Dr. Mark W. Erhard, MD
- Medicare services, 2024
- 1,023
- Medicare patients, 2024
- 732
- Part D claims, 2024
- 1,856
- Hospital affiliations
- 5
- Industry payments
- $475
- Practice address
- 915 East 1st Street, Duluth, MN 55805
- Practice phone
- Call (218) 249-5555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Erhard'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. Mark W. Erhard is an interventional cardiologist in Duluth, Minnesota
Dr. Erhard practices at Aspirus St. Luke's Hospital in Duluth, Minnesota, part of Aspirus.
Dr. Erhard's NPI, 1710962188, was assigned on December 8, 2005. Dr. Erhard graduated from University of South Florida College of Medicine in 1986. Dr. Erhard holds Minnesota license 32857.
- NPI
- 1710962188NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012906993
- NPI enumeration date
- December 8, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (218) 249-5555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark W. Erhard practices at Aspirus St. Luke's Hospital in Duluth, Minnesota
Dr. Erhard's primary practice is Aspirus St. Luke's Hospital, at 915 East 1st Street, Duluth, MN 55805 in St. Louis County. The practice phone is (218) 249-5555.
- Aspirus St. Luke's Hospital915 East 1st Street, Duluth, MN 55805 · St. Louis CountyPhone(218) 249-5555
Source: Dmand AI Affiliation Data
Dr. Mark W. Erhard is affiliated with 7 sites of care and 2 medical groups
Dr. Erhard's primary practice is Aspirus St. Luke's Hospital in Duluth, Minnesota, part of Aspirus. Dr. Erhard is also affiliated with Fairview Range Hospital. The medical group on file is Aspirus St. Luke's Hospital. Dmand AI also links Dr. Erhard to 3 more hospitals, 1 physician office, 1 group practice or clinic and 1 medical group, 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. Mark W. Erhard's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Erhard practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aspirus St. Luke's Hospital | Available with a free account |
| +6 more sites and 1 medical group | 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 Aspirus and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark W. Erhard is one of 82 interventional cardiologists in Minnesota
Interventional cardiology is Dr. Erhard's primary specialty in the NPI Registry, under taxonomy code 207RI0011X. Dr. Erhard is licensed in Minnesota.
Specialties and state licenses
- Interventional cardiology, MinnesotaPrimary
Interventional cardiologists near Dr. Erhard
Counts of interventional 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. Mark W. Erhard billed Medicare for 1,023 services in 2024
CMS data shows 1,023 Medicare services from Dr. Erhard across 11 procedure codes in 2024, for 732 Medicare patients. Medicare paid $31,345 for them.
Dr. Erhard's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 8322024: 7628%
- Office and hospital visits
- 2023: 2282024: 229No change
- Imaging
- 2023: 252024: 3228%
Where Dr. Erhard's Medicare services took place, 2024
- In an office969%
- In a facility92791%
Dr. Erhard compared with the Minnesota median for interventional cardiologists, 2024
- Dr. Erhard
- Minnesota median
- Medicare services
- 1,023vs 65556% above
- Medicare patients
- 732vs 42074% above
- Part D claims
- 1,713vs 7122.4 times
Medians across 81 interventional cardiologists in Minnesota with Dmand AI profiles that report each measure.
Dr. Erhard'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. Erhard and other interventional cardiologists in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark W. Erhard treated 732 Medicare patients in 2024, average age 74
CMS counts 732 Medicare patients who saw Dr. Erhard in 2024. The largest group is 65 to 74, with 265 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 1.52, 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. Erhard's median patient age at 74, with 45% women.
Dr. Erhard's Medicare patients by age, 2024
Dr. Erhard's Medicare patients by sex, 2024
- Women34848%
- Men38452%
Chronic conditions among Dr. Erhard's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Ischemic heart disease43%
- Atrial fibrillation35%
- Diabetes34%
- Heart failure34%
- Chronic kidney disease29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Erhard's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark W. Erhard wrote 1,856 Medicare Part D claims in 2024
In 2024, Dr. Erhard wrote 1,856 Medicare Part D claims for 352 patients. 92% of them were for generic drugs. CMS names the drug for 1,713 of them, across 28 drugs with 11 or more claims each, at $130,061 in total drug cost. In 2023, CMS named 1,327 claims across 23 drugs.
Dr. Erhard's Part D claims by kind of drug, 2024
- Generic1,704 claims92%
- Brand-name152 claims8%
Dr. Erhard'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,3272024: 1,71329%
Drugs named by CMS: 28 in 2024, 23 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. Mark W. Erhard takes part in Medicare
Dr. Erhard 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. Mark W. Erhard received $475 in industry payments from 2016 to 2025
CMS Open Payments shows 9 general payments to Dr. Erhard from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $280.
General payments to Dr. Erhard by program year, 2016 to 2025
Companies that paid Dr. Erhard 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. Mark W. Erhard graduated from University of South Florida College of Medicine
Dr. Erhard graduated from University of South Florida College of Medicine in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark W. Erhard'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) |
| 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. Mark W. Erhard
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. Mark W. Erhard's NPI number?
Dr. Mark W. Erhard's NPI number is 1710962188. It was assigned on December 8, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark W. Erhard?
Dr. Mark W. Erhard is an interventional cardiologist in Duluth, Minnesota. The primary specialty in the NPI Registry is Interventional Cardiology Physician (taxonomy code 207RI0011X).
Where does Dr. Mark W. Erhard practice?
Dr. Erhard practices at 915 East 1st Street, Duluth, MN 55805. Dr. Erhard's primary practice is Aspirus St. Luke's Hospital in Duluth, Minnesota, part of Aspirus. Dmand AI also links Dr. Erhard to 3 hospitals, 1 physician office, 1 group practice or clinic and 1 medical group.
What is Dr. Mark W. Erhard's office phone number?
The practice phone on file for Dr. Erhard is (218) 249-5555.
What is Dr. Mark W. Erhard's medical license number?
Dr. Erhard holds Minnesota license 32857.
Which hospitals is Dr. Mark W. Erhard affiliated with?
Dr. Erhard practices at Aspirus St. Luke's Hospital in Duluth, Minnesota. Dr. Erhard is also affiliated with Fairview Range Hospital. Dmand AI links Dr. Erhard to 3 more hospitals.
What medical group is Dr. Mark W. Erhard part of?
Dr. Erhard is linked to Aspirus St. Luke's Hospital. Dmand AI links Dr. Erhard to 1 more medical group.
Does Dr. Mark W. Erhard accept Medicare?
Yes. CMS data shows Dr. Erhard billed Medicare for 1,023 services in 2024, and Dr. Erhard accepts Medicare assignment.
How many Medicare patients does Dr. Mark W. Erhard see?
CMS counts 732 Medicare patients who saw Dr. Erhard in 2024, with an average age of 74.
What services does Dr. Mark W. Erhard bill to Medicare?
In 2024, Dr. Erhard's most billed Medicare services were heart test or procedure (93010), heart test or procedure (93306) and office visit, established patient (99214).
Show 4 more questionsShow fewer questions
Where did Dr. Mark W. Erhard go to medical school?
Dr. Erhard graduated from University of South Florida College of Medicine in 1986.
What drugs does Dr. Mark W. Erhard prescribe most?
In 2024 Medicare Part D data, Dr. Erhard's most prescribed drugs by claims were Metoprolol Succinate, Rosuvastatin Calcium and Losartan Potassium.
Has Dr. Mark W. Erhard received payments from drug or device companies?
CMS Open Payments shows $475 in general payments to Dr. Erhard from 5 companies from 2016 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Mark W. Erhard been practicing?
Dr. Erhard graduated from medical school in 1986, 40 years ago.
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