Dr. Robert J. Ruffner, MD
- Medicare services, 2024
- 701
- Medicare patients, 2024
- 332
- Part D claims, 2024
- 3,243
- Hospital affiliations
- 5
- Industry payments
- $9,888
- Practice address
- 402 East Second Street, Duluth, MN 55805
- Practice phone
- Call (218) 786-3574
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Robert J. Ruffner is a cardiologist in Duluth, Minnesota
Dr. Ruffner practices at Essentia Health-St. Mary's Medical Center in Duluth, Minnesota, part of Essentia Health.
Dr. Ruffner's NPI, 1871531632, was assigned on June 3, 2006. Dr. Ruffner graduated from Johns Hopkins University School of Medicine in 1981. Dr. Ruffner holds Pennsylvania license MD028923E.
- NPI
- 1871531632NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406854835
- NPI enumeration date
- June 3, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (218) 786-3574
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert J. Ruffner practices at 2 locations in Duluth, Minnesota
Dr. Ruffner's primary practice is Essentia Health-St. Mary's Medical Center, at 402 East Second Street, Duluth, MN 55805 in St. Louis County. The practice phone is (218) 786-3574. Dr. Ruffner also practices at Essentia Health St Marys Medical Center, 407 E 3rd St, Duluth, MN 55805.
- Essentia Health-St. Mary's Medical CenterPrimary402 East Second Street, Duluth, MN 55805 · St. Louis CountyPhone(218) 786-3574
- Essentia Health St Marys Medical Center407 E 3rd St, Duluth, MN 55805 · Saint Louis CountyPhone(218) 786-1009
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Robert J. Ruffner is affiliated with 7 sites of care and 1 medical group
Dr. Ruffner's primary practice is Essentia Health-St. Mary's Medical Center in Duluth, Minnesota, part of Essentia Health. Dr. Ruffner is also affiliated with Essentia Health-Duluth (Miller-Dwan, Building D). The medical group on file is Essentia Health-St. Mary's Medical Center. Dmand AI also links Dr. Ruffner to 3 more hospitals, 1 group practice or clinic and 1 urgent care center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert J. Ruffner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ruffner practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Essentia Health-St. Mary's Medical Center | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Essentia Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert J. Ruffner is one of 540 cardiologists in Minnesota
Cardiovascular disease is Dr. Ruffner's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Ruffner is licensed in Pennsylvania.
Specialties and state licenses
- Cardiovascular disease, PennsylvaniaPrimary
Cardiologists near Dr. Ruffner
Counts of cardiologists 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. Robert J. Ruffner billed Medicare for 701 services in 2024
CMS data shows 701 Medicare services from Dr. Ruffner across 9 procedure codes in 2024, for 332 Medicare patients. Medicare paid $32,799 for them.
Dr. Ruffner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 5432024: 37631%
- Office and hospital visits
- 2023: 3882024: 26631%
- Imaging
- 2023: 232024: 59157%
Where Dr. Ruffner's Medicare services took place, 2024
- In an office31144%
- In a facility39056%
Dr. Ruffner compared with the Minnesota median for cardiologists, 2024
- Dr. Ruffner
- Minnesota median
- Medicare services
- 701vs 733Close to median
- Medicare patients
- 332vs 48031% below
- Part D claims
- 3,000vs 4686.4 times
Medians across 521 cardiologists in Minnesota with Dmand AI profiles that report each measure.
Dr. Ruffner'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. Ruffner?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ruffner and other cardiologists in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert J. Ruffner treated 332 Medicare patients in 2024, average age 75
CMS counts 332 Medicare patients who saw Dr. Ruffner in 2024. The largest group is 65 to 74, with 171 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.78, 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. Ruffner's median patient age at 71, with 49% women.
Dr. Ruffner's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ruffner's Medicare patients by sex, 2024
- Women16550%
- Men16750%
Chronic conditions among Dr. Ruffner's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Ischemic heart disease60%
- Diabetes36%
- Atrial fibrillation35%
- Anxiety32%
- Heart failure31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ruffner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert J. Ruffner wrote 3,243 Medicare Part D claims in 2024
In 2024, Dr. Ruffner wrote 3,243 Medicare Part D claims for 278 patients. 78% of them were for generic drugs. CMS names the drug for 3,000 of them, across 48 drugs with 11 or more claims each, at $525,992 in total drug cost. In 2023, CMS named 2,924 claims across 49 drugs.
Dr. Ruffner's Part D claims by kind of drug, 2024
- Generic2,527 claims78%
- Brand-name and other716 claims22%
Dr. Ruffner'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. Ruffner's Part D claims, 2024
- Antibiotics1%31 of 3,243 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: 2,9242024: 3,0003%
Drugs named by CMS: 48 in 2024, 49 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. Robert J. Ruffner takes part in Medicare
Dr. Ruffner 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)
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Dr. Robert J. Ruffner received $9,888 in industry payments from 2016 to 2025
CMS Open Payments shows 600 general payments to Dr. Ruffner from 30 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $1,783.
General payments to Dr. Ruffner by program year, 2016 to 2025
General payments to Dr. Ruffner by kind, 2016 to 2025
- Food and beverage$9,840100%
- Education$480%
Companies that paid Dr. Ruffner 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. Robert J. Ruffner graduated from Johns Hopkins University School of Medicine
Dr. Ruffner graduated from Johns Hopkins University School of Medicine in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert J. Ruffner'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) |
| 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. Robert J. Ruffner
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. Robert J. Ruffner's NPI number?
Dr. Robert J. Ruffner's NPI number is 1871531632. It was assigned on June 3, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert J. Ruffner?
Dr. Robert J. Ruffner is a cardiologist in Duluth, Minnesota. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Robert J. Ruffner practice?
Dr. Ruffner practices at 402 East Second Street, Duluth, MN 55805. Dr. Ruffner also practices at 407 E 3rd St, Duluth, MN 55805. Dr. Ruffner's primary practice is Essentia Health-St. Mary's Medical Center in Duluth, Minnesota, part of Essentia Health. Dmand AI also links Dr. Ruffner to 3 hospitals, 1 group practice or clinic and 1 urgent care center.
What is Dr. Robert J. Ruffner's office phone number?
The practice phone on file for Dr. Ruffner is (218) 786-3574.
What is Dr. Robert J. Ruffner's medical license number?
Dr. Ruffner holds Pennsylvania license MD028923E.
Which hospitals is Dr. Robert J. Ruffner affiliated with?
Dr. Ruffner practices at Essentia Health-St. Mary's Medical Center in Duluth, Minnesota. Dr. Ruffner is also affiliated with Essentia Health-Duluth (Miller-Dwan, Building D). Dmand AI links Dr. Ruffner to 3 more hospitals.
What medical group is Dr. Robert J. Ruffner part of?
Dr. Ruffner is linked to Essentia Health-St. Mary's Medical Center.
Does Dr. Robert J. Ruffner accept Medicare?
Yes. CMS data shows Dr. Ruffner billed Medicare for 701 services in 2024, and Dr. Ruffner accepts Medicare assignment.
How many Medicare patients does Dr. Robert J. Ruffner see?
CMS counts 332 Medicare patients who saw Dr. Ruffner in 2024, with an average age of 75.
What services does Dr. Robert J. Ruffner bill to Medicare?
In 2024, Dr. Ruffner's most billed Medicare services were office visit, established patient (99214), heart test or procedure (93010) and heart test or procedure (93000).
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Where did Dr. Robert J. Ruffner go to medical school?
Dr. Ruffner graduated from Johns Hopkins University School of Medicine in 1981.
What drugs does Dr. Robert J. Ruffner prescribe most?
In 2024 Medicare Part D data, Dr. Ruffner's most prescribed drugs by claims were Eliquis, Atorvastatin Calcium and Metoprolol Tartrate.
Has Dr. Robert J. Ruffner received payments from drug or device companies?
CMS Open Payments shows $9,888 in general payments to Dr. Ruffner from 30 companies from 2016 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Robert J. Ruffner been practicing?
Dr. Ruffner graduated from medical school in 1981, 45 years ago.
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