Karen Holder, FNPC

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

RN036046 Issued in AZ

Practice address

2920 N 4TH St
Flagstaff, AZ 86004-1816

Phone

(928) 522-9400

NPI assigned

May 23, 2005

Last updated

Apr 23, 2026By 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 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in AZ

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

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

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.

• El Rio Santa Cruz Neighborhood Health Center, Inc

  dba El Rio Community Health Center

  • Federally Qualified Health Center (FQHC)
  • Tucson, AZ
  • NPI 1487602736
  Medicare reassignment
• North Country Healthcare, Inc.

  • Multi-Specialty Clinic/Center
  • Flagstaff, AZ
  • NPI 1073583472
  NPD
• North Country Healthcare, Inc.

  • Multi-Specialty Clinic/Center
  • Show Low, AZ
  • NPI 1073740098
  NPD
• North Country Healthcare, Inc.

  • Family Medicine Physician
  • Flagstaff, AZ
  • NPI 1619345675
  NPD
• North Country Healthcare, Inc.

  dba Flagstaff Pediatric Care

  • Pediatrics Physician
  • Flagstaff, AZ
  • NPI 1669911764
  NPD (past)
• North Country Healthcare, Inc.

  • Multi-Specialty Clinic/Center
  • Bullhead, AZ
  • NPI 1760798680
  NPD (past)

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

{
    "created_epoch": "1116806400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776902400000",
    "number": "1831192913",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 1231",
            "city": "TUCSON",
            "state": "AZ",
            "postal_code": "857021231",
            "telephone_number": "520-670-3909",
            "fax_number": "520-309-2560"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2920 N 4TH ST",
            "city": "FLAGSTAFF",
            "state": "AZ",
            "postal_code": "860041816",
            "telephone_number": "928-522-9400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HOLDER",
        "first_name": "KAREN",
        "credential": "FNPC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-05-23",
        "last_updated": "2026-04-23",
        "certification_date": "2026-04-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "AZ",
            "license": "RN036046",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "109109",
            "state": "AZ"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Kyle Hobson
• Susan R Hoelscher, RD
• Alyssa Hoelzli
• Susan Camille Hoffner, RN
• James Andrew Hogg, PH.D.
• Therese Ann Holguin, M.D.
• Mary Holiday, LPN
• Ashton Holliday, D.C
• Holly K Vigil Dba a Woman's Place
• Helen-Marie Holmgren, P.T.

• Family Nurse Practitioner in Flagstaff, AZ
• Providers in Flagstaff, AZ by specialty
• Family Nurse Practitioner in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 23, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.