NPIMap

Individual provider Active NPI

Lewis D. Hahn, M.D.

  • Diagnostic Radiology Physician
  • Rochester, MN
National Provider Identifier
1023455854
Registry record updated Mar 17, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
77978 Issued in MN
Practice address
200 1St St SW
Rochester, MN 55905-0001
Phone
(507) 284-2511
NPI assigned
Jun 3, 2013
Last updated
Mar 17, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 17, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X A131884 CA
Diagnostic Radiology Physician 2085R0202X 85094 WI
Diagnostic Radiology Physician 2085R0202X 77978 MN Primary

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 practice location 1

200 W Arbor Dr
San Diego, CA 92103-9000
Phone (800) 926-8273

Other practice location 2

800 West Avenue S
La Crosse, WI 54601-8806
Phone (608) 785-0940

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address lhahn2279900@ehrdirect.mayoclinicmsg.org

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MN, WI2 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
I20241202001282 MN Practitioner - Diagnostic Radiology 3779839543 Reassigns benefits to 4 organizations
I20250320001500 WI Practitioner - Diagnostic Radiology 3779839543 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Yale University School of Medicine, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mayo ClinicGroup PAC ID 6507778255, 4,829 clinicians

Practice addresses (Care Compare)

1025 Marsh St
Mankato, MN 56001-4752
Phone (507) 625-4031

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

200 1St SWST
Rochester, MN 55905-0001

800 W Ave S
La Crosse, WI 54601-8806
Phone (608) 785-0940

825 Mankato Ave
Winona, MN 55987-4866
Phone (507) 457-4149

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
90.77 of 100Reported as group
Quality
84.13
Promoting interoperability
100
Improvement activities
40
Cost
73.88

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as apm
Quality
96.51
Promoting interoperability
100
Improvement activities
40

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A131884CAMDDiagnostic Radiology Physician
85094WIMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mayo Clinic CurrentSince Oct 7, 2024 Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. CurrentSince Dec 16, 2025 Accepting new patients
Regents of the University of California Ucsd Department of Radiology Diagnostic Radiology CurrentSince Jun 12, 2019 Accepting new patients
Mayo Clinic CurrentSince Oct 7, 2024 Accepting new patients
Mayo Clinic Health System-Southwest Minnesota Region CurrentSince Mar 10, 2025 Accepting new patients
Mayo Clinic Health System-Northwest Wisconsin Region, Inc. CurrentSince Dec 16, 2025 Accepting new patients
Regents of the University of California Radiation Oncology CurrentSince Jun 12, 2019 Accepting new patients
Mayo Clinic Health System-Southwest Minnesota Region CurrentSince Mar 10, 2025 Accepting new patients
Mayo Clinic Health System-Southwest Wisconsin Region, Inc. CurrentSince Feb 28, 2025 Accepting new patients
Mayo Clinic Current Accepting new patients
Mayo Clinic Health System-Southwest Wisconsin Region, Inc. CurrentSince Feb 11, 2025 Accepting new patients

Locations

200 W Arbor Dr
San Diego, CA 92103
Phone (619) 543-5754

8929 University Center Ln
Ste 101
San Diego, CA 92122
Phone (858) 457-4227

1025 Marsh St
Mankato, MN 56001
Phone (507) 345-2623

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

825 Mankato Ave
Winona, MN 55987
Phone (507) 454-4925

800 West Ave S
La Crosse, WI 54601
Phone (608) 372-5951

800 E Blackhawk Ave
Prairie du Chien, WI 53821
Phone (608) 326-0808

Interoperability endpoints

  • Direct secure messaging: lhahn2279900@ehrdirect.mayoclinicmsg.org

Organizations & group practices 12

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 3

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": "1370217600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1742169600000",
    "number": "1023455854",
    "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": [
        {
            "address_1": "200 W Arbor Dr",
            "address_purpose": "LOCATION",
            "city": "San Diego",
            "state": "CA",
            "postal_code": "921039000",
            "country_code": "US",
            "telephone_number": "800-926-8273",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "800 West Avenue S",
            "address_purpose": "LOCATION",
            "city": "LA CROSSE",
            "state": "WI",
            "postal_code": "546018806",
            "country_code": "US",
            "telephone_number": "608-785-0940",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HAHN",
        "first_name": "LEWIS",
        "middle_name": "D.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-06-03",
        "last_updated": "2025-03-17",
        "certification_date": "2025-03-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "A131884",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "WI",
            "license": "85094",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "MN",
            "license": "77978",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "lhahn2279900@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": []
}

Other providers in Rochester, MN

Sources for this page

Verify at the official NPI Registry.