Acad Psychiatry
Career ChoiceCurriculumEducation, Medical, Graduate
Dr. Susan M. Duffy, MD
NPI1851509749PAC ID6507904927
- Medicare services, 2024
- 191
- Medicare patients, 2024
- 159
- Part D claims, 2024
- 205
- Publications
- 1
- MIPS score, 2024
- 80
- Practice address
- 200 Hawkins Drive, Iowa City, IA 52242
- Practice phone
- Call (319) 356-1616
- 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
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Dr. Susan M. Duffy is a neurologist in Iowa City, Iowa
Dr. Duffy practices at University of Iowa Health Care Medical Center in Iowa City, Iowa, part of The University of Iowa.
Dr. Duffy's NPI, 1851509749, was assigned on May 21, 2007. Dr. Duffy graduated from University of Iowa, RJ & L Carver College of Medicine in 2004. Dr. Duffy holds Iowa license MD-37729.
NPI and contact details
- NPI
- 1851509749NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507904927
- NPI enumeration date
- May 21, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (319) 356-1616
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Susan M. Duffy practices at University of Iowa Health Care Medical Center in Iowa City, Iowa
Dr. Duffy's primary practice is University of Iowa Health Care Medical Center, at 200 Hawkins Drive, Iowa City, IA 52242 in Johnson County. The practice phone is (319) 356-1616.
- University of Iowa Health Care Medical Center200 Hawkins Drive, Iowa City, IA 52242 · Johnson CountyPhone(319) 356-1616
Source: Dmand AI Affiliation Data
Dr. Susan M. Duffy is affiliated with 2 sites of care and 1 medical group
Dr. Duffy's primary practice is University of Iowa Health Care Medical Center in Iowa City, Iowa, part of The University of Iowa. Dr. Duffy is also affiliated with Van Buren County Hospital. The medical group on file is Scanlan Center for School Mental Health Clinic.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Susan M. 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 |
|---|---|
| University of Iowa Health Care Medical Center | Available with a free account |
| +1 more affiliated site | 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 The University of Iowa and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Susan M. Duffy is one of 136 neurologists in Iowa
Neurology is Dr. Duffy's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dmand AI has Dr. Duffy's licenses on file in 2 states: Iowa and Michigan.
Specialties and state licenses
- Neurology, IowaPrimary
- Psychiatry, Michigan
Neurologists near Dr. Duffy
Counts of neurologists with a Dmand AI profile, by place and practice. Each opens the list.
136neurologists in Iowa38neurologists in Iowa City26neurologists at University of Iowa Health Care Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Susan M. Duffy billed Medicare for 191 services in 2024
CMS data shows 191 Medicare services from Dr. Duffy across 3 procedure codes in 2024, for 159 Medicare patients. Medicare paid $12,951 for them.
Medicare services, 2024191
Medicare patients159
Paid by Medicare$12,951
Procedure codes3
Dr. Duffy's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1462024: 17923%
- Tests and treatments
- 2023: 122024: 12No change
Where Dr. Duffy's Medicare services took place, 2024
- In an office189%
- In a facility17391%
Dr. Duffy compared with the Iowa median for neurologists, 2024
- Dr. Duffy
- Iowa median
- Medicare services
- 191vs 29836% below
- Medicare patients
- 159vs 19820% below
- Part D claims
- 110vs 24154% below
Medians across 133 neurologists in Iowa 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Susan M. Duffy treated 159 Medicare patients in 2024, average age 65
CMS counts 159 Medicare patients who saw Dr. Duffy in 2024. The largest group is 65 to 74, with 57 patients. 75% of them have anxiety, and 75% have mood disorders. 35% are also on Medicaid. Their average risk score is 1.31, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Duffy's median patient age at 59, with 55% women.
Medicare patients, 2024159
Average age65
Average risk score1.31
Also on Medicaid35%
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
- Women8252%
- Men7748%
Chronic conditions among Dr. Duffy's Medicare patients, 2024
- Anxiety75%
- Mood disorders75%
- Depression69%
- High blood pressure60%
- High cholesterol59%
- Arthritis31%
- Schizophrenia and other psychoses31%
- Diabetes27%
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 59
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Susan M. Duffy wrote 205 Medicare Part D claims in 2024
In 2024, Dr. Duffy wrote 205 Medicare Part D claims for 42 patients. 91% of them were for generic drugs. CMS names the drug for 110 of them, across 7 drugs with 11 or more claims each, at $14,795 in total drug cost. In 2023, CMS named 69 claims across 4 drugs.
Part D claims, 2024205
Drugs named by CMS7
Total drug cost$14,795
Part D patients42
Dr. Duffy's Part D claims by kind of drug, 2024
- Generic187 claims91%
- Brand-name18 claims9%
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
- Antipsychotics, patients 65 and over7%15 of 205 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: 692024: 11059%
Drugs named by CMS: 7 in 2024, 4 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
Dr. Susan M. Duffy scored 80 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 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.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Duffy's MIPS scores, performance year 2024
- 80of 100Final score
- 75.7of 100Quality
- 78of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Susan M. Duffy has 1 publication on record
Dmand AI links 1 paper to Dr. Duffy in 2018. Dr. Duffy's most frequent co-authors are Kristina Chechotka, MD, Heba Taha Mohammed Gad, MD and Susan M. Maixner, MD.
Papers1
Dr. Duffy's most frequent co-authors
- Kristina Chechotka, MD1 shared paper
- Heba Taha Mohammed Gad, MD1 shared paper
- Susan M. Maixner, MD1 shared paper
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 neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Susan M. Duffy received $44 in industry payments in 2025
CMS Open Payments shows 2 general payments to Dr. Duffy from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $44.
Companies that paid Dr. Duffy the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Susan M. Duffy graduated from University of Iowa, RJ & L Carver College of Medicine
Dr. Duffy graduated from University of Iowa, RJ & L Carver College of Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Susan M. 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 | 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) |
| 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. Susan M. 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. Susan M. Duffy's NPI number?
Dr. Susan M. Duffy's NPI number is 1851509749. It was assigned on May 21, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Susan M. Duffy?
Dr. Susan M. Duffy is a neurologist in Iowa City, Iowa. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Susan M. Duffy practice?
Dr. Duffy practices at 200 Hawkins Drive, Iowa City, IA 52242. Dr. Duffy's primary practice is University of Iowa Health Care Medical Center in Iowa City, Iowa, part of The University of Iowa.
What is Dr. Susan M. Duffy's office phone number?
The practice phone on file for Dr. Duffy is (319) 356-1616.
What is Dr. Susan M. Duffy's medical license number?
Dr. Duffy holds Iowa license MD-37729, one of the licenses on file in 2 states.
Which states has Dr. Susan M. Duffy been licensed in?
Dmand AI has state licenses on file for Dr. Duffy in Iowa and Michigan.
Which hospitals is Dr. Susan M. Duffy affiliated with?
Dr. Duffy practices at University of Iowa Health Care Medical Center in Iowa City, Iowa. Dr. Duffy is also affiliated with Van Buren County Hospital.
What medical group is Dr. Susan M. Duffy part of?
Dr. Duffy is linked to Scanlan Center for School Mental Health Clinic.
Does Dr. Susan M. Duffy accept Medicare?
Yes. CMS data shows Dr. Duffy billed Medicare for 191 services in 2024, and Dr. Duffy accepts Medicare assignment.
Does Dr. Susan M. Duffy offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Duffy as offering telehealth services.
Show 9 more questionsShow fewer questions
What is Dr. Susan M. Duffy's MIPS score?
Dr. Duffy's MIPS final score for performance year 2024 is 80 out of 100, reported as part of a group.
How many Medicare patients does Dr. Susan M. Duffy see?
CMS counts 159 Medicare patients who saw Dr. Duffy in 2024, with an average age of 65.
What services does Dr. Susan M. Duffy bill to Medicare?
In 2024, Dr. Duffy's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and psychiatric service (90792).
Where did Dr. Susan M. Duffy go to medical school?
Dr. Duffy graduated from University of Iowa, RJ & L Carver College of Medicine in 2004.
What drugs does Dr. Susan M. Duffy prescribe most?
In 2024 Medicare Part D data, Dr. Duffy's most prescribed drugs by claims were Trazodone HCl, Sertraline HCl and Lamotrigine.
Has Dr. Susan M. Duffy received payments from drug or device companies?
CMS Open Payments shows $44 in general payments to Dr. Duffy from 1 company from 2025 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Susan M. Duffy been practicing?
Dr. Duffy graduated from medical school in 2004, 22 years ago.
Does Dr. Susan M. Duffy do research?
Dmand AI links 1 publication to Dr. Duffy.
Who does Dr. Susan M. Duffy publish with?
Dr. Duffy's most frequent co-authors are Kristina Chechotka, MD (1 shared paper), Heba Taha Mohammed Gad, MD (1 shared paper) and Susan M. Maixner, MD (1 shared paper).
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