NPIMap

Individual provider Active NPI

Yun Kyoung Ryu Tiger, M.D

  • Hematology (Internal Medicine) Physician
  • Rochester, MN
National Provider Identifier
1578096269
Registry record updated Oct 24, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology (Internal Medicine) PhysicianTaxonomy code 207RH0000X
License
80620 Issued in MN
Practice address
200 1St St SW
Rochester, MN 55905-0001
Phone
(507) 284-2511
NPI assigned
Apr 10, 2017
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 24, 2025

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Hematology (Internal Medicine) Physician 207RH0000X 80620 MN Primary
Hematology & Oncology Physician 207RH0003X 80620 MN
Hematology & Oncology Physician 207RH0003X 306307 NY
Hematology & Oncology Physician 207RH0003X 25MA11969100 NJ

Addresses

Primary practice location

200 1St St SW
Rochester, MN 55905-0001

Mailing address

PO Box 860912
Minneapolis, MN 55486-0912
Phone (507) 284-2511

Other names 1

  • Claire Ryu Tiger Other name

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address ytiger2579090@ehrdirect.mayoclinicmsg.org

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NJ, MN2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20231122001924 NJ Practitioner - Hematology/Oncology 9638418643 Reassigns benefits to 1 organization
I20251105001801 MN Practitioner - Hematology 9638418643 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hematology/Oncology
Education
Columbia University College of Physicians and Surgeons, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Mayo ClinicGroup PAC ID 6507778255, 4,829 clinicians

Practice addresses (Care Compare)

125 Paterson St
New Brunswick, NJ 08901-1962

200 1St St SW
Rochester, MN 55905-0001
Phone (507) 284-2511

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
88.4 of 100Reported as group
Quality
70.64
Promoting interoperability
100
Improvement activities
40

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
80620MNMDHematology (Internal Medicine) Physician
25MA11969100NJMDHematology & Oncology Physician
306307NYMDHematology & Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mayo Clinic CurrentSince Sep 22, 2025 Accepting new patients
Rutgers Health-RWJ Scleroderma Program Current Accepting new patients
Rutgers Health-RWJ Scleroderma Program Current Accepting new patients
Rutgers Health-RWJ Scleroderma Program CurrentSince Aug 15, 2023 Accepting new patients
Mayo Clinic Current Accepting new patients
Mayo Clinic CurrentSince Sep 22, 2025 Accepting new patients
Rutgers Health-RWJ Scleroderma Program CurrentSince Aug 15, 2023 Accepting new patients
Rutgers Health-RWJ Primary Medicine Group Hematology Current Accepting new patients
Mayo Clinic Past Accepting new patients

Locations

200 1st St SW
Rochester, MN 55905
Phone (507) 266-4850

125 Paterson St
Ste 5100
New Brunswick, NJ 08901
Phone (732) 235-7060

125 Paterson St
Ste 6100
New Brunswick, NJ 08901
Phone (732) 235-6561

195 Little Albany St
New Brunswick, NJ 08901
Phone (732) 235-2465

Interoperability endpoints

  • Direct secure messaging: ytiger2579090@ehrdirect.mayoclinicmsg.org

Organizations & group practices 9

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 10

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": "1491782400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761264000000",
    "number": "1578096269",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 860912",
            "city": "MINNEAPOLIS",
            "state": "MN",
            "postal_code": "554860912",
            "telephone_number": "507-284-2511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 1ST ST SW",
            "city": "ROCHESTER",
            "state": "MN",
            "postal_code": "559050001",
            "telephone_number": "507-284-2511"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TIGER",
        "first_name": "YUN KYOUNG",
        "middle_name": "RYU",
        "name_prefix": "Dr.",
        "credential": "M.D",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-04-10",
        "last_updated": "2025-10-24",
        "certification_date": "2025-10-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology",
            "state": "MN",
            "license": "80620",
            "primary": true
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "MN",
            "license": "80620",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "NY",
            "license": "306307",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "NJ",
            "license": "25MA11969100",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ytiger2579090@ehrdirect.mayoclinicmsg.org",
            "affiliation": "N",
            "address_1": "200 1st St SW",
            "city": "Rochester",
            "state": "MN",
            "country_code": "US",
            "postal_code": "559050001",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "CLAIRE",
            "last_name": "TIGER",
            "middle_name": "RYU",
            "credential": "MD, PHD",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in Rochester, MN

Sources for this page

Verify at the official NPI Registry.