Conn Med
Bile DuctsCholangiopancreatography, Endoscopic RetrogradeCholecystectomy
Dr. John Anthony Bonadies, MD
NPI1366471849PAC ID6305847641
- Medicare services, 2024
- 166
- Medicare patients, 2026
- 102
- Part D claims, 2026
- 29
- Publications
- 1
- MIPS score, 2026
- 95
- Practice address
- 2200 Whitney Avenue, Suite 380, Hamden, CT 06518
- Practice phone
- Call (203) 281-3636
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Endoscopy Center of Connecticut
Surgery Center - Medicare-Certified · Hamden, Connecticut
Find Dr. Bonadies' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John Anthony Bonadies is a general surgeon in Hamden, Connecticut
Dr. Bonadies practices at Endoscopy Center of Connecticut in Hamden, Connecticut.
Dr. Bonadies' NPI, 1366471849, was assigned on June 30, 2006. Dr. Bonadies graduated from University of Vermont College of Medicine in 1988. Dr. Bonadies holds Connecticut license 032008.
NPI and contact details
- NPI
- 1366471849NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305847641
- NPI enumeration date
- June 30, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 281-3636
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Anthony Bonadies practices at Endoscopy Center of Connecticut in Hamden, Connecticut
Dr. Bonadies' primary practice is Endoscopy Center of Connecticut, at 2200 Whitney Avenue, Suite 380, Hamden, CT 06518. The practice phone is (203) 281-3636.
- Endoscopy Center of Connecticut2200 Whitney Avenue, Suite 380, Hamden, CT 06518Phone(203) 281-3636
Source: Dmand AI Affiliation Data
Dr. John Anthony Bonadies is affiliated with 6 sites of care and 2 medical groups
Dr. Bonadies' primary practice is Endoscopy Center of Connecticut in Hamden, Connecticut. Dr. Bonadies is also affiliated with Griffin Hospital. The medical group on file is Physicians Alliance of Connecticut (PACT). Dmand AI also links Dr. Bonadies to 1 more hospital, 2 group practices and clinics, 1 home health agency and 1 medical group, each named with a free account.
Endoscopy Center of ConnecticutPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Anthony Bonadies' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bonadies practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Endoscopy Center of Connecticut | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. John Anthony Bonadies is one of 303 general surgeons in Connecticut
Surgery is Dr. Bonadies' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Bonadies is licensed in Connecticut.
Specialties and state licenses
- Surgery, ConnecticutPrimary
General surgeons near Dr. Bonadies
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
303general surgeons in Connecticut
2general surgeons in Hamden
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Anthony Bonadies billed Medicare for 166 services in 2024
CMS data shows 166 Medicare services from Dr. Bonadies across 5 procedure codes in 2024, for 102 Medicare patients. Medicare paid $25,003 for them.
Medicare services, 2024166
Medicare patients102
Paid by Medicare$25,003
Procedure codes5
Dr. Bonadies' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1112024: 14127%
- Surgery
- 2023: 132024: 2592%
Where Dr. Bonadies' Medicare services took place, 2024
- In an office14185%
- In a facility2515%
Dr. Bonadies compared with the Connecticut median for general surgeons, 2024
- Dr. Bonadies
- Connecticut median
- Medicare services
- 166vs 10952% above
- Medicare patients
- 102vs 957% above
- Part D claims
- 17vs 2532% below
Medians across 295 general surgeons in Connecticut with Dmand AI profiles that report each measure.
Dr. Bonadies' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bonadies and other general surgeons in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Anthony Bonadies treated 102 Medicare patients in 2026, average age 73
CMS counts 102 Medicare patients who saw Dr. Bonadies in 2026. The largest group is 65 to 74, with 58 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.80, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Bonadies' median patient age at 63, with 32% women.
Medicare patients, 2026102
Average age73
Average risk score1.80
Also on Medicaid18%
Dr. Bonadies' Medicare patients by age, 2026
CMS leaves out age groups with fewer than 11 patients.
Dr. Bonadies' Medicare patients by sex, 2026
- Women3332%
- Men6968%
Chronic conditions among Dr. Bonadies' Medicare patients, 2026
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Ischemic heart disease37%
- Diabetes27%
- Chronic kidney disease26%
- Anxiety25%
- Atrial fibrillation25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bonadies' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women32%
- Men67%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. John Anthony Bonadies wrote 29 Medicare Part D claims in 2026
In 2026, Dr. Bonadies wrote 29 Medicare Part D claims for 17 patients. 93% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $96 in total drug cost. In 2021, CMS named 30 claims across 1 drug.
Part D claims, 202629
Drugs named by CMS1
Total drug cost$96
Part D patients17
Dr. Bonadies' Part D claims by kind of drug, 2026
- Generic27 claims93%
- Brand-name and other2 claims7%
Dr. Bonadies' most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 302022: 1743%
Drugs named by CMS: 1 in 2022, 1 in 2021.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2026 data
Dr. John Anthony Bonadies scored 95 out of 100 in Medicare's MIPS program for 2026
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Bonadies for performance year 2026, reported as part of a group. Dr. Bonadies accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 12 procedures of hernia repair - groin (open) by Dr. Bonadies, more than 91% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Bonadies' MIPS scores, performance year 2026
- 95of 100Final score
- 83.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Bonadies ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 80th percentile14 procedures
- Hernia repair - groin (open)
- 91st percentile12 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2026 data; and Doctors and Clinicians Utilization Data (CMS)
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Dr. John Anthony Bonadies has 1 publication on record
Dmand AI links 1 paper to Dr. Bonadies.
Papers1
Recent publications by Dr. Bonadies
See who Dr. Bonadies researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Bonadies works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Anthony Bonadies received $2,272 in industry payments from 2016 to 2025
CMS Open Payments shows 25 general payments to Dr. Bonadies from 5 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 79% of the total. Intuitive Surgical, Inc. paid the most, $2,115.
General payments to Dr. Bonadies by program year, 2016 to 2025
General payments to Dr. Bonadies by kind, 2016 to 2025
$2.3Kin total
- Travel and lodging$1,80079%
- Food and beverage$47221%
Companies that paid Dr. Bonadies the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Anthony Bonadies graduated from University of Vermont College of Medicine
Dr. Bonadies graduated from University of Vermont College of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Anthony Bonadies's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Anthony Bonadies
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John Anthony Bonadies' NPI number?
Dr. John Anthony Bonadies' NPI number is 1366471849. It was assigned on June 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Anthony Bonadies?
Dr. John Anthony Bonadies is a general surgeon in Hamden, Connecticut. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. John Anthony Bonadies practice?
Dr. Bonadies practices at 2200 Whitney Avenue, Suite 380, Hamden, CT 06518. Dr. Bonadies' primary practice is Endoscopy Center of Connecticut in Hamden, Connecticut. Dmand AI also links Dr. Bonadies to 1 hospital, 2 group practices and clinics, 1 home health agency and 1 medical group, and a free account names each one.
What is Dr. John Anthony Bonadies' office phone number?
The practice phone on file for Dr. Bonadies is (203) 281-3636. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. John Anthony Bonadies' email address?
Dmand AI checks professional and personal email addresses for Dr. Bonadies through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. John Anthony Bonadies' medical license number?
Dr. Bonadies holds Connecticut license 032008.
Which hospitals is Dr. John Anthony Bonadies affiliated with?
Dr. Bonadies is affiliated with Griffin Hospital. Dmand AI links Dr. Bonadies to 1 more hospital, named with a free account.
What medical group is Dr. John Anthony Bonadies part of?
Dr. Bonadies is linked to Physicians Alliance of Connecticut (PACT). Dmand AI links Dr. Bonadies to 1 more medical group, named with a free account.
Who does Dr. John Anthony Bonadies practice with?
Dmand AI links 125 HCPs to Dr. Bonadies' primary medical group, 2 of them general surgeons. A free account lists them, with verified contacts.
Does Dr. John Anthony Bonadies accept Medicare?
Yes. CMS data shows Dr. Bonadies billed Medicare for 166 services in 2024, and Dr. Bonadies accepts Medicare assignment.
Show 9 more questionsShow fewer questions
What is Dr. John Anthony Bonadies' MIPS score?
Dr. Bonadies' MIPS final score for performance year 2026 is 95 out of 100, reported as part of a group.
How many Medicare patients does Dr. John Anthony Bonadies see?
CMS counts 102 Medicare patients who saw Dr. Bonadies in 2026, with an average age of 73.
What services does Dr. John Anthony Bonadies bill to Medicare?
In 2024, Dr. Bonadies' most billed Medicare services were office visit, new patient (99204), office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. John Anthony Bonadies go to medical school?
Dr. Bonadies graduated from University of Vermont College of Medicine in 1988.
What drugs does Dr. John Anthony Bonadies prescribe most?
In 2022 Medicare Part D data, Dr. Bonadies' most prescribed drugs by claims were Oxycodone HCl.
Has Dr. John Anthony Bonadies received payments from drug or device companies?
CMS Open Payments shows $2,272 in general payments to Dr. Bonadies from 5 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. John Anthony Bonadies been practicing?
Dr. Bonadies graduated from medical school in 1988, 38 years ago.
Does Dr. John Anthony Bonadies do research?
Dmand AI links 1 publication to Dr. Bonadies.
What EHR does Dr. John Anthony Bonadies' practice use?
Dmand AI tracks the EHR system at Endoscopy Center of Connecticut and at 5 more sites and 1 medical group. The vendor and product are available with a free Dmand AI account.
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