Catherine Kiley Monahan, NURSE PRACTITIONER

Primary specialty

Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X

License

12247 Issued in CA

Practice address

2101 Rosecrans Ave # 3230
El Segundo, CA 90245-4749

Phone

(323) 628-8671

NPI assigned

May 9, 2013

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

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: No

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Interoperability endpoints

• Direct secure messaging: cmonahan@landmarkhealth-direct.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.

• Upward Health of California, PC

  • General Practice Physician
  • San Mateo, CA
  • NPI 1407518780
  Medicare reassignment
• Center for Cholesterol Management

  • Endocrinology, Diabetes & Metabolism Physician
  • Los Angeles, CA
  • NPI 1649220328
  NPD (past)
• Concertocare Medical Group of California, P.C.

  • Internal Medicine Physician
  • Huntington Beach, CA
  • NPI 1922777259
  NPD (past)

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

{
    "created_epoch": "1368057600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759968000000",
    "number": "1962847400",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1950 SAWTELLE BLVD STE 150",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900257073",
            "telephone_number": "310-481-3939"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2101 ROSECRANS AVE # 3230",
            "city": "EL SEGUNDO",
            "state": "CA",
            "postal_code": "902454749",
            "telephone_number": "323-628-8671"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1311 N Mildred Rd",
            "address_purpose": "LOCATION",
            "city": "Cortez",
            "state": "CO",
            "postal_code": "813212231",
            "country_code": "US",
            "telephone_number": "970-565-6666",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1950 Sawtelle Blvd Ste 150",
            "address_purpose": "LOCATION",
            "city": "Los Angeles",
            "state": "CA",
            "postal_code": "900257073",
            "country_code": "US",
            "telephone_number": "310-481-3939",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MONAHAN",
        "first_name": "CATHERINE",
        "middle_name": "KILEY",
        "name_prefix": "Mrs.",
        "credential": "NURSE PRACTITIONER",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-05-09",
        "last_updated": "2025-10-09",
        "certification_date": "2025-10-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "CO",
            "license": "APN.1001196-NP",
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "CA",
            "license": "12247",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Zaineb Mokeddem
• Karen Molina
• Karla Molina
• Raul Molina
• Owen Molloy
• Marisol Moncada
• Agula Mondombo
• Alexandra Mondragon
• Angelica Mondragon
• Addison Mone

• Endocrinology, Diabetes & Metabolism Physician in El Segundo, CA
• Providers in El Segundo, CA by specialty
• Endocrinology, Diabetes & Metabolism Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 9, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.