Individual provider Active NPI

Ellen Ann Leng, M.D

  • Emergency Medicine Physician
  • Sun City, AZ
National Provider Identifier
1902855497
Registry record updated Aug 14, 2018
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
A49694 Issued in CA
Practice address
10401 West Thunderbird Blvd.
Sun City, AZ 85351
Phone
(623) 977-7211
NPI assigned
May 10, 2006
Last updated
Aug 14, 2018By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 14, 2018

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 A49694 CA Primary

Addresses

Primary practice location

10401 West Thunderbird Blvd.
Sun City, AZ 85351

Mailing address

2100 Powell Street Ste 920
Emeryville, CA 94608-1803
Phone (510) 350-2600

Other identifiers 1

IdentifierTypeStateIssuer
112972MedicaidAZ

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
I20080611000875 CA Practitioner - Emergency Medicine 9032122452 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
University of Texas Medical School at San Antonio, 1990
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Medamerica Physician Solutions PCGroup PAC ID 8729221809, 28 clinicians
Cep America - Auc PCGroup PAC ID 9537481692, 26 clinicians
Cep America - CaliforniaGroup PAC ID 6103739131, 1,278 clinicians

Practice addresses (Care Compare)

112 La Casa Via
Suite 135
Walnut Creek, CA 94598-3023
Phone (925) 471-4291

1601 Ygnacio Valley Rd
Walnut Creek, CA 94598-3122
Phone (925) 939-3000

240 La Casa Via
Suite 200
Walnut Creek, CA 94598-4866
Phone (925) 945-6644

3901 Lone Tree Way
Antioch, CA 94509-6200
Phone (925) 779-7200

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of tissue222
Removal of skin lesions1-10
Skin biopsy1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A49694CAMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Cep America - California Emergency Medicine Current Accepting new patients
Cep America - Auc PC CurrentSince Mar 1, 2020 Accepting new patients
Medamerica Physician Solutions PC Emergency Medicine CurrentSince Aug 19, 2025 Accepting new patients
Cep America - Auc PC CurrentSince Mar 1, 2020 Accepting new patients
Cep America-California Emergency Medicine CurrentSince Jun 15, 1994 Accepting new patients
Cep America - California Emergency Medicine CurrentSince Jun 15, 1994 Accepting new patients
Brockton Podiatry Group a Prof Corp PastSince Feb 9, 2009 Accepting new patients
Cep America - Auc PC Emergency Medicine Past Accepting new patients
Sutter East Bay Medical Foundation Emergency Medicine Past Accepting new patients
California Emergency Physician Medical Group Past Accepting new patients

Locations

10401 W Thunderbird Blvd
Sun City, AZ 85351
Phone (623) 815-7690

14502 W Meeker Blvd
Sun City West, AZ 85375
Phone (623) 214-4000

3901 Lone Tree Way
Antioch, CA 94509
Phone (925) 779-7200

2540 East St
Concord, CA 94520
Phone (925) 674-2228

2100 Powell St
Ste 400
Emeryville, CA 94608
Phone (510) 350-2638

2100 Powell St
Ste 920
Emeryville, CA 94608
Phone (510) 350-2698

1650 Creekside Dr
Folsom, CA 95630
Phone (916) 983-7400

26732 Crown Valley Pkwy
Ste 585
Mission Viejo, CA 92691
Phone (949) 645-3333

1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 350-2663

16 E Fern Ave
Ste B
Redlands, CA 92373
Phone (909) 435-4852

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

112 La Casa Via
Ste 135
Walnut Creek, CA 94598
Phone (925) 378-4040

1601 Ygnacio Valley Rd
Walnut Creek, CA 94598
Phone (925) 295-1545

240 La Casa Via
Ste 200
Walnut Creek, CA 94598
Phone (925) 280-0800

Interoperability endpoints

  • Direct secure messaging: eleng8661@ehr.johnmuirhealth.com
  • Direct secure messaging: ellen.leng.1@20515.direct.athenahealth.com

Organizations & group practices 10

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 2

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": "1147219200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1534204800000",
    "number": "1902855497",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2100 POWELL STREET STE 920",
            "city": "EMERYVILLE",
            "state": "CA",
            "postal_code": "946081803",
            "telephone_number": "510-350-2600"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10401 WEST THUNDERBIRD BLVD.",
            "city": "SUN CITY",
            "state": "AZ",
            "postal_code": "85351",
            "telephone_number": "623-977-7211"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LENG",
        "first_name": "ELLEN",
        "middle_name": "ANN",
        "credential": "M.D",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-10",
        "last_updated": "2018-08-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "A49694",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "112972",
            "state": "AZ"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Sun City, AZ

Sources for this page

Verify at the official NPI Registry.