Individual provider Active NPI

Randa Serag, M.D.

  • Internal Medicine Physician
  • Lake Forest, CA
National Provider Identifier
1043403215
Registry record updated Sep 16, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A106929 Issued in CA
Practice address
27051 Towne Centre Dr Ste 280
Lake Forest, CA 92610-2819
Phone
(949) 652-7580
Fax
(833) 455-6567
NPI assigned
Aug 21, 2007
Last updated
Sep 16, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 16, 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 A106929 CA Primary

Addresses

Primary practice location

27051 Towne Centre Dr Ste 280
Lake Forest, CA 92610-2819

Mailing address

27051 Towne Centre Dr Ste 280
Lake Forest, CA 92610-2819
Phone (949) 652-7580

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
I20110502000080 CA Practitioner - Internal Medicine 7214112572 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Johns Hopkins University School of Medicine, 2007
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services

Practice addresses (Care Compare)

1 Hoag Dr
Newport Beach, CA 92663-4162

200 W Ctr St Promenade
Anaheim, CA 92805-3960

510 Superior Ave
Newport Beach, CA 92663-3663

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
The Regents of the University of California Internal Medicine CurrentSince Jan 16, 2011 Accepting new patients
The Regents of the University of California CurrentSince Jan 16, 2011 Accepting new patients
Rahma Medical PC Internal Medicine Current Accepting new patients
Hoag Clinic CurrentSince Mar 1, 2019 Accepting new patients
Hoag Hospital Past Accepting new patients

Locations

16300 Sand Canyon Ave
Ste 311
Irvine, CA 92618
Phone (949) 753-7475

File 55737
Los Angeles, CA 90074

510 Superior Ave
Ste 200B
Newport Beach, CA 92663
Phone (800) 400-4624

510 Superior Ave
Ste 290
Newport Beach, CA 92663
Phone (949) 764-4500

1031 Avenida Pico
Ste 204
San Clemente, CA 92673
Phone (949) 829-5533

2020 Santa Monica Blvd
Ste 210
Santa Monica, CA 90404
Phone (310) 458-2381

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/10944/brand/3/csg/1/fhir/r4
  • FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/

Organizations & group practices 5

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.

Hospital & facility affiliations 3

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": "1187654400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789516800000",
    "number": "1043403215",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "27051 TOWNE CENTRE DR STE 280",
            "city": "LAKE FOREST",
            "state": "CA",
            "postal_code": "926102819",
            "telephone_number": "949-652-7580",
            "fax_number": "833-455-6567"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "27051 TOWNE CENTRE DR STE 280",
            "city": "LAKE FOREST",
            "state": "CA",
            "postal_code": "926102819",
            "telephone_number": "949-652-7580",
            "fax_number": "833-455-6567"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SERAG",
        "first_name": "RANDA",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-08-21",
        "last_updated": "2026-09-16",
        "certification_date": "2026-09-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A106929",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Lake Forest, CA

Sources for this page

Verify at the official NPI Registry.