J Appl Physiol (1985)
Death, SuddenElectroencephalographyPotassium Channels, Inwardly Rectifying
Dr. Erin I. Duffy, MD
NPI1497215669PAC ID4082010020
- Medicare services, 2024
- 982
- Medicare patients, 2024
- 846
- Part D claims, 2024
- 95
- Publications
- 3
- Hospital affiliations
- 2
- Practice address
- Health Sciences Center Suny, Stony Brook, NY 11794
- Practice phone
- Call (631) 444-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Erin I. Duffy is an emergency medicine physician in Stony Brook, New York
Dr. Duffy practices at Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University.
Dr. Duffy's NPI, 1497215669, was assigned on March 22, 2019. Dr. Duffy graduated from Stony Brook University Health Sciences Center School of Medicine in 2019. Dr. Duffy holds New York license 314438-01.
NPI and contact details
- NPI
- 1497215669NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4082010020
- NPI enumeration date
- March 22, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 444-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Erin I. Duffy practices at 2 locations in Stony Brook, New York
Dr. Duffy's primary practice is Stony Brook University Hospital, at Health Sciences Center Suny, Stony Brook, NY 11794 in Suffolk County. The practice phone is (631) 444-4000. Dr. Duffy also practices at Stony Brook University Hospital, 101 Nicolls Rd, Stony Brook, NY 11794.
- Stony Brook University HospitalPrimaryHealth Sciences Center Suny, Stony Brook, NY 11794 · Suffolk CountyPhone(631) 444-4000
- Stony Brook University Hospital101 Nicolls Rd, Stony Brook, NY 11794 · Suffolk CountyPhone(631) 444-4100
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Erin I. Duffy is affiliated with 5 sites of care and 4 medical groups
Dr. Duffy's primary practice is Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University. Dr. Duffy is also affiliated with Mather Hospital. The medical group on file is Stony Brook Emergency Physicians. Dmand AI also links Dr. Duffy to 3 more medical groups, 2 group practices and clinics and 1 clinical lab, each named with a free account.
Mather HospitalStony Brook Emergency Physicians3 medical groupsNames with a free account2 group practices and clinicsNames with a free account1 clinical labName with a free account
See all 9 affiliations for Dr. DuffySources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Erin I. Duffy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Duffy practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Stony Brook University Hospital | Available with a free account |
| +4 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Duffy practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across Stony Brook University and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Erin I. Duffy is one of 3,709 emergency medicine physicians in New York
Emergency medicine is Dr. Duffy's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Duffy is licensed in New York.
Specialties and state licenses
- Emergency medicine, New YorkPrimary
Emergency medicine physicians near Dr. Duffy
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
3,709emergency medicine physicians in New York57emergency medicine physicians in Stony Brook46emergency medicine physicians at Stony Brook University Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Erin I. Duffy billed Medicare for 982 services in 2024
CMS data shows 982 Medicare services from Dr. Duffy across 11 procedure codes in 2024, for 846 Medicare patients. Medicare paid $128,601 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024982
Medicare patients846
Paid by Medicare$128,601
Procedure codes11
Dr. Duffy's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9332024: 8499%
- Tests and treatments
- 2023: 392024: 105169%
- Imaging
- 2023: 02024: 15
- Surgery
- 2023: 02024: 13
Dr. Duffy compared with the New York median for emergency medicine physicians, 2024
- Dr. Duffy
- New York median
- Medicare services
- 982vs 2194.5 times
- Medicare patients
- 846vs 2163.9 times
- Part D claims
- 23vs 2921% below
Medians across 3,510 emergency medicine physicians in New York 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.
Need commercial claims for Dr. Duffy?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Duffy and other emergency medicine physicians in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Erin I. Duffy treated 846 Medicare patients in 2024, average age 77
CMS counts 846 Medicare patients who saw Dr. Duffy in 2024. The largest group is 75 to 84, with 331 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 2.32, 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 53, with 55% women.
Medicare patients, 2024846
Average age77
Average risk score2.32
Also on Medicaid25%
Dr. Duffy's Medicare patients by age, 2024
Dr. Duffy's Medicare patients by sex, 2024
- Women46655%
- Men38045%
Chronic conditions among Dr. Duffy's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Ischemic heart disease59%
- Diabetes46%
- Anxiety45%
- Mood disorders45%
- Chronic kidney disease41%
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 53
Patient panel by sex, all payers
- Women55%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Erin I. Duffy wrote 95 Medicare Part D claims in 2024
In 2024, Dr. Duffy wrote 95 Medicare Part D claims for 70 patients. 94% of them were for generic drugs. CMS names the drug for 23 of them, across 2 drugs with 11 or more claims each, at $85 in total drug cost. In 2023, CMS named 12 claims across 1 drug.
Part D claims, 202495
Drugs named by CMS2
Total drug cost$85
Part D patients70
Dr. Duffy's Part D claims by kind of drug, 2024
- Generic89 claims94%
- Brand-name and other6 claims6%
Dr. Duffy's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Duffy's Part D claims, 2024
- Opioids13%12 of 95 claims
- Antibiotics36%34 of 95 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 122024: 2392%
Drugs named by CMS: 2 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Erin I. Duffy takes part in Medicare
Dr. Duffy accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Find emergency medicine physicians like Dr. Duffy by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Erin I. Duffy has 3 publications on record
Dmand AI links 3 papers to Dr. Duffy, published from 2018 to 2023. Dr. Duffy's most frequent co-author is James A. Vosswinkel, MD.
Papers3
Years published2018 to 2023
Dr. Duffy's papers by year, 2018 to 2023
Dr. Duffy's most frequent co-authors
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 emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Erin I. Duffy graduated from Stony Brook University Health Sciences Center School of Medicine
Dr. Duffy graduated from Stony Brook University Health Sciences Center School of Medicine in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Erin I. 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 Affiliation DataDmand AI Practice 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Erin I. 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. Erin I. Duffy's NPI number?
Dr. Erin I. Duffy's NPI number is 1497215669. It was assigned on March 22, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Erin I. Duffy?
Dr. Erin I. Duffy is an emergency medicine physician in Stony Brook, New York. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Erin I. Duffy practice?
Dr. Duffy practices at Health Sciences Center Suny, Stony Brook, NY 11794. Dr. Duffy also practices at 101 Nicolls Rd, Stony Brook, NY 11794. Dr. Duffy's primary practice is Stony Brook University Hospital in Stony Brook, New York, part of Stony Brook University. Dmand AI also links Dr. Duffy to 3 medical groups, 2 group practices and clinics and 1 clinical lab.
What is Dr. Erin I. Duffy's office phone number?
The practice phone on file for Dr. Duffy is (631) 444-4000.
What is Dr. Erin I. Duffy's medical license number?
Dr. Duffy holds New York license 314438-01.
Which hospitals is Dr. Erin I. Duffy affiliated with?
Dr. Duffy practices at Stony Brook University Hospital in Stony Brook, New York. Dr. Duffy is also affiliated with Mather Hospital.
What medical group is Dr. Erin I. Duffy part of?
Dr. Duffy is linked to Stony Brook Emergency Physicians. Dmand AI links Dr. Duffy to 3 more medical groups.
Does Dr. Erin I. Duffy accept Medicare?
Yes. CMS data shows Dr. Duffy billed Medicare for 982 services in 2024, and Dr. Duffy accepts Medicare assignment.
How many Medicare patients does Dr. Erin I. Duffy see?
CMS counts 846 Medicare patients who saw Dr. Duffy in 2024, with an average age of 77.
What services does Dr. Erin I. Duffy bill to Medicare?
In 2024, Dr. Duffy's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and heart test or procedure (93042).
Show 5 more questionsShow fewer questions
Where did Dr. Erin I. Duffy go to medical school?
Dr. Duffy graduated from Stony Brook University Health Sciences Center School of Medicine in 2019.
What drugs does Dr. Erin I. Duffy prescribe most?
In 2024 Medicare Part D data, Dr. Duffy's most prescribed drugs by claims were Cephalexin and Oxycodone HCl.
How long has Dr. Erin I. Duffy been practicing?
Dr. Duffy graduated from medical school in 2019, 7 years ago.
Does Dr. Erin I. Duffy do research?
Dmand AI links 3 publications to Dr. Duffy, published from 2018 to 2023.
Who does Dr. Erin I. Duffy publish with?
Dr. Duffy's most frequent co-authors are James A. Vosswinkel, MD (1 shared paper).
Selling to emergency medicine practices?
See emergency medicine physicians in New York by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card