Individual provider Active NPI

Erik Matthew Johnsen, MD

  • Cardiovascular Disease Physician
  • Valhalla, NY
National Provider Identifier
1104320977
Registry record updated Sep 2, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Cardiovascular Disease PhysicianTaxonomy code 207RC0000X
License
33711201 Issued in NY
Practice address
100 Woods Rd
Valhalla, NY 10595-1530
Phone
(914) 493-4900
NPI assigned
Mar 19, 2018
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 2, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Cardiovascular Disease Physician 207RC0000X 33711201 NY Primary

Addresses

Primary practice location

100 Woods Rd
Valhalla, NY 10595-1530

Mailing address

100 Woods Rd
Valhalla, NY 10595-1530
Phone (914) 493-4900

Other practice location 1

1430 Tulane Ave # 8548
New Orleans, LA 70112-2632
Phone (504) 988-5152

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address erik.johnsen@wmchealth.cernerdirect.com Direct

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250703001096 NY Practitioner - Cardiovascular Disease (Cardiology)Practitioner - Internal Medicine 2860905627 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Cardiovascular Disease (Cardiology)Also: Internal Medicine
Education
Rutgers New Jersey Medical School, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

100 Woods Rd
Valhalla, NY 10595-1530

19 Bradhurst Ave
Hawthorne, NY 10532-2140

877 Stewart Ave
Suite 12
Garden City, NY 11530-4803
Phone (914) 598-7651

95 Grasslands Rd
Valhalla, NY 10595-1652
Phone (914) 493-6940

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
337112NYMDLicensed Practical Nurse
33711201NYMDCardiovascular Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Westchester Medical Center Advanced Physician Services, PC Current Accepting new patients
Westchester Medical Center Advanced Physician Services PC CurrentSince Aug 1, 2025 Accepting new patients
Westchester Medical Center Past Accepting new patients
Westchester County Health Care Corporation Past Accepting new patients

Locations

19 Bradhurst Ave
Ste 3100N
Hawthorne, NY 10532
Phone (914) 231-8373

95 Grasslands Rd
Valhalla, NY 10595
Phone (914) 493-2961

100 Woods Rd
Valhalla, NY 10595
Phone (914) 490-7000

Networks

  • Healthfirst Medicare Network H9678
  • Healthfirst Medicare Network H1722
  • Healthfirst Medicare Network H3359
  • Healthfirst Medicare Network H5989

Interoperability endpoints

  • Direct secure messaging: erik.johnsen@wmchealth.cernerdirect.com
  • Direct secure messaging: ejohnsen528315@direct.ahsys.org
  • FHIR API: https://fhir-myrecord.cerner.com/r4/0e5efebe-b60c-458e-971a-ee39e08a2178/

Organizations & group practices 4

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

Hospital & facility affiliations 5

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

NPI Registry JSON

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

{
    "created_epoch": "1521417600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756771200000",
    "number": "1104320977",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 WOODS RD",
            "city": "VALHALLA",
            "state": "NY",
            "postal_code": "105951530",
            "telephone_number": "914-493-4900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 WOODS RD",
            "city": "VALHALLA",
            "state": "NY",
            "postal_code": "105951530",
            "telephone_number": "914-493-4900"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1430 Tulane Ave # 8548",
            "address_purpose": "LOCATION",
            "city": "New Orleans",
            "state": "LA",
            "postal_code": "701122632",
            "country_code": "US",
            "telephone_number": "504-988-5152",
            "fax_number": "504-988-4237",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "JOHNSEN",
        "first_name": "ERIK",
        "middle_name": "MATTHEW",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-03-19",
        "last_updated": "2025-09-02",
        "certification_date": "2025-09-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "NY",
            "license": "33711201",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "erik.johnsen@wmchealth.cernerdirect.com",
            "affiliation": "N",
            "endpointDescription": "APS Cardiology",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCDA",
            "address_1": "100 Woods Rd",
            "city": "Valhalla",
            "state": "NY",
            "country_code": "US",
            "postal_code": "105951530",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Valhalla, NY

Sources for this page

Verify at the official NPI Registry.