NPIMap

Individual provider Active NPI

Leena Youssefian, MD

  • Neurology Physician
  • Portland, OR
National Provider Identifier
1376963959
Registry record updated Aug 5, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurology PhysicianTaxonomy code 2084N0400X
License
MD211995 Issued in OR
Practice address
4101 SW Hillsdale Ave
Portland, OR 97239-1547
Phone
(570) 271-6144
NPI assigned
Apr 22, 2014
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 5, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Neurology Physician 2084N0400X MD61347684 WA
Neurology Physician 2084N0400X MD211995 OR Primary

Addresses

Primary practice location

4101 SW Hillsdale Ave
Portland, OR 97239-1547

Mailing address

PO Box 3777
Portland, OR 97208-3777
Phone (503) 413-3900

Other practice location 1

1040 NW 22nd Ave Ste 420
Portland, OR 97210-3062
Phone (503) 413-6166

Other names 1

  • Leena Youssefian-Halleran Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OR, PA2 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
I20220815003426 OR Practitioner - Neurology 1759713548 Reassigns benefits to 5 organizations
I20241112003041 PA Practitioner - Neurology 1759713548 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Neurology
Education
Other, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Geisinger ClinicGroup PAC ID 5395657001, 3,432 clinicians
St Clair Medical Services IncGroup PAC ID 4183511553, 203 clinicians
Phoenix Rehabilitation and Health Services IncGroup PAC ID 3476464298, shared by 2 NPIs, 2,775 clinicians

Practice addresses (Care Compare)

100 N Academy Ave
Danville, PA 17822-9800
Phone (570) 271-6211

1000 Bower Hill Rd
Pittsburgh, PA 15243-1873

2000 Westinghouse Dr
Cranberry Township, PA 16066-5238

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
94.62 of 100Reported as apm
Quality
77.21
Promoting interoperability
99.06
Improvement activities
40

Merit-based Incentive Payment System (MIPS)

Final score
92.83 of 100Reported as group
Quality
96.26
Promoting interoperability
100
Improvement activities
40
Cost
79.84

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Geisinger Clinic CurrentSince Nov 18, 2024 Accepting new patients
Legacy Emanuel Hospital & Health Center CurrentSince Nov 1, 2022 Accepting new patients
St Clair Medical Services Inc CurrentSince Dec 5, 2024 Accepting new patients
Legacy Good Samaritan Hospital and Medical Center CurrentSince Nov 1, 2022 Accepting new patients
Geisinger-HM Joint Venture, LLC Current Accepting new patients
Legacy Emanuel Hospital & Health Center CurrentSince Nov 1, 2022 Accepting new patients
Legacy Meridian Park Hospital CurrentSince Mar 1, 2023 Accepting new patients
Geisinger Clinic Neurology CurrentSince Nov 18, 2024 Accepting new patients
Legacy Good Samaritan Hospital and Medical Center CurrentSince Nov 1, 2022 Accepting new patients
St Clair Medical Services, Inc. Current Accepting new patients
Legacy Clinics LLC CurrentSince Aug 3, 2022 Accepting new patients
Geisinger-HM Joint Venture, LLC CurrentSince Nov 18, 2024 Accepting new patients
Legacy Salmon Creek Hospital Current Accepting new patients
Geisinger-HM Joint Venture LLC CurrentSince Nov 18, 2024 Accepting new patients
Geisinger Clinic Current Accepting new patients
St Clair Medical Services, Inc. Neurology CurrentSince Dec 5, 2024 Accepting new patients

Locations

1040 NW 22nd Ave
Ste 420
Portland, OR 97210
Phone (503) 229-7566

1015 NW 22nd Ave
Portland, OR 97210
Phone (503) 413-7582

1919 NW Lovejoy St
Portland, OR 97209
Phone (503) 415-5600

1130 NW 22nd Ave
Ste 400
Portland, OR 97210
Phone (503) 413-6555

1130 NW 22nd Ave
Ste 220
Portland, OR 97210
Phone (503) 413-4134

2801 N Gantenbein Ave
Portland, OR 97227
Phone (503) 413-2200

19300 SW 65th Ave
Tualatin, OR 97062
Phone (503) 692-1212

100 N Academy Ave
Danville, PA 17822

10 Choate Cir
Montoursville, PA 17754
Phone (570) 368-5566

255 Route 220 Hwy
Muncy, PA 17756
Phone (570) 308-2600

1000 Bower Hill Rd
Pittsburgh, PA 15243
Phone (412) 344-6600

2211 NE 139th St
Vancouver, WA 98686
Phone (360) 397-1985

Interoperability endpoints

  • Direct secure messaging: lyoussefian617224@direct.geisinger.edu

Organizations & group practices 16

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.

View all 16

Hospital & facility affiliations 59

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

View all 59

NPI Registry JSON

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

{
    "created_epoch": "1398124800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754352000000",
    "number": "1376963959",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 3777",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972083777",
            "telephone_number": "503-413-3900",
            "fax_number": "503-413-3710"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4101 SW HILLSDALE AVE",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972391547",
            "telephone_number": "570-271-6144"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1040 NW 22nd Ave Ste 420",
            "address_purpose": "LOCATION",
            "city": "Portland",
            "state": "OR",
            "postal_code": "972103062",
            "country_code": "US",
            "telephone_number": "503-413-6166",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "YOUSSEFIAN",
        "first_name": "LEENA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-04-22",
        "last_updated": "2025-08-05",
        "certification_date": "2025-08-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "WA",
            "license": "MD61347684",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "OR",
            "license": "MD211995",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "LEENA",
            "last_name": "YOUSSEFIAN-HALLERAN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Portland, OR

Sources for this page

Verify at the official NPI Registry.