Karen Langer Axten, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

267532 Issued in MA

Practice address

2500 NE Neff Rd
Bend, OR 97701-6015

Phone

(541) 706-5800

Fax

(541) 706-5911

NPI assigned

Apr 13, 2016

Sex

Female

Sole proprietor

Yes

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 HI, OR2 enrollments

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 2

Specialty

Hematology/OncologyAlso: Internal Medicine

Education

Tufts University School of Medicine, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

St Charles Health System IncGroup PAC ID 8729111513, 379 clinicians

Kauai Medical ClinicGroup PAC ID 5092628479, 147 clinicians

Pali Momi Medical CenterGroup PAC ID 6406746916, 90 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St Charles Medical Center - Bend Hospital, Bend, OR, CCN 380047
• Pali Momi Medical Center Hospital, Aiea, HI, CCN 120026
• Wilcox Memorial Hospital Hospital, Lihue, HI, CCN 120014

Merit-based Incentive Payment System (MIPS)

Final score

88.39 of 100Reported as group

Quality

79.9

Promoting interoperability

99

Improvement activities

40

Cost

82.23

Merit-based Incentive Payment System (MIPS)

Final score

83.72 of 100Reported as group

Quality

67.55

Promoting interoperability

100

Improvement activities

40

Cost

78.18

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: kaxten227962@secure.stcharleshealthcare.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. Charles Health System, Inc.

  • Family Medicine Physician
  • Bend, OR
  • NPI 1023331303
  Medicare reassignment Care Compare group NPD
• Kauai Medical Clinic

  • Multi-Specialty Clinic/Center
  • Lihue, HI
  • NPI 1376596643
  Medicare reassignment Care Compare group NPD
• Pali Momi Medical Center

  • Multi-Specialty Clinic/Center
  • Aiea, HI
  • NPI 1275588329
  Medicare reassignment Care Compare group NPD
• Straub Clinic & Hospital

  • Multi-Specialty Clinic/Center
  • Honolulu, HI
  • NPI 1457306508
  Medicare reassignment NPD
• St. Charles Health System, Inc.

  • Specialist
  • Bend, OR
  • NPI 1700697935
  NPD
• Kauai Medical Clinic

  • Durable Medical Equipment & Medical Supplies
  • Koloa, HI
  • NPI 1871611558
  NPD
• Pali Momi Medical Center

  • Community/Retail Pharmacy
  • Aiea, HI
  • NPI 1851364731
  NPD
• Straub Clinic & Hospital

  • Community/Retail Pharmacy
  • Honolulu, HI
  • NPI 1295443216
  NPD
• Kapiolani Medical Center for Women & Children

  • Children's Hospital
  • Honolulu, HI
  • NPI 1043263080
  NPD (past)

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

• Cascade Healthcare Community Inc

  • Sleep Disorder Diagnostic Clinic/Center
  • Bend, OR
  • NPI 1164675963

  Hospital

  Care Compare affiliation
• St. Charles Health System, Inc.

  • General Acute Care Hospital
  • Bend, OR
  • NPI 1982621447
  Care Compare affiliation
• Pali Momi Medical Center

  • General Acute Care Hospital
  • Aiea, HI
  • NPI 1013961408
  Care Compare affiliation
• Wilcox Memorial Hospital

  • Rural Acute Care Hospital
  • Lihue, HI
  • NPI 1225113442
  Care Compare affiliation

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

{
    "created_epoch": "1460505600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775520000000",
    "number": "1295199404",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "725 ALBANY ST",
            "address_2": "SHAPIRO 5 & 6 BOSTON MEDICAL CENTER PI",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021182526",
            "telephone_number": "617-414-5951"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2500 NE NEFF RD",
            "city": "BEND",
            "state": "OR",
            "postal_code": "977016015",
            "telephone_number": "541-706-5800",
            "fax_number": "541-706-5911"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "725 Albany St",
            "address_2": "Shapiro 5 & 6 Boston Medical Center PI",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021182526",
            "country_code": "US",
            "telephone_number": "617-414-5951",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "AXTEN",
        "first_name": "KAREN",
        "middle_name": "LANGER",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2016-04-13",
        "last_updated": "2026-04-07",
        "certification_date": "2026-04-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "267532",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "kaxten227962@secure.stcharleshealthcare.org",
            "affiliation": "N",
            "address_1": "2500 NE Neff Rd",
            "city": "Bend",
            "state": "OR",
            "country_code": "US",
            "postal_code": "977016015",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Lynnea Aeiline Avenetti, M.A.
• Patricia Lynnette Averre, MS, CADC
• Jarret Avery
• Jordan Avila
• Awbrey Dental Group PC
• Shawn D Axten, PT,CST-D
• Patrick Ayres, O.D.
• Amir Azarisamani, MD, DMD
• Michael Daniel Azevedo
• Gregg Darius Azin, MD

• Internal Medicine Physician in Bend, OR
• Providers in Bend, OR by specialty
• Internal Medicine Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 7, 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.