NPI registry status
Active
2026 NPPES data Colon & Rectal Surgery Physician NPI 1588830699 D.O
Verify on CMS → JOHN AVERSA, D.O
Colon & Rectal Surgery Physician in HAMDEN, Connecticut. 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
241
Medicare Part D claims · 107 beneficiaries · Colon & Rectal Surgery Physician avg: 196
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
90.7483/100
▲ 8 pts above national avg 83.1 · [object Object]
Industry payments
$1.8K
4 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
JOHN AVERSA, D.O reported a CMS MIPS final score of 90.7483/100 — above the 83.1 national average — and filed 241 Medicare Part D claims in 2023.
- 90.7483/100
- MIPS score · +8 vs avg
- 241
- Part D claims, 2023
- 78%
- 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.
JOHN AVERSA, D.O's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure
91 Top 40% higher than 60% 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
✓
Board certification likely (heuristic — not verified)
JOHN AVERSA, D.O 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 JOHN AVERSA, D.O?
High performer (top quartile)Primary specialty
Colon & Rectal Surgery Physician
Medicare Part D claims
241 23% vs specialty avg
MIPS final score
90.7483/100 7.648300000000006% pts
Specialty distribution in Connecticut
How Colon & Rectal Surgery Physician compares to other specialties among Connecticut providers
Colon & Rectal Surgery Physician share within Connecticut
Medicare quality performance — MIPS
JOHN AVERSA, D.O's 2023 MIPS final score plotted against the Colon & Rectal Surgery Physician national average
- MIPS Final Score
- 90.7483/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Colon & Rectal Surgery Physician) — 90.7483/100 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).
JOHN AVERSA, D.O appears in the CMS NPPES registry as a Colon & Rectal Surgery Physician provider holding D.O credentials at 2200 WHITNEY AVE STE 170, HAMDEN, CT, 06518, with a listed phone of (203) 281-7000. NPI 1588830699 was issued on 05/08/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AVERSA 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 241 prescription claims written by this provider, covering 107 Medicare beneficiaries and totaling roughly $509K in drug spend, split 22% brand-name and 78% generic by claim count, with an opioid prescribing rate of 14.9%. 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 90.7483/100 for the 2023 performance year (Quality 82.2742, Cost 58.9275), compared with the national average of 83.1.
Colon & Rectal Surgery Physician is a narrow specialty nationwide, with 1,608 enrolled providers across 50 states and an average of 196 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 | 1588830699 |
|---|---|
| Specialty | Colon & Rectal Surgery Physician |
| Credentials | D.O |
| Gender | Male |
| NPI Issued | 05/08/2008 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
90.7483
Final Score
Avg: 83.1
82.2742
Quality
58.9275
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where JOHN AVERSA, D.O 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.
HHC PHYSICIAN SERVICES PLLC
HAMDEN, 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 JOHN AVERSA, D.O. Source: openpaymentsdata.cms.gov.
Total received
$1.8K
Largest payer
Medtronic, 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
JOHN AVERSA, D.O — brand share 22.0%
Specialty average (est.)
22% brand-name claims vs 78% generic, on 241 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.
241
Total Claims
$509K
Total Drug Cost
107
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 243
- Total Day Supply
- 3,111
- Brand vs Generic
- 22% brand / 78% generic
- Brand Drug Cost
- $497K
- Generic Drug Cost
- $11K
- Opioid Claims
- 36 (14.9% rate)
- Antibiotic Claims
- 75
Patient Demographics
- Average Patient Age
- 71.9 years
- Avg HCC Risk Score
- 1.15
- Gender Split
- 63% female / 37% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What JOHN AVERSA, D.O prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metronidazole
Metronidazole
34 claims
- Oxycodone Hcl
Oxycodone Hcl
30 claims
- Neomycin Sulfate
Neomycin Sulfate
29 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
24 claims
- Linzess
Linzess
23 claims
- Sutab
Sutab
16 claims
- Cyclobenzaprine Hcl
Cyclobenzaprine Hcl
14 claims
- Mesalamine 13
Mesalamine
13 claims
| Drug | Claims |
|---|---|
| Metronidazole | 34 |
| Oxycodone Hcl | 30 |
| Neomycin Sulfate | 29 |
| Triamcinolone Acetonide | 24 |
| Linzess Linaclotide | 23 |
| Sutab Sod Sulf/Pot Chloride/Mag Sulf | 16 |
| Cyclobenzaprine Hcl | 14 |
| Mesalamine | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Colon & Rectal Surgery Physician Overview
How JOHN AVERSA, D.O fits within the Colon & Rectal Surgery Physician landscape nationally.
1,608
Colon & Rectal Surgery Physician Providers in US
50
States with Colon & Rectal Surgery Physician
196
Avg Claims per Provider
JOHN AVERSA, D.O's 241 claims are above the specialty average of 196.
Nearby Colon & Rectal Surgery Physician Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as AVERSA.
Dr. AMANDA AYERS
M.D.
BLOOMFIELD, CT
Dr. SAUMITRA BANERJEE
M.D.
BLOOMFIELD, CT
Dr. VANESSA BARATTA
M.D.
BLOOMFIELD, CT
Dr. RAFAL BARCZAK
MD
MERIDEN, CT
Dr. KAYLA BASSETT
MD
HARTFORD, CT
Compare Colon & Rectal Surgery Physician nationally: see state-by-state distribution →
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Frequently Asked Questions
What is JOHN AVERSA, D.O's specialty? ▼
JOHN AVERSA, D.O specializes in Colon & Rectal Surgery Physician and practices in HAMDEN, Connecticut. Credentials: D.O.
How much does JOHN AVERSA, D.O prescribe under Medicare Part D? ▼
In 2023, JOHN AVERSA, D.O wrote 241 Medicare Part D claims totaling $509K in drug costs for 107 beneficiaries.
What is JOHN AVERSA, D.O's Medicare quality score? ▼
JOHN AVERSA, D.O has a CMS MIPS Final Score of 90.7483/100 (Quality: 82.2742, Cost: 58.9275). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JOHN AVERSA, D.O located? ▼
JOHN AVERSA, D.O is located at 2200 WHITNEY AVE STE 170, HAMDEN, CT, 06518. Phone: (203) 281-7000.
What is JOHN AVERSA, D.O's NPI number? ▼
JOHN AVERSA, D.O's National Provider Identifier (NPI) is 1588830699, issued on 05/08/2008.
Does JOHN AVERSA, D.O prescribe more brand-name or generic drugs? ▼
JOHN AVERSA, D.O's prescribing is 22% brand-name and 78% generic drugs by claim count, with $497K in brand drug costs.
Does JOHN AVERSA, D.O prescribe opioids? ▼
Yes, JOHN AVERSA, D.O had 36 opioid claims in 2023 with an opioid prescribing rate of 14.9%.
How many Colon & Rectal Surgery Physician providers are there in the US? ▼
There are 1,608 Colon & Rectal Surgery Physician providers across 50 states in the US. The average Colon & Rectal Surgery Physician provider writes 196 Medicare Part D claims per year.
What drugs does JOHN AVERSA, D.O prescribe most often? ▼
Based on 2023 Medicare Part D data, JOHN AVERSA, D.O's most frequently prescribed drugs include Metronidazole, Oxycodone Hcl, Neomycin Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN AVERSA, D.O accept Medicare? ▼
JOHN AVERSA, D.O appears in CMS Medicare data with 241 Part D claims and 107 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN AVERSA, D.O's credentials? ▼
JOHN AVERSA, D.O's NPI is 1588830699 with credentials D.O. 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