Dr. Andrew J. Duffy, MD
- Medicare services, 2024
- 94
- Medicare patients, 2024
- 103
- Part D claims, 2019
- 15
- Publications
- 1
- MIPS score, 2024
- 87
- Practice address
- 50 Division St, New Haven, CT 06511
- Practice phone
- Call (203) 785-2140
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Yale Medicine
New Haven, Connecticut
Find Dr. Duffy's 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. Andrew J. Duffy is a general surgeon in New Haven, Connecticut
Dr. Duffy practices at Yale Medicine in New Haven, Connecticut.
Dr. Duffy's NPI, 1386686152, was assigned on June 13, 2006. Dr. Duffy graduated from University of Massachusetts Medical School in 1996. Dr. Duffy holds Connecticut license 042461.
- NPI
- 1386686152NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527031236
- NPI enumeration date
- June 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (203) 785-2140
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Andrew J. Duffy practices at Yale Medicine in New Haven, Connecticut
Dr. Duffy's primary practice is Yale Medicine, at 50 Division St, New Haven, CT 06511 in South Central Ct County. The practice phone is (203) 785-2140.
- Yale Medicine50 Division St, New Haven, CT 06511 · South Central Ct CountyPhone(203) 785-2140
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Andrew J. Duffy is affiliated with 3 sites of care and 1 medical group
Dr. Duffy's primary practice is Yale Medicine in New Haven, Connecticut. Dr. Duffy is also affiliated with Yale New Haven Hospital. The medical group on file is Yale Health. Dmand AI also links Dr. Duffy to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Andrew J. Duffy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Duffy practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Yale Medicine | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Andrew J. Duffy is one of 303 general surgeons in Connecticut
Surgery is Dr. Duffy's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Duffy is licensed in Connecticut.
Specialties and state licenses
- Surgery, ConnecticutPrimary
General surgeons near Dr. Duffy
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Andrew J. Duffy billed Medicare for 94 services in 2024
CMS data shows 94 Medicare services from Dr. Duffy across 3 procedure codes in 2024, for 103 Medicare patients. Medicare paid $37,545 for them.
Dr. Duffy's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1222024: 7340%
- Surgery
- 2023: 402024: 2148%
Where Dr. Duffy's Medicare services took place, 2024
- In an office7378%
- In a facility2122%
Dr. Duffy compared with the Connecticut median for general surgeons, 2024
- Dr. Duffy
- Connecticut median
- Medicare services
- 94vs 10914% below
- Medicare patients
- 103vs 958% above
- Part D claims
- 15vs 2540% below
Medians across 295 general surgeons in Connecticut with Dmand AI profiles that report each measure.
Dr. Duffy's 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. Duffy and other general surgeons in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Andrew J. Duffy treated 103 Medicare patients in 2024, average age 72
CMS counts 103 Medicare patients who saw Dr. Duffy in 2024. The largest group is 65 to 74, with 57 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.53, 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. Duffy's median patient age at 69, with 50% women.
Dr. Duffy's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Duffy's Medicare patients by sex, 2024
- Women4645%
- Men5755%
Chronic conditions among Dr. Duffy's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Ischemic heart disease35%
- Anxiety32%
- Diabetes30%
- Mood disorders25%
- Depression21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Duffy's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Andrew J. Duffy wrote 15 Medicare Part D claims in 2019
In 2019, Dr. Duffy wrote 15 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $166 in total drug cost.
Dr. Duffy's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Andrew J. Duffy scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Duffy for performance year 2024, reported as part of a group. Dr. Duffy accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Duffy as offering telehealth. CMS counts 25 procedures of hernia repair (minimally invasive) by Dr. Duffy, more than 92% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Duffy's MIPS scores, performance year 2024
- 87of 100Final score
- 77.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Duffy ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 92nd percentile25 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 53rd percentile25 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair - groin (open): 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), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Andrew J. Duffy has 1 publication on record
Dmand AI links 1 paper to Dr. Duffy in 2014.
Recent publications by Dr. Duffy
See who Dr. Duffy researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Duffy 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. Andrew J. Duffy received $267,878 in industry payments from 2016 to 2025
CMS Open Payments shows 522 general payments to Dr. Duffy from 15 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 33% of the total. Intuitive Surgical, Inc. paid the most, $198,320. It also lists 4 research payments totaling $10,685 from 2019 to 2022.
General payments to Dr. Duffy by program year, 2016 to 2025
General payments to Dr. Duffy by kind, 2016 to 2025
- Speaker and faculty fees$87,79433%
- Education$79,45330%
- Consulting fees$41,90516%
- Travel and lodging$34,27213%
- Other$22,4558%
Companies that paid Dr. Duffy 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. Andrew J. Duffy graduated from University of Massachusetts Medical School
Dr. Duffy graduated from University of Massachusetts Medical School in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Andrew J. Duffy'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| 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. Andrew J. Duffy
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. Andrew J. Duffy's NPI number?
Dr. Andrew J. Duffy's NPI number is 1386686152. It was assigned on June 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Andrew J. Duffy?
Dr. Andrew J. Duffy is a general surgeon in New Haven, Connecticut. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Andrew J. Duffy practice?
Dr. Duffy practices at 50 Division St, New Haven, CT 06511. Dr. Duffy's primary practice is Yale Medicine in New Haven, Connecticut. Dmand AI also links Dr. Duffy to 1 group practice or clinic.
What is Dr. Andrew J. Duffy's office phone number?
The practice phone on file for Dr. Duffy is (203) 785-2140.
What is Dr. Andrew J. Duffy's medical license number?
Dr. Duffy holds Connecticut license 042461.
Which hospitals is Dr. Andrew J. Duffy affiliated with?
Dr. Duffy is affiliated with Yale New Haven Hospital.
What medical group is Dr. Andrew J. Duffy part of?
Dr. Duffy is linked to Yale Health.
Does Dr. Andrew J. Duffy accept Medicare?
Yes. CMS data shows Dr. Duffy billed Medicare for 94 services in 2024, and Dr. Duffy accepts Medicare assignment.
Does Dr. Andrew J. Duffy offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Duffy as offering telehealth services.
What is Dr. Andrew J. Duffy's MIPS score?
Dr. Duffy's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Andrew J. Duffy see?
CMS counts 103 Medicare patients who saw Dr. Duffy in 2024, with an average age of 72.
What services does Dr. Andrew J. Duffy bill to Medicare?
In 2024, Dr. Duffy's most billed Medicare services were office visit, new patient (99205), office visit, established patient (99215) and surgery: digestive system (43281).
Where did Dr. Andrew J. Duffy go to medical school?
Dr. Duffy graduated from University of Massachusetts Medical School in 1996.
What drugs does Dr. Andrew J. Duffy prescribe most?
In 2019 Medicare Part D data, Dr. Duffy's most prescribed drugs by claims were Omeprazole.
Has Dr. Andrew J. Duffy received payments from drug or device companies?
CMS Open Payments shows $267,878 in general payments to Dr. Duffy from 15 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Andrew J. Duffy been practicing?
Dr. Duffy graduated from medical school in 1996, 30 years ago.
Does Dr. Andrew J. Duffy do research?
Dmand AI links 1 publication to Dr. Duffy.
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