Dr. Douglas P. Duffy, MD
- Medicare services, 2023
- 29
- Part D claims, 2018
- 92
- Hospital affiliations
- 1
- Medical group
- 1
- State licenses
- 2
- Practice address
- 801 Broadway North, Fargo, ND 58122
- Practice phone
- Call (701) 234-2000
- 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. Douglas P. Duffy is a nephrologist in Fargo, North Dakota
Dr. Duffy practices at Sanford Broadway Medical Center in Fargo, North Dakota, part of Sanford Health.
Dr. Duffy's NPI, 1366542227, was assigned on September 22, 2006. Dr. Duffy graduated from Michigan State University College of Human Medicine in 1973. Dr. Duffy holds Wisconsin license 25241.
- NPI
- 1366542227NPI Registry (opens in a new tab)
- NPI enumeration date
- September 22, 2006
- NPI status
- Active
- Practice phone
- (701) 234-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 79
- Medical school graduation
- 1973
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Douglas P. Duffy practices at 2 locations in Fargo, North Dakota
Dr. Duffy's primary practice is Sanford Broadway Medical Center, at 801 Broadway North, Fargo, ND 58122 in Cass County. The practice phone is (701) 234-2000. The NPI Registry lists Dr. Duffy's practice address as 3000 32nd S Ave, Fargo, ND 58103.
- Sanford Broadway Medical CenterPrimary801 Broadway North, Fargo, ND 58122 · Cass CountyPhone(701) 234-2000
- NPI Registry address3000 32nd S Ave, Fargo, ND 58103 · Cass CountyPhone(715) 387-5345
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Douglas P. Duffy is affiliated with 1 site of care and 1 medical group
Dr. Duffy's primary practice is Sanford Broadway Medical Center in Fargo, North Dakota, part of Sanford Health. The medical group on file is Essentia Health-Fargo.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Douglas P. Duffy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Duffy practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sanford Broadway Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Douglas P. Duffy is one of 32 nephrologists in North Dakota
Nephrology is Dr. Duffy's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dmand AI has Dr. Duffy's licenses on file in 2 states: Wisconsin and North Dakota.
Specialties and state licenses
- Nephrology, WisconsinPrimary
- North Dakota license
Nephrologists near Dr. Duffy
Counts of nephrologists 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. Douglas P. Duffy billed Medicare for 29 services in 2023
CMS data shows 29 Medicare services from Dr. Duffy across 1 procedure code in 2023. Medicare paid $1,754 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Duffy's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1062023: 2973%
- Tests and treatments
- 2022: 552023: 0100%
Dr. Duffy compared with the North Dakota median for nephrologists, 2023
- Dr. Duffy
- North Dakota median
- Medicare services
- 29vs 85497% below
- Part D claims
- 92vs 57484% below
Medians across 33 nephrologists in North Dakota with Dmand AI profiles that report each measure.
Dr. Duffy's most billed Medicare procedure codes, 2023
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 nephrologists in North Dakota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Douglas P. Duffy's patients have a median age of 13
Across all payers, Dmand AI patient panel data puts Dr. Duffy's median patient age at 13, with 50% women.
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 13
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Douglas P. Duffy wrote 92 Medicare Part D claims in 2018
In 2018, Dr. Duffy wrote 92 Medicare Part D claims. Every claim was for a generic drug. They cover 3 drugs, with $1,270 in total drug cost. In 2017, CMS named 330 claims across 14 drugs.
Dr. Duffy's most prescribed drugs by claims, 2018
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, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 3302018: 9272%
Drugs named by CMS: 3 in 2018, 14 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Douglas P. Duffy graduated from Michigan State University College of Human Medicine
Dr. Duffy graduated from Michigan State University College of Human Medicine in 1973.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Douglas P. 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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Douglas P. 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. Douglas P. Duffy's NPI number?
Dr. Douglas P. Duffy's NPI number is 1366542227. It was assigned on September 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Douglas P. Duffy?
Dr. Douglas P. Duffy is a nephrologist in Fargo, North Dakota. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Douglas P. Duffy practice?
Dr. Duffy practices at 801 Broadway North, Fargo, ND 58122. Dr. Duffy also practices at 3000 32nd S Ave, Fargo, ND 58103. Dr. Duffy's primary practice is Sanford Broadway Medical Center in Fargo, North Dakota, part of Sanford Health.
What is Dr. Douglas P. Duffy's office phone number?
The practice phone on file for Dr. Duffy is (701) 234-2000.
What is Dr. Douglas P. Duffy's medical license number?
Dr. Duffy holds Wisconsin license 25241, one of the licenses on file in 2 states.
Which states has Dr. Douglas P. Duffy been licensed in?
Dmand AI has state licenses on file for Dr. Duffy in Wisconsin and North Dakota.
Which hospitals is Dr. Douglas P. Duffy affiliated with?
Dr. Duffy practices at Sanford Broadway Medical Center in Fargo, North Dakota.
What medical group is Dr. Douglas P. Duffy part of?
Dr. Duffy is linked to Essentia Health-Fargo.
Does Dr. Douglas P. Duffy accept Medicare?
Yes. CMS data shows Dr. Duffy billed Medicare for 29 services in 2023.
What services does Dr. Douglas P. Duffy bill to Medicare?
In 2023, Dr. Duffy's most billed Medicare services were hospital inpatient care (99232).
Show 3 more questionsShow fewer questions
Where did Dr. Douglas P. Duffy go to medical school?
Dr. Duffy graduated from Michigan State University College of Human Medicine in 1973.
What drugs does Dr. Douglas P. Duffy prescribe most?
In 2018 Medicare Part D data, Dr. Duffy's most prescribed drugs by claims were Calcitriol, Furosemide and Amlodipine Besylate.
How long has Dr. Douglas P. Duffy been practicing?
Dr. Duffy graduated from medical school in 1973, 53 years ago.
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