Mark W. Erhard, MD
Interventional Cardiology Physician · Duluth, MN
Mark W. Erhard, MD is an interventional cardiology physician with a practice address in Duluth, Minnesota, and NPI 1710962188, issued on Dec 8, 2005. Check the license (Minnesota 32857, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Mark W. Erhard
- Credential
- MD
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License number
- 32857 MN
Self-reported in NPPES; status is on the state search - Practice location
- 1001 E Superior St Ste 201, Duluth, MN 55802
- Phone
- (218) 249-5555
- Enumerated
- Dec 8, 2005
- Record last updated
- Mar 7, 2023
- Medicaid ID
- 669267200 MN
- Medicare enrollment
- Enrolled (PECOS I20050512000098); accepts Medicare assignment
- Medical or professional school
- University Of South Florida College Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest interventional cardiology physician records → All 97 in Minnesota → Look up another NPI →
Also registered at 1001 E Superior St Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Yan Dong, MDClinical Cardiac Electrophysiology Physician1043507577
- Lindsay Hinaus, PA-CPhysician Assistant1396526349
- Kathryn Johnson, APRN, CNPNurse Practitioner1649903006
- Fayja LichtenbergPhysician Assistant1750197547
- Carrie Ronstrom, MDUrology Physician1265952907
- Courtney Shaw, CNPFamily Nurse Practitioner1487316840
Verify Mark W. Erhard in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 32857Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average interventional cardiology physician in 2024
1,856 Medicare Part D claims for 352 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Metoprolol Succinate305 claims
- Rosuvastatin Calcium227 claims
- Losartan Potassium192 claims
- Amlodipine Besylate107 claims
- Atorvastatin Calcium102 claims
- Ezetimibe78 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $60.93
1 payment: food and beverage; the largest payer was Abbott Laboratories. The 6,394 providers of this specialty with any payment received $7,062.29 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- St. Luke's Hospital OF DuluthDuluth, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark W. Erhard among 97 interventional cardiology physician records in Minnesota
Mark W. Erhard, MD is one of 97 interventional cardiology physician records with a practice address in Minnesota. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileYes · 88% of these records are
- Graduated1986 · median 2003 among the 85 with a school on file
- Record last updated2023 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0011X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Interventional Cardiology Physician providers in Minnesota
There are 97 interventional cardiology physician records in Minnesota.
All 97 in Minnesota → Every provider in Duluth → Interventional Cardiology Physician nationwide →
The 8 interventional cardiology physician records with the nearest ZIP codes
- Mark Berry, D.O.Duluth, MN 558021336121938
- Leif ChristiansonDuluth, MN 558021477715530
- Scott Mikesell, DODuluth, MN 558021881684942
- Kalkidan Bishu, M.D.Duluth, MN 558051881887818
- Wilson GineteDuluth, MN 558051922055607
- Faraz Nasim Kazmi, MBBSDuluth, MN 558051306286463
- Jason Schultz, MDDuluth, MN 558051235331604
- George Zawadowski, MDDuluth, MN 558051851604318
Common questions
What is Mark W. Erhard, MD's NPI number?
Mark W. Erhard, MD's National Provider Identifier (NPI) is 1710962188, issued on Dec 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark W. Erhard, MD located?
The NPPES record lists a practice address at 1001 E Superior St Ste 201, Duluth, MN, 55802. Phone: (218) 249-5555. Providers update this record themselves, so call before visiting.
How can I verify Mark W. Erhard, MD's license?
NPPES lists Minnesota license number 32857, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark W. Erhard, MD prescribe under Medicare Part D?
In 2024, Mark W. Erhard, MD had 1,856 Medicare Part D claims for 352 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.