Grethe June Mortenson, CRNP

Primary specialty

Neonatal Nurse PractitionerTaxonomy code 363LN0000X

License

SP029056 Issued in PA

Practice address

2074 S 6TH St
Klamath Falls, OR 97601

Phone

(541) 841-8110

Fax

(541) 885-5512

NPI assigned

Aug 7, 2012

Last updated

Aug 8, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 8

Addresses

Other identifiers 2

Other names 1

• Grethe June M Jennings Former name

Medicare fee-for-service enrollment

Enrolled in MN, WI, IL, LA, NC, VA, FL, MT, PA, ME, OR, SC12 enrollments

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 12

Specialty

Nurse Practitioner

Education

Other, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Openloop Healthcare Partners PCGroup PAC ID 2668871898, 47 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations (25 of 27)

Interoperability endpoints

• Direct secure messaging: creed21703@direct.chmca.org
• Direct secure messaging: gmortensonaprn337830@carlehiedirect.net

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.

• Openloop Healthcare Partners PC

  • General Practice Physician
  • Des Moines, IA
  • NPI 1245820661

  ME, MN, NC

  Medicare reassignment Care Compare group
• Saint Alphonsus Medical Center- Ontario Inc

  • Internal Medicine Physician
  • Ontario, OR
  • NPI 1093034159
  Medicare reassignment NPD
• Allina Health System

  dba Allina Health Annandale Clinic

  • Family Medicine Physician
  • Annandale, MN
  • NPI 1457657249
  Medicare reassignment NPD
• Carle Health Medical Group

  dba Carle Physician Group

  • Internal Medicine Physician
  • Urbana, IL
  • NPI 1154653947
  Medicare reassignment NPD
• Froedtert South, Inc.

  dba Froedtert South Medical Group

  • Family Medicine Physician
  • Kenosha, WI
  • NPI 1558305284
  Medicare reassignment NPD
• Lsu Health Sciences Center Shreveport Faculty Group Practice

  • Family Medicine Physician
  • Shreveport, LA
  • NPI 1013374222
  Medicare reassignment NPD
• Musc Community Physicians

  dba MUSC Community Physicians Specialty

  • Internal Medicine Physician
  • Bamberg, SC
  • NPI 1841878006
  Medicare reassignment NPD
• Ochsner Clinic LLC

  • General Practice Physician
  • New Orleans, LA
  • NPI 1538151428
  Medicare reassignment NPD
• The Milton S Hershey Medical Center Physicians Group

  • Orthopaedic Surgery Physician
  • Hershey, PA
  • NPI 1710951744
  Medicare reassignment NPD
• Unc Physicians Network LLC

  dba UNC Family Medicine at Pittsboro

  • Family Medicine Physician
  • Pittsboro, NC
  • NPI 1750704367
  Medicare reassignment NPD
• Psynergy Health Med PLLC

  • Primary Care Clinic/Center
  • Orlando, FL
  • NPI 1891513420

  SC

  Medicare reassignment
• Saint Alphonsus Medical Center- Ontario Inc

  • Internal Medicine Physician
  • Ontario, OR
  • NPI 1629397781
  NPD

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

{
    "created_epoch": "1344297600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754611200000",
    "number": "1205183415",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2074 S 6TH ST",
            "city": "KLAMATH FALLS",
            "state": "OR",
            "postal_code": "976013372",
            "telephone_number": "541-841-8110",
            "fax_number": "541-885-5512"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2074 S 6TH ST",
            "city": "KLAMATH FALLS",
            "state": "OR",
            "postal_code": "97601",
            "telephone_number": "541-841-8110",
            "fax_number": "541-885-5512"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "500 University Dr",
            "address_purpose": "LOCATION",
            "city": "Hershey",
            "state": "PA",
            "postal_code": "170332360",
            "country_code": "US",
            "telephone_number": "800-243-1455",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "405 Stageline Rd",
            "address_purpose": "LOCATION",
            "city": "Hudson",
            "state": "WI",
            "postal_code": "540167848",
            "country_code": "US",
            "telephone_number": "715-531-6000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "351 SW 9th St",
            "address_purpose": "LOCATION",
            "city": "Ontario",
            "state": "OR",
            "postal_code": "979142639",
            "country_code": "US",
            "telephone_number": "541-881-7184",
            "fax_number": "541-881-7016",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2925 Chicago Ave",
            "address_purpose": "LOCATION",
            "city": "Minneapolis",
            "state": "MN",
            "postal_code": "554071321",
            "country_code": "US",
            "telephone_number": "612-262-9000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "9555 76th St",
            "address_purpose": "LOCATION",
            "city": "Pleasant Prairie",
            "state": "WI",
            "postal_code": "531581984",
            "country_code": "US",
            "telephone_number": "262-577-8005",
            "fax_number": "262-577-8015",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4800 Friendship Ave",
            "address_purpose": "LOCATION",
            "city": "Pittsburgh",
            "state": "PA",
            "postal_code": "152241722",
            "country_code": "US",
            "telephone_number": "412-578-5858",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MORTENSON",
        "first_name": "GRETHE",
        "middle_name": "JUNE",
        "credential": "CRNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2012-08-07",
        "last_updated": "2025-08-08",
        "certification_date": "2025-08-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "WI",
            "license": "8585",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "PA",
            "license": "SP029043",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "OR",
            "license": "10015210",
            "primary": false
        },
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "MN",
            "license": "1916",
            "primary": false
        },
        {
            "code": "363LN0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Neonatal",
            "state": "MN",
            "license": "1916",
            "primary": false
        },
        {
            "code": "363LN0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Neonatal",
            "state": "OR",
            "license": "10015210",
            "primary": false
        },
        {
            "code": "363LN0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Neonatal",
            "state": "AZ",
            "license": "281915",
            "primary": false
        },
        {
            "code": "363LN0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Neonatal",
            "state": "PA",
            "license": "SP029056",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "500827451",
            "state": "OR"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1205183415",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "GRETHE",
            "last_name": "JENNINGS",
            "middle_name": "JUNE M",
            "credential": "CNP",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Barbara Morrison
• Stephanie Morrison
• Barbara Ann Morrow, BS QMHA
• Holly Morrow
• Bradley S Mortenson, D.M.D
• Lynn D. Mortenson, DDS
• Michelle Morton
• Rebecca Therese Morton, MD
• Ben Mosebach, LPC
• Patti L Mota, CADC-I

• Neonatal Nurse Practitioner in Klamath Falls, OR
• Providers in Klamath Falls, OR by specialty
• Neonatal Nurse Practitioner in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 8, 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.