NPIMap

Individual provider Active NPI

Mark W Erhard, MD

  • Interventional Cardiology Physician
  • Duluth, MN
National Provider Identifier
1710962188
Registry record updated Mar 7, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Interventional Cardiology PhysicianTaxonomy code 207RI0011X
License
32857 Issued in MN
Practice address
1001 E Superior St Ste 201
Duluth, MN 55802-2228
Phone
(218) 249-5555
NPI assigned
Dec 8, 2005
Last updated
Mar 7, 2023By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 7, 2023

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Interventional Cardiology Physician 207RI0011X 32857 MN Primary

Addresses

Primary practice location

1001 E Superior St Ste 201
Duluth, MN 55802-2228

Mailing address

1001 E Superior St Ste 201
Duluth, MN 55802-2228
Phone (218) 249-5555

Other identifiers 1

IdentifierTypeStateIssuer
669267200MedicaidMN

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address him@slk.direct.slhduluth.com

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MN, WI2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20050512000098 MN Practitioner - Cardiovascular Disease (Cardiology) 7012906993 Reassigns benefits to 3 organizations
I20220304001267 WI Practitioner - Cardiovascular Disease (Cardiology) 7012906993 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Cardiovascular Disease (Cardiology)
Education
University of South Florida College of Medicine, 1986
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
St. Luke's Hospital of DuluthGroup PAC ID 7113834839, 409 clinicians

Practice addresses (Care Compare)

1001 E Superior St
Duluth, MN 55802-2228
Phone (218) 279-6230

1011 E 1St St
Duluth, MN 55805-2242
Phone (218) 249-7000

1015 E 1St St
Duluth, MN 55805-2242
Phone (218) 249-7860

325 11TH Ave
Two Harbors, MN 55616-1300
Phone (218) 834-7300

4570 County Rd
Suite 61
Moose Lake, MN 55767-9401
Phone (218) 485-4724

915 E 1St St
Duluth, MN 55805-2107
Phone (218) 249-5439

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Lake View Memorial Hospital, Inc CurrentSince Oct 18, 2025 Accepting new patients
St. Luke's Hospital of Duluth CurrentSince Mar 8, 2021 Accepting new patients
St. Luke's Hospital of Duluth CurrentSince Mar 8, 2021 Accepting new patients
St. Luke's Hospital of Duluth Current Accepting new patients
St. Luke's Hospital of Duluth CurrentSince Feb 3, 2022 Accepting new patients
St. Luke's Hospital of Duluth Current Accepting new patients
Lake View Memorial Hospital, Inc. CurrentSince Oct 18, 2025 Accepting new patients
Lake View Memorial Hospital, Inc. CurrentSince Oct 18, 2025 Accepting new patients
Medical Associates of Minnesota PastSince May 1, 1995 Accepting new patients
St. Luke's Hospital of Duluth Past Accepting new patients

Locations

29980 Network Pl
Chicago, IL 60673

1001 E Superior St
Ste 201
Duluth, MN 55802
Phone (218) 249-3057

1001 E Superior St
Ste L201
Duluth, MN 55802
Phone (218) 249-3057

1015 E 1st St
Duluth, MN 55805
Phone (218) 249-7860

915 E 1st St
Duluth, MN 55805
Phone (218) 249-5352

325 11th Ave
Two Harbors, MN 55616
Phone (218) 834-5520

1615 Maple Ln
Ashland, WI 54806
Phone (715) 682-4563

109 N 28th St E
Superior, WI 54880
Phone (715) 395-3900

Interoperability endpoints

  • Direct secure messaging: merhard237410@direct.aspirus.org

Organizations & group practices 10

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 32

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 32

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1134000000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1678147200000",
    "number": "1710962188",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1001 E SUPERIOR ST STE 201",
            "city": "DULUTH",
            "state": "MN",
            "postal_code": "558022228",
            "telephone_number": "218-249-5555"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1001 E SUPERIOR ST STE 201",
            "city": "DULUTH",
            "state": "MN",
            "postal_code": "558022228",
            "telephone_number": "218-249-5555"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ERHARD",
        "first_name": "MARK",
        "middle_name": "W",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-12-08",
        "last_updated": "2023-03-07",
        "certification_date": "2022-02-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0011X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Interventional Cardiology",
            "state": "MN",
            "license": "32857",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "669267200",
            "state": "MN"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "him@slk.direct.slhduluth.com",
            "affiliation": "N",
            "address_1": "1001 E Superior St Ste 201",
            "city": "Duluth",
            "state": "MN",
            "country_code": "US",
            "postal_code": "558022228",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Duluth, MN

Sources for this page

Verify at the official NPI Registry.