James P Mackessy, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

35.060234 Issued in OH

Practice address

680 Buckles CT N Ste 1a
Columbus, OH 43230-6928

Phone

(614) 986-0125

Fax

(614) 237-1646

NPI assigned

Jun 23, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Other names 1

• James Patrick Mackessy Other name

Medicare fee-for-service enrollment

Enrolled in OH

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

Specialty

Family Practice

Education

Wright State University Boonshoft School of Medicine, 1989

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

American Health Network of Ohio, LLCGroup PAC ID 3173427721, 54 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Riverside Methodist Hospital Hospital, Columbus, OH, CCN 360006
• Grant Medical Center Hospital, Columbus, OH, CCN 360017
• Mount Carmel East & West Hospital, Columbus, OH, CCN 360035
• Ohio State University State Health System Hospital, Columbus, OH, CCN 360085
• James Cancer Hospital & Solove Research Institute Hospital, Columbus, OH, CCN 360242
• Westerwood Rehabilitation Nursing home, Columbus, OH, CCN 365399

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jmackessy210954@direct.optum.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.

• American Health Network of Ohio, LLC

  • Family Medicine Physician
  • Columbus, OH
  • NPI 1386675544
  Medicare reassignment Care Compare group NPD
• Ohiohealth Corporation

  • Family Medicine Physician
  • Columbus, OH
  • NPI 1578545273
  Medicare reassignment NPD
• American Health Network of Ohio, LLC

  • Radiology Clinic/Center
  • Columbus, OH
  • NPI 1548142987
  NPD
• Ohiohealth Corporation

  • Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
  • Columbus, OH
  • NPI 1265627301
  NPD
• Ohiohealth Corporation

  • Anesthesiology Physician
  • Columbus, OH
  • NPI 1407292105
  NPD

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

• Arthur G James Cancer Hospital and Research Institute

  • Special Hospital
  • Columbus, OH
  • NPI 1124127683
  Care Compare affiliation
• Friendship Village of Columbus Ohio Inc

  • Skilled Nursing Facility
  • Columbus, OH
  • NPI 1730247024

  Nursing home

  Care Compare affiliation
• Mount Carmel Health System

  • General Acute Care Hospital
  • Grove City, OH
  • NPI 1710067376
  Care Compare affiliation
• Mount Carmel Health System

  • General Acute Care Hospital
  • Columbus, OH
  • NPI 1982784534
  Care Compare affiliation
• Ohio State University Hospitals

  • Rehabilitation Hospital Unit
  • Columbus, OH
  • NPI 1184723637
  Care Compare affiliation
• Ohio State University Hospitals

  • General Acute Care Hospital
  • Columbus, OH
  • NPI 1447359997
  Care Compare affiliation
• Ohio State University Hospitals

  • Psychiatric Hospital Unit
  • Columbus, OH
  • NPI 1790876183
  Care Compare affiliation
• Ohiohealth Corporation

  • General Acute Care Hospital
  • Columbus, OH
  • NPI 1255377149
  Care Compare affiliation
• Ohiohealth Corporation

  • General Acute Care Hospital
  • Columbus, OH
  • NPI 1467484972
  Care Compare affiliation
• Ohiohealth Corporation

  • Clinical Medical Laboratory
  • Columbus, OH
  • NPI 1710916945

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1151020800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779148800000",
    "number": "1841226727",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "680 BUCKLES CT N STE 1A",
            "city": "COLUMBUS",
            "state": "OH",
            "postal_code": "432306928",
            "telephone_number": "614-986-0125",
            "fax_number": "614-237-1646"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "680 BUCKLES CT N STE 1A",
            "city": "COLUMBUS",
            "state": "OH",
            "postal_code": "432306928",
            "telephone_number": "614-986-0125",
            "fax_number": "614-237-1646"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MACKESSY",
        "first_name": "JAMES",
        "middle_name": "P",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-23",
        "last_updated": "2026-05-19",
        "certification_date": "2026-05-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "OH",
            "license": "35.060234",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0808451",
            "state": "OH"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JAMES",
            "last_name": "MACKESSY",
            "middle_name": "PATRICK",
            "credential": "MD",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Nathaniel Mack, MD
• Trevor Hayden Mack, CRNA
• Kaleigh Michelle Mackay, LSW
• Evan Mackenzie, LSW
• Mackenzie Lynn Mackenzie, CNP
• Lindsay Marie Mackey-Laudermilch, CNP
• Caleb G. Mackey, M.D.
• Holly Mackey, RN, BSN, OCN
• Jared Mackey
• Jonniya Mackey

• Family Medicine Physician in Columbus, OH
• Providers in Columbus, OH by specialty
• Family Medicine Physician in Ohio

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 19, 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.