Individual provider Active NPI

Alexander Sang-Hyun Lee, M.D

  • Emergency Medicine Physician
  • Apple Valley, CA
National Provider Identifier
1083658884
Registry record updated Feb 14, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
A77568 Issued in CA
Practice address
18300 Highway 18
Apple Valley, CA 92307
Phone
(760) 242-2311
NPI assigned
Jun 15, 2006
Last updated
Feb 14, 2023By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 14, 2023

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X A77568 CA Primary

Addresses

Primary practice location

18300 Highway 18
Apple Valley, CA 92307

Mailing address

2100 Powell Street
Ste 920
Emeryville, CA 94608-1803
Phone (510) 350-2777

Other practice location 1

2251 N Harbor Blvd
Fullerton, CA 92835-2601
Phone (714) 449-6230

Other practice location 2

2501 E Chapman Ave
Orange, CA 92869-3204
Phone (714) 628-3300

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address alee1373654@oc.providencedirect.org
FHIR URL https://memorialcare.org/fhir/api/FHIR/R4/ Health Information Exchange (HIE) MemorialCare Medical Foundation

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
I20031208001089 CA Practitioner - Emergency Medicine 1951207323 Reassigns benefits to 8 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Virginia Commonwealth University, School of Medicine, 1996
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Memorialcare Medical FoundationGroup PAC ID 8729277314, 555 clinicians
San Dimas Emergency Medical Associates Inc.Group PAC ID 0648334235, 10 clinicians
Ignite Emergency Physicians a Medical CorporationGroup PAC ID 2365988326, 46 clinicians

Practice addresses (Care Compare)

11420 Warner Ave
Fountain Valley, CA 92708-2529
Phone (714) 549-1300

1350 W Covina Blvd
San Dimas, CA 91773-3245
Phone (909) 599-6811

5000 San Bernardino St
Montclair, CA 91763-2326
Phone (909) 625-5411

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Cep America - California Emergency Medicine Current Accepting new patients
Providence Medical Foundation CurrentSince Mar 1, 2016 Accepting new patients
Memorialcare Medical Foundation CurrentSince Mar 1, 2023 Accepting new patients
Providence Medical Foundation Current Accepting new patients
Montclair Emergency Medical Associates Emergency Medicine CurrentSince Aug 1, 2023 Accepting new patients
Cep America - California Emergency Medicine CurrentSince Nov 1, 2003 Accepting new patients
Ignite Emergency Physicians a Medical Corporation CurrentSince Jul 1, 2025 Accepting new patients
Orange County Emergency Medical Associates, Inc. Emergency Medicine CurrentSince Jun 15, 2025 Accepting new patients
Cep America - California Emergency Medicine CurrentSince Jan 1, 2016 Accepting new patients
Cep America-California Emergency Medicine CurrentSince Nov 1, 2003 Accepting new patients
Providence Medical Foundation CurrentSince Mar 1, 2016 Accepting new patients
San Dimas Emergency Medical Associates Inc. Emergency Medicine CurrentSince Jun 1, 2019 Accepting new patients
Bristol Park Medical Group, Inc Past Accepting new patients
Virginia Emergency Physicians LLP Emergency Medicine Past Accepting new patients
Dignity Health Past Accepting new patients
Virginia Emergency Physicians LLP Emergency Medicine Past Accepting new patients
Steven Remsen, MD PA Emergency Medicine Past Accepting new patients
Columbia Healthcare of Central Virginia Inc PastSince Apr 1, 2019 Accepting new patients
Virginia Emergency Physicians LLP Emergency Medicine Past Accepting new patients
Virginia Emergency Physicians LLP Emergency Medicine Past Accepting new patients

Locations

18300 US Highway 18
Apple Valley, CA 92307
Phone (760) 424-2311

19333 Bear Valley Rd
Ste 106
Apple Valley, CA 92308
Phone (760) 240-5505

5451 Walnut Ave
Chino, CA 91710
Phone (909) 464-8600

722 Baker St
Costa Mesa, CA 92626
Phone (714) 557-6300

11420 Warner Ave
Fountain Vly, CA 92708
Phone (714) 549-1300

17360 Brookhurst St
Fountain Vly, CA 92708
Phone (657) 241-3592

100 E Valencia Mesa Dr
Ste 105
Fullerton, CA 92835
Phone (714) 446-5200

1950 Sunny Crest Dr
Ste 2900
Fullerton, CA 92835

12601 Garden Grove Blvd
Garden Grove, CA 92843
Phone (714) 537-5160

9122 Adams Ave
Huntington Beach, CA 92646
Phone (714) 378-0900

7901 Walker St
La Palma, CA 90623
Phone (562) 424-2900

2110 N Bellflower Blvd
Long Beach, CA 90815
Phone (562) 346-2222

1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 900-3125

5000 San Bernardino St
Montclair, CA 91763
Phone (909) 625-4111

27300 Iris Ave
Moreno Valley, CA 92555
Phone (909) 243-0811

2501 E Chapman Ave
Orange, CA 92869
Phone (714) 628-3300

1801 W Olympic Blvd
#2611
Pasadena, CA 91199

4445 Magnolia Ave
Riverside, CA 92501
Phone (800) 498-7156

1350 W Covina Blvd
San Dimas, CA 91773
Phone (909) 394-2745

31001 Rancho Viejo Rd
Ste 200
San Juan Capistrano, CA 92675
Phone (949) 661-9600

1165 Montgomery Dr
#1112
Santa Rosa, CA 95405
Phone (707) 546-3210

500 Doyle Park Dr
Ste 100
Santa Rosa, CA 95405
Phone (714) 449-4842

12550 Hesperia Rd
Ste 100
Victorville, CA 92395
Phone (760) 381-7703

16850 Bear Valley Rd
Victorville, CA 92395

15464 Goldenwest St
Westminster, CA 92683
Phone (714) 891-9008

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: alee1373654@oc.providencedirect.org
  • Direct secure messaging: alee785407@direct.memorialcare.org

Organizations & group practices 21

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.

View all 21

Hospital & facility affiliations 4

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": "1150329600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1676332800000",
    "number": "1083658884",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2100 POWELL STREET",
            "address_2": "STE 920",
            "city": "EMERYVILLE",
            "state": "CA",
            "postal_code": "946081803",
            "telephone_number": "510-350-2777"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "18300 HIGHWAY 18",
            "city": "APPLE VALLEY",
            "state": "CA",
            "postal_code": "92307",
            "telephone_number": "760-242-2311"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2251 N Harbor Blvd",
            "address_purpose": "LOCATION",
            "city": "Fullerton",
            "state": "CA",
            "postal_code": "928352601",
            "country_code": "US",
            "telephone_number": "714-449-6230",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2501 E Chapman Ave",
            "address_purpose": "LOCATION",
            "city": "Orange",
            "state": "CA",
            "postal_code": "928693204",
            "country_code": "US",
            "telephone_number": "714-628-3300",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LEE",
        "first_name": "ALEXANDER",
        "middle_name": "SANG-HYUN",
        "credential": "M.D",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-15",
        "last_updated": "2023-02-14",
        "certification_date": "2023-02-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A77568",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "alee1373654@oc.providencedirect.org",
            "affiliation": "N",
            "address_1": "2251 N Harbor Blvd",
            "city": "Fullerton",
            "state": "CA",
            "country_code": "US",
            "postal_code": "928352601",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://memorialcare.org/fhir/api/FHIR/R4/",
            "affiliation": "Y",
            "endpointDescription": "MemorialCare FHIR Endpoint",
            "affiliationName": "MemorialCare Medical Foundation",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "FHIR",
            "address_1": "17360 Brookhurst St",
            "city": "Fountain Valley",
            "state": "CA",
            "country_code": "US",
            "postal_code": "927083720",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Apple Valley, CA

Sources for this page

Verify at the official NPI Registry.