John Kalasky, D.O.

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

34012860 Issued in OH

Practice address

401 Matthew St
Marietta, OH 45750-1635

Phone

(740) 374-7000

Fax

(740) 374-7701

NPI assigned

Mar 26, 2014

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in OH, MI2 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 2

Specialty

Internal Medicine

Education

Other, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mymichigan Medical GroupGroup PAC ID 4981501939, 174 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mymichigan Medical Center Alpena Hospital, Alpena, MI, CCN 230036
• HMHP St Elizabeth Boardman Health Center Hospital, Boardman, OH, CCN 360276

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

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.

• Mymichigan Medical Group

  • Family Medicine Physician
  • Midland, MI
  • NPI 1740230127
  Medicare reassignment Care Compare group
• Hospitalist Medicine Physicians of Ohio, Professional Corporation

  • Internal Medicine Physician
  • Columbus, OH
  • NPI 1043572290
  Medicare reassignment NPD
• Usacs Integrated Acute Care Services of Ohio, LLC

  • Internal Medicine Physician
  • Springfield, OH
  • NPI 1043805690
  Medicare reassignment NPD
• Covenant Medical Center, Inc.

  • Emergency Medicine Physician
  • Saginaw, MI
  • NPI 1972590412
  Medicare reassignment NPD
• Oakland Nocturnal Physicians PLLC

  • Internal Medicine Physician
  • Pontiac, MI
  • NPI 1205608965
  Medicare reassignment NPD
• Portage Physician Practices Inc

  • Internal Medicine Physician
  • Hancock, MI
  • NPI 1225461684
  Medicare reassignment NPD
• Sound Inpatient Physicians-Michigan, PLLC

  • Internal Medicine Physician
  • Kalamazoo, MI
  • NPI 1093967861
  Medicare reassignment NPD
• Blanchard Valley Regional Health Center

  • Family Medicine Physician
  • Findlay, OH
  • NPI 1083665251

  Internal Medicine

  NPD
• Blanchard Valley Regional Health Center

  • Rehabilitation Hospital Unit
  • Findlay, OH
  • NPI 1578336400
  NPD
• Blanchard Valley Regional Health Center

  • Emergency Medicine Physician
  • Findlay, OH
  • NPI 1699718320

  Hospitalist

  NPD
• Covenant Medical Center, Inc

  • Family Medicine Physician
  • Saginaw, MI
  • NPI 1619412376

  Internal Medicine

  NPD
• Covenant Medical Center, Inc.

  • Family Medicine Physician
  • Saginaw, MI
  • NPI 1366597544

  Internal Medicine

  NPD

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

• Mercy Health Youngstown LLC

  • General Acute Care Hospital
  • Youngstown, OH
  • NPI 1790868982
  Care Compare affiliation
• Mymichigan Medical Center Alpena

  • Rural Acute Care Hospital
  • Sault Sainte Marie, MI
  • NPI 1619791431
  Care Compare affiliation
• Mymichigan Medical Center Alpena

  • Rural Acute Care Hospital
  • Alpena, MI
  • NPI 1619914652
  Care Compare affiliation
• Mymichigan Medical Center Alpena

  • Internal Medicine Physician
  • Alpena, MI
  • NPI 1942302302

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1395792000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775606400000",
    "number": "1962829119",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6 HENDERSON CIR",
            "city": "WILLIAMSTOWN",
            "state": "WV",
            "postal_code": "261878343",
            "telephone_number": "303-335-5002"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "401 MATTHEW ST",
            "city": "MARIETTA",
            "state": "OH",
            "postal_code": "457501635",
            "telephone_number": "740-374-7000",
            "fax_number": "740-374-7701"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1106 Colegate Dr",
            "address_purpose": "LOCATION",
            "city": "Marietta",
            "state": "OH",
            "postal_code": "457501323",
            "country_code": "US",
            "telephone_number": "740-374-7700",
            "fax_number": "740-374-7701",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1501 W Chisholm St",
            "address_purpose": "LOCATION",
            "city": "Alpena",
            "state": "MI",
            "postal_code": "497071401",
            "country_code": "US",
            "telephone_number": "989-839-1644",
            "fax_number": "989-839-3029",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KALASKY",
        "first_name": "JOHN",
        "credential": "D.O.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2014-03-26",
        "last_updated": "2026-04-08",
        "certification_date": "2026-04-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OH",
            "license": "34.012860",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "MI",
            "license": "5101027288",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "OH",
            "license": "34012860",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "john.kalasky@mmhs.medicity.net",
            "affiliation": "N",
            "address_1": "401 Matthew St",
            "city": "Marietta",
            "state": "OH",
            "country_code": "US",
            "postal_code": "457501635",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "john.kalasky@mmhs.medicity.net",
            "affiliation": "N",
            "address_1": "1106 Colegate Dr",
            "city": "Marietta",
            "state": "OH",
            "country_code": "US",
            "postal_code": "457501323",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Yogesh Jonnagadla, MD
• Sara L Jordan
• Joseph Cooper M.D. Inc.
• Matthew Alan Joy
• James R Judson
• Kaleidoscope Care LLC
• Sri Ranjini Kanagalingam, MD
• Jagdesh Kandala, MD
• Mina Kangarloo, PHARMD
• Abigail N Kapple

• Hospitalist Physician in Marietta, OH
• Providers in Marietta, OH by specialty
• Hospitalist Physician in Ohio

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 8, 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.