John Yoonkeun Jun, M.D.

Primary specialty

Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X

License

35.128476 Issued in OH

Practice address

2100 W Central Ave FL 2
Toledo, OH 43606

Phone

(567) 420-1600

Fax

(567) 420-1633

NPI assigned

Apr 12, 2007

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

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

Endocrinology

Education

Other, 1998

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University of Toledo Physicians LLCGroup PAC ID 8729983416, 400 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• University of Toledo Medical Center Hospital, Toledo, OH, CCN 360048
• Promedica Toledo Hospital Hospital, Toledo, OH, CCN 360068
• Blanchard Valley Hospital Hospital, Findlay, OH, CCN 360095
• Fostoria Community Hospital Hospital, Fostoria, OH, CCN 361318
• Bay Park Community Hospital Hospital, Oregon, OH, CCN 360259

Merit-based Incentive Payment System (MIPS)

Final score

88.34 of 100Reported as group

Quality

69.17

Promoting interoperability

99

Improvement activities

40

Cost

75

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

Credentials

Doctor of Medicine

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.

• University of Toledo Physicians LLC

  • Internal Medicine Physician
  • Toledo, OH
  • NPI 1942296033
  Medicare reassignment Care Compare group NPD
• Lima Memorial Joint Operating Company

  • General Acute Care Hospital
  • Lima, OH
  • NPI 1336144732
  NPD (past)

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

• Bay Park Community Hospital

  • General Acute Care Hospital
  • Oregon, OH
  • NPI 1598765539
  Care Compare affiliation
• Blanchard Valley Regional Health Center

  • General Acute Care Hospital
  • Findlay, OH
  • NPI 1710920327
  Care Compare affiliation
• Fostoria Hospital Association

  • Critical Access Hospital
  • Fostoria, OH
  • NPI 1275533226
  Care Compare affiliation
• Medical University of Ohio at Toledo

  • General Acute Care Hospital
  • Toledo, OH
  • NPI 1811971302
  Care Compare affiliation
• The Toledo Hospital

  • General Acute Care Hospital
  • Toledo, OH
  • NPI 1407854771
  Care Compare affiliation
• Toledo Hospital

  • Ambulance
  • Toledo, OH
  • NPI 1427147339

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1176336000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770681600000",
    "number": "1487878559",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3000 ARLINGTON AVE STOP 1108",
            "city": "TOLEDO",
            "state": "OH",
            "postal_code": "436142595",
            "telephone_number": "419-383-5322"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2100 W CENTRAL AVE FL 2",
            "city": "TOLEDO",
            "state": "OH",
            "postal_code": "43606",
            "telephone_number": "567-420-1600",
            "fax_number": "567-420-1633"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3125 Transverse Dr",
            "address_purpose": "LOCATION",
            "city": "Toledo",
            "state": "OH",
            "postal_code": "436148008",
            "country_code": "US",
            "telephone_number": "419-383-3780",
            "fax_number": "419-383-2023",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3125 Transverse Dr",
            "address_purpose": "LOCATION",
            "city": "Toledo",
            "state": "OH",
            "postal_code": "436148008",
            "country_code": "US",
            "telephone_number": "419-383-3780",
            "fax_number": "419-383-2023",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "JUN",
        "first_name": "JOHN",
        "middle_name": "YOONKEUN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-04-12",
        "last_updated": "2026-02-10",
        "certification_date": "2026-02-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "PA",
            "license": "MT187224",
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "OH",
            "license": "35.128476",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0164737",
            "state": "OH"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Tracy Judy, CDCA/ QMHS
• Angel Juhasz
• Taunia Juhasz
• Rebecca Juliana, LISW
• Mouhammad Aghiad Jumaa, M.D.
• Muhammad Umer Junaid, MD
• Junction Family Pharmacy LLC
• Krysta Michelle Junkins, CNM
• Andrew Michael Jurgenson, PA-C
• Bridget Jurkiewicz, PA-C

• Endocrinology, Diabetes & Metabolism Physician in Toledo, OH
• Providers in Toledo, OH by specialty
• Endocrinology, Diabetes & Metabolism Physician in Ohio

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 10, 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.