Individual provider Active NPI

Karen M Don, MD

  • Internal Medicine Physician
  • Fountain Valley, CA
National Provider Identifier
1184655698
Registry record updated Feb 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
G78774 Issued in CA
Practice address
9900 Talbert Ave
Suite 302
Fountain Valley, CA 92708-5153
Phone
(714) 965-2500
Fax
(714) 965-2581
NPI assigned
Jul 5, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 21, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X G78774 CA Primary

Addresses

Primary practice location

9900 Talbert Ave
Suite 302
Fountain Valley, CA 92708-5153

Mailing address

PO Box 8039
Fountain Valley, CA 92728-8039
Phone (714) 965-2500

Other practice location 1

20981 Magnolia St
Huntington Beach, CA 92646-6338
Phone (714) 965-2500

Other practice location 2

18682 Beach Blvd Ste 150
Huntington Beach, CA 92648-2050
Phone (714) 965-2500

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
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

Enrollment IDStateProvider typePAC IDDetails
I20100814000108 CA Practitioner - Internal Medicine 7719900653 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
University of California, Geffen School of Medicine, 1992
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Edinger Medical Group IncGroup PAC ID 6204863269, 15 clinicians

Practice addresses (Care Compare)

9900 Talbert Ave
Fountain Valley, CA 92708-5153
Phone 71496525002551

Hospital & facility affiliations

  • Memorialcare Orange Coast Medical Center Hospital, Fountain Valley, CA, CCN 050678

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
G78774CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Edinger Medical Group, Inc. Internal Medicine CurrentSince Sep 1, 2000 Accepting new patients
Edinger Medical Group, Inc. Internal Medicine CurrentSince Sep 1, 2000 Accepting new patients
Orange Coast Memorial Medical Center Past Accepting new patients
Hoag Memorial Hospital Presbyterian Past Accepting new patients

Locations

9900 Talbert Ave
#302
Fountain Valley, CA 92708

9900 Talbert Ave
Ste 302
Fountain Valley, CA 92708
Phone (714) 965-2500

9900 Talbert Ave
Fountain Vly, CA 92708
Phone (714) 965-2500

18682 Beach Blvd
Ste 150
Huntington Beach, CA 92648
Phone (714) 965-2500

18682 Beach Blvd
#145155
Huntington Beach, CA 92648
Phone (714) 965-2500

18682 Beach Blvd
Ste 145155
Huntington Beach, CA 92648
Phone (714) 965-2500

20981 Magnolia St
Huntington Beach, CA 92646
Phone (714) 965-2500

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Organizations & group practices 4

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.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1152057600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771632000000",
    "number": "1184655698",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 8039",
            "city": "FOUNTAIN VALLEY",
            "state": "CA",
            "postal_code": "927288039",
            "telephone_number": "714-965-2500",
            "fax_number": "714-965-2581"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9900 TALBERT AVE",
            "address_2": "SUITE 302",
            "city": "FOUNTAIN VALLEY",
            "state": "CA",
            "postal_code": "927085153",
            "telephone_number": "714-965-2500",
            "fax_number": "714-965-2581"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "20981 Magnolia St",
            "address_purpose": "LOCATION",
            "city": "Huntington Beach",
            "state": "CA",
            "postal_code": "926466338",
            "country_code": "US",
            "telephone_number": "714-965-2500",
            "fax_number": "714-965-2593",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "18682 Beach Blvd Ste 150",
            "address_purpose": "LOCATION",
            "city": "Huntington Beach",
            "state": "CA",
            "postal_code": "926482050",
            "country_code": "US",
            "telephone_number": "714-965-2500",
            "fax_number": "714-965-2593",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DON",
        "first_name": "KAREN",
        "middle_name": "M",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-07-05",
        "last_updated": "2026-02-21",
        "certification_date": "2026-02-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G78774",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Fountain Valley, CA

Sources for this page

Verify at the official NPI Registry.