Michael J. Katsnelson, M.D.

Primary specialty

Neurology PhysicianTaxonomy code 2084N0400X

License

62700 Issued in WI

Practice address

1000 N Oak Avenue
Marshfield, WI 54449-5703

Phone

(715) 387-5511

NPI assigned

Jul 9, 2008

Sex

Male

Sole proprietor

No

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

Specialties & licenses 7

Addresses

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in WI, PA, AR, MS, TN, OH, NY, CT, NJ9 enrollments

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 9

Specialty

Neurology

Education

Drexel University College of Medicine, 2005

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Wellspan Medical GroupGroup PAC ID 1951213115, 2,438 clinicians

Baptist Memorial Medical Group, Inc.Group PAC ID 5193610228, 581 clinicians

MCHS Hospitals IncGroup PAC ID 5698071173, 1,195 clinicians

Evangelical Medical Services OrganizationGroup PAC ID 9133033087, 255 clinicians

East Post Road Medical Services PCGroup PAC ID 6406198506, 419 clinicians

Northeast Arkansas Clinic Charitable Foundation, Inc.Group PAC ID 2961547526, 294 clinicians

Prospect CT Medical Foundation IncGroup PAC ID 7416244496, 287 clinicians

Practice Associates Medical GroupGroup PAC ID 5890703177, 1,412 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Baptist Memorial Hospital North Ms Hospital, Oxford, MS, CCN 250034
• Marshfield Medical Center Hospital, Marshfield, WI, CCN 520037
• Baptist Memorial Hospital Jonesboro, Inc. Hospital, Jonesboro, AR, CCN 040118
• Baptist Memorial Hospital Desoto Hospital, Southaven, MS, CCN 250141
• Baptist Memorial Hospital Union City Hospital, Union City, TN, CCN 440130

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations (25 of 31)

Networks

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

Interoperability endpoints

• Direct secure messaging: mkatsnelson489642@wellspan.direct-ci.com
• Direct secure messaging: him@marshfieldclinichealthsystem.cernerdirect.com
• Direct secure messaging: michael.katsnelson@marshfieldclinichealthsystem.cernerdirect.com

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.

• MCHS Hospitals Inc

  • Clinic/Center
  • Marshfield, WI
  • NPI 1093221434
  Medicare reassignment Care Compare group NPD
• Baptist Memorial Medical Group Inc

  • Internal Medicine Physician
  • Memphis, TN
  • NPI 1306089206

  AR, MS

  Medicare reassignment Care Compare group NPD
• East Post Road Medical Services PC

  • Emergency Medicine Physician
  • White Plains, NY
  • NPI 1841767274

  Neurology

  Medicare reassignment Care Compare group NPD
• Evangelical Medical Services Organization

  • Surgery Physician
  • Lewisburg, PA
  • NPI 1205928967

  Neurology

  Medicare reassignment Care Compare group NPD
• Northeast Arkansas Clinic Charitable Foundation, Inc.

  • Multi-Specialty Clinic/Center
  • Jonesboro, AR
  • NPI 1861721839
  Medicare reassignment Care Compare group NPD
• Practice Associates Medical Group

  • Internal Medicine Physician
  • Morristown, NJ
  • NPI 1427016385
  Medicare reassignment Care Compare group NPD
• Prospect CT Medical Foundation, Inc.

  • Family Medicine Physician
  • Manchester, CT
  • NPI 1144677568
  Medicare reassignment Care Compare group NPD
• Wellspan Medical Group

  • Gastroenterology Physician
  • York, PA
  • NPI 1669770004
  Medicare reassignment Care Compare group NPD
• Beaver Dam Community Hospitals Inc

  • Clinic/Center
  • Beaver Dam, WI
  • NPI 1972188555
  Medicare reassignment NPD
• Marshfield Clinic Inc

  • Clinic/Center
  • Marshfield, WI
  • NPI 1952347981
  Medicare reassignment NPD
• Bristol Hospital Multi Specialty Group, Inc

  • General Practice Physician
  • Bristol, CT
  • NPI 1649265679
  Medicare reassignment NPD
• Mount Carmel Health System

  • Internal Medicine Physician
  • Columbus, OH
  • NPI 1457617235
  Medicare reassignment NPD

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

• MCHS Hospitals Inc

  • Rural Acute Care Hospital
  • Marshfield, WI
  • NPI 1942749387
  Care Compare affiliation
• Baptist Memorial Hospital North Mississippi, Inc

  • General Acute Care Hospital
  • Oxford, MS
  • NPI 1053375576
  Care Compare affiliation
• Baptist Memorial Hospital- Union City Inc

  • General Acute Care Hospital
  • Union City, TN
  • NPI 1114981768
  Care Compare affiliation
• Baptist Memorial Hospital-Desoto, Inc,

  • General Acute Care Hospital
  • Southaven, MS
  • NPI 1194789818
  Care Compare affiliation
• Baptist Memorial Hospital-Jonesboro Inc

  • General Acute Care Hospital
  • Jonesboro, AR
  • NPI 1386699353
  Care Compare affiliation

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

{
    "created_epoch": "1215561600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777420800000",
    "number": "1013170067",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1000 N OAK AVE",
            "city": "MARSHFIELD",
            "state": "WI",
            "postal_code": "544495703",
            "telephone_number": "443-622-5894"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 N OAK AVENUE",
            "city": "MARSHFIELD",
            "state": "WI",
            "postal_code": "544495703",
            "telephone_number": "715-387-5511"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "71 Haynes St",
            "address_purpose": "LOCATION",
            "city": "Manchester",
            "state": "CT",
            "postal_code": "060404131",
            "country_code": "US",
            "telephone_number": "860-646-1222",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3 Hospital Dr Ste 206",
            "address_purpose": "LOCATION",
            "city": "Lewisburg",
            "state": "PA",
            "postal_code": "178379394",
            "country_code": "US",
            "telephone_number": "570-522-9771",
            "fax_number": "570-522-9772",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "8000 Towers Crescent Dr",
            "address_2": "STE 1350",
            "address_purpose": "LOCATION",
            "city": "Vienna",
            "state": "VA",
            "postal_code": "221826207",
            "country_code": "US",
            "telephone_number": "866-450-1918",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KATSNELSON",
        "first_name": "MICHAEL",
        "middle_name": "J.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-07-09",
        "last_updated": "2026-04-29",
        "certification_date": "2026-04-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084V0102X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Vascular Neurology",
            "state": "FL",
            "license": "ME107144",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "CT",
            "license": "63574",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "WI",
            "license": "62700",
            "primary": true
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "AR",
            "license": "E-8511",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "TN",
            "license": "47044",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "MS",
            "license": "22263",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "PA",
            "license": "MD435614",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "him@marshfieldclinichealthsystem.cernerdirect.com",
            "affiliation": "N",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "address_1": "8000 Towers Crescent Dr",
            "address_2": "STE 1350",
            "city": "Vienna",
            "state": "VA",
            "country_code": "US",
            "postal_code": "221826207",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "him@marshfieldclinichealthsystem.cernerdirect.com",
            "affiliation": "N",
            "address_1": "1000 N Oak Avenue",
            "city": "Marshfield",
            "state": "WI",
            "country_code": "US",
            "postal_code": "544495703",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Percy N Karanjia, MD
• Jaime Corinne Karl
• Jessie Ann Karl, REGISTERED NURSE
• Sabrina Kasner
• Jessica M. Kasper-Logan, PA
• Siddhartha Kattamanchi, MD
• Robert Albert Kay, DDS MSD SC
• Meredith Kean, PHARMD
• Maria A. Keenan, CRNA
• Owen B Keenan, MD

• Neurology Physician in Marshfield, WI
• Providers in Marshfield, WI by specialty
• Neurology Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 29, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.