Individual provider Active NPI

Ambreen Rahman, D.O.

  • Emergency Medicine Physician
  • Antioch, CA
National Provider Identifier
1750693545
Registry record updated Feb 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
20A13695 Issued in CA
Practice address
4053 Lone Tree Way
Antioch, CA 94531-6210
Phone
(510) 247-6436
Fax
(510) 506-7728
NPI assigned
Jul 8, 2010
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 13, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X U1360 TX
Emergency Medicine Physician 207P00000X 20A13695 CA Primary

Addresses

Primary practice location

4053 Lone Tree Way
Antioch, CA 94531-6210

Mailing address

325 Distel Cir
Los Altos, CA 94022-1408
Phone (510) 247-6436

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, TX2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20150120001466 CA Practitioner - Emergency Medicine 6204150378 Reassigns benefits to 1 organization
I20240917000077 TX Practitioner - Emergency Medicine 6204150378 Reassigns benefits to 1 organization

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
20A13695CAMDEmergency Medicine Physician
U1360TXMDEmergency Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Questcare Medical Services PLLC Emergency Medicine CurrentSince Jun 1, 2024 Accepting new patients
Cep America - California Emergency Medicine Current Accepting new patients
Cep America - California Emergency Medicine CurrentSince Jan 1, 2015 Accepting new patients
Questcare Medical Services, PLLC Emergency Medicine CurrentSince Jun 1, 2024 Accepting new patients
Questcare Medical Services, PLLC Emergency Medicine Current Accepting new patients
Cep America-California Emergency Medicine CurrentSince Jan 1, 2015 Accepting new patients

Locations

500 W Hospital Rd
French Camp, CA 95231
Phone (209) 468-6000

1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 851-7423

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

7777 Forest Ln
Dallas, TX 75230
Phone (972) 566-7283

3901 W 15th St
Plano, TX 75075
Phone (972) 519-1115

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: arahman333764@hisp.ehr.sutterhealth.org
  • Direct secure messaging: ambreen.rahman.1@18822.direct.athenahealth.com

Organizations & group practices 6

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.

NPI Registry JSON

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

{
    "created_epoch": "1278547200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770940800000",
    "number": "1750693545",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "325 DISTEL CIR",
            "city": "LOS ALTOS",
            "state": "CA",
            "postal_code": "940221408",
            "telephone_number": "510-247-6436",
            "fax_number": "510-506-7728"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4053 LONE TREE WAY",
            "city": "ANTIOCH",
            "state": "CA",
            "postal_code": "945316210",
            "telephone_number": "510-247-6436",
            "fax_number": "510-506-7728"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RAHMAN",
        "first_name": "AMBREEN",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-07-08",
        "last_updated": "2026-02-13",
        "certification_date": "2026-02-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "TX",
            "license": "U1360",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "20A13695",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Antioch, CA

Sources for this page

Verify at the official NPI Registry.