Per Oskar Ilja Von Schewelov Wallen, MD

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

MD56168 Issued in IA

Practice address

1825 Logan Ave
Waterloo, IA 50703-1916

Phone

(319) 235-3924

NPI assigned

May 31, 2023

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 names 1

• Oskar Wallen Other name

Medicare fee-for-service enrollment

Enrolled in IA

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

Other, 2020

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Hospital & facility affiliations

• Allen Hospital Hospital, Waterloo, IA, CCN 160110

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Interoperability endpoints

• Direct secure messaging: pvonschewelovwallen971499@direct.unitypoint.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.

• St Luke'S Methodist Hospital

  • General Acute Care Hospital
  • Cedar Rapids, IA
  • NPI 1083708226
  NPD
• Iowa Physicians Clinic Medical Foundation

  • General Practice Physician
  • West Des Moines, IA
  • NPI 1366425274

  Family Medicine

  NPD (past)

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

• Allen Memorial Hospital Corporation

  • General Acute Care Hospital
  • Waterloo, IA
  • NPI 1336231091

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1685491200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787529600000",
    "number": "1740973114",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1825 LOGAN AVE",
            "city": "WATERLOO",
            "state": "IA",
            "postal_code": "507031916",
            "telephone_number": "319-235-3924"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1825 LOGAN AVE",
            "city": "WATERLOO",
            "state": "IA",
            "postal_code": "507031916",
            "telephone_number": "319-235-3924"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "VON SCHEWELOV WALLEN",
        "first_name": "PER OSKAR ILJA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-05-31",
        "last_updated": "2026-08-24",
        "certification_date": "2026-08-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "IA",
            "license": "MD56168",
            "primary": true
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "IA",
            "license": "R-12713",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "OSKAR",
            "last_name": "WALLEN",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

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• All providers in Waterloo, IA
• Hospitalist Physician in Iowa

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 24, 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.