Aaron James Lassila

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

13002 Issued in MN

Practice address

200 1St St SW
Rochester, MN 55905-0001

Phone

(507) 284-2511

NPI assigned

Mar 5, 2025

Sex

Unspecified or another gender identity

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MN

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2025

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: alassila148011@ehrdirect.mayoclinicmsg.org

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.

• Mayo Clinic

  • Multi-Specialty Clinic/Center
  • Rochester, MN
  • NPI 1922074434
  Medicare reassignment NPD
• Mayo Clinic

  • Clinical Medical Laboratory
  • Rochester, MN
  • NPI 1083249577
  NPD
• Mayo Clinic

  • Infectious Disease Physician
  • Rochester, MN
  • NPI 1114343860
  NPD
• Mayo Clinic

  • Air Ambulance
  • Rochester, MN
  • NPI 1821326570
  NPD (past)

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

{
    "created_epoch": "1741132800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756944000000",
    "number": "1760280846",
    "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": "LASSILA",
        "first_name": "AARON",
        "middle_name": "JAMES",
        "sole_proprietor": "NO",
        "sex": "X",
        "enumeration_date": "2025-03-05",
        "last_updated": "2025-09-04",
        "certification_date": "2025-09-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "MN",
            "license": "13002",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "alassila148011@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": []
}

• Natalie Anne Laska
• Edward R Laskowski, M.D.
• Elizabeth Laskowski, OTD, OTR/L
• Nora Jean Laskowski, DPT, PT
• Julia Laskus, MD
• Kathleen Lilah Latcham, CRNA
• Omar Sami Latif, MD
• Yee Yeng Lau
• Krzysztof Laudanski, MD, PHD, MA
• Dennis A Laudon, M.D.

• Nurse Practitioner in Rochester, MN
• Providers in Rochester, MN by specialty
• Nurse Practitioner in Minnesota

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 4, 2025; 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.