
Patient Demographics
- Average Patient Age
- 75.3 years
- Avg HCC Risk Score
- 1.16
- Gender Split
- 55% female / 45% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Gregory Bonaiuto, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Fluticasone Propio…
Fluticasone Propionate
54 claims
- Prednisone
Prednisone
42 claims
- Montelukast Sodium
Montelukast Sodium
32 claims
- Azithromycin
Azithromycin
29 claims
- Ofloxacin
Ofloxacin
28 claims
- Ipratropium Bromide
Ipratropium Bromide
24 claims
- Omeprazole 20
Omeprazole
20 claims
- Dupixent Syringe 13
Dupixent Syringe
13 claims
| Drug | Claims |
|---|---|
| Fluticasone Propionate | 54 |
| Prednisone | 42 |
| Montelukast Sodium | 32 |
| Azithromycin | 29 |
| Ofloxacin | 28 |
| Ipratropium Bromide | 24 |
| Omeprazole | 20 |
| Dupixent Syringe Dupilumab | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Otolaryngology Physician Overview
How Gregory Bonaiuto, M.D. fits within the Otolaryngology Physician landscape nationally.
10,895
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
509
Avg Claims per Provider
Gregory Bonaiuto, M.D.'s 370 claims are below the specialty average of 509.
Nearby Otolaryngology Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Bonaiuto.
Dr. Paul Alberti
M.D.
North Haven, CT
Dr. Erin Alday
MD
Farmington, CT
Ali Alkabasi
Farmington, CT
Dr. Abdel Allam
M.D.
Bristol, CT
Dr. David Astrachan
MD
Hamden, CT
Compare Otolaryngology 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 Otolaryngology 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 Connecticut
Frequently Asked Questions
What is Gregory Bonaiuto, M.D.'s specialty? ▼
Gregory Bonaiuto, M.D. specializes in Otolaryngology Physician and practices in Hartford, Connecticut. Credentials: M.D..
How much does Gregory Bonaiuto, M.D. prescribe under Medicare Part D? ▼
In 2023, Gregory Bonaiuto, M.D. wrote 370 Medicare Part D claims totaling $99K in drug costs for 171 beneficiaries.
What is Gregory Bonaiuto, M.D.'s Medicare quality score? ▼
Gregory Bonaiuto, M.D. has a CMS MIPS Final Score of 73.2/100 (Quality: 55.7, Cost: 92.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Gregory Bonaiuto, M.D. located? ▼
Gregory Bonaiuto, M.D. is located at 85 SEYMOUR ST, Hartford, CT, 06106. Phone: (860) 493-1950.
What is Gregory Bonaiuto, M.D.'s NPI number? ▼
Gregory Bonaiuto, M.D.'s National Provider Identifier (NPI) is 1598751372, issued on 09/27/2005.
Does Gregory Bonaiuto, M.D. prescribe more brand-name or generic drugs? ▼
Gregory Bonaiuto, M.D.'s prescribing is 11% brand-name and 89% generic drugs by claim count, with $91K in brand drug costs.
How many Otolaryngology Physician providers are there in the US? ▼
There are 10,895 Otolaryngology Physician providers across 54 states in the US. The average Otolaryngology Physician provider writes 509 Medicare Part D claims per year.
What drugs does Gregory Bonaiuto, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Gregory Bonaiuto, M.D.'s most frequently prescribed drugs include Fluticasone Propionate, Prednisone, Montelukast Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Gregory Bonaiuto, M.D. accept Medicare? ▼
Gregory Bonaiuto, M.D. appears in CMS Medicare data with 370 Part D claims and 171 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gregory Bonaiuto, M.D.'s credentials? ▼
Gregory Bonaiuto, M.D.'s NPI is 1598751372 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.