Individual provider Active NPI

Ammar Istwani, M.D.

  • Diagnostic Radiology Physician
  • Long Beach, CA
National Provider Identifier
1386683258
Registry record updated Aug 20, 2018
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
G80027 Issued in CA
Practice address
1045 Atlantic Ave
Suite 105
Long Beach, CA 90813
Phone
(562) 491-9167
Fax
(562) 491-7969
NPI assigned
Jun 6, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 20, 2018

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Specialist 174400000X G80027 CA
Diagnostic Radiology Physician 2085R0202X G80027 CA Primary

Addresses

Primary practice location

1045 Atlantic Ave
Suite 105
Long Beach, CA 90813

Mailing address

1045 Atlantic Ave
Suite 105
Long Beach, CA 90813-3408
Phone (562) 491-9167

Other identifiers 7

IdentifierTypeStateIssuer
HW8412OtherCAGROUP PTAN
P00479357OtherCARR MEDICARE
00G800270OtherCABCBS
HW8412AOtherCAPTAN/LEGACY PACIFIC HOSP
HW881OtherCAST MARYS PTAN
00G800270MedicaidCA
HW8412BOtherCAPTAN/LEGACY COMMUNITY HOSP

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
I20040720000871 CA Practitioner - Diagnostic Radiology 3072593268 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Ohio State University College of Medicine, 1992
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Dignity Health Medical FoundationGroup PAC ID 7810800661, 1,211 clinicians

Practice addresses (Care Compare)

107 Margaret LN
Grass Valley, CA 95945-5211
Phone (530) 247-9623

1380 Lead Hill Blvd
Suite 100
Roseville, CA 95661-2997
Phone (916) 535-2030

155 Glasson Way
Suite L 10
Grass Valley, CA 95945-5723
Phone (530) 274-6677

1700 Prairie City Rd
Folsom, CA 95630-9594
Phone (916) 351-4800

1730 Prairie City Rd
Suite 120
Folsom, CA 95630-9594
Phone (916) 351-4800

3000 Q St
Sacramento, CA 95816-7058
Phone (916) 560-0319

Hospital & facility affiliations

  • Sierra Nevada Memorial Hospital Hospital, Grass Valley, CA, CCN 050150
  • Dominican Hospital Hospital, Santa Cruz, CA, CCN 050242

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Dignity Health Medical Foundation Current Accepting new patients
Dignity Health Medical Foundation Current Accepting new patients
Dignity Health Medical Foundation Current Accepting new patients
Dignity Health Medical Foundation CurrentSince Dec 9, 2025 Accepting new patients
City of Hope Medical Foundation CurrentSince Apr 1, 2025 Accepting new patients
Golden State Imaging Associates Inc Diagnostic Radiology CurrentSince Nov 1, 2022 Accepting new patients
Renaissance Imaging Medical Associates, Inc. Diagnostic Radiology CurrentSince Jan 1, 2020 Accepting new patients
Twin Cities Community Hospital, Inc. Past Accepting new patients
Dignity Health Past Accepting new patients
Lompoc Valley Medical Center Past Accepting new patients
Dignity Health Past Accepting new patients
Templeton Imaging Medical Corporation Inc Diagnostic Radiology Past Accepting new patients
Dignity Health Past Accepting new patients
Dignity Community Care Past Accepting new patients
Dignity Health Medical Foundation Past Accepting new patients
Dignity Health Past Accepting new patients
Sierra Nevada Memorial-Miners Hospital Past Accepting new patients
Doctors Medical Center of Modesto, Inc. Past Accepting new patients
Catholic Healthcare West Past Accepting new patients

Locations

17100 Euclid St
Ste 4004
Fountain Vly, CA 92708
Phone (714) 966-7200

47111 Monroe St
#1112
Indio, CA 92201

1000 Fivepoint
Irvine, CA 92618
Phone (888) 333-4673

44105 15th St W
Ste 100
Lancaster, CA 93534
Phone (661) 726-6050

1720 Termino Ave
Long Beach, CA 90804
Phone (562) 494-0631

1050 Linden Ave
Long Beach, CA 90813
Phone (562) 491-9000

2400 E 4th St
National City, CA 91950
Phone (619) 470-4141

1601 Avocado Ave
Newport Beach, CA 92660
Phone (949) 763-2204

18460 Roscoe Blvd
Fl 2
Northridge, CA 91325
Phone (818) 885-5480

2510 Airpark Dr
Ste 301
Redding, CA 96001
Phone (530) 242-3500

1081 N China Lake Blvd
Ridgecrest, CA 93555
Phone (760) 446-0616

3865 Jackson St
Riverside, CA 92503
Phone (909) 688-2211

6939 Palm Ct
Riverside, CA 92506
Phone (760) 416-4832

1380 Lead Hill Blvd
Ste 100
Roseville, CA 95661
Phone (916) 535-2030

1380 Lead Hill Blvd
Ste 120
Roseville, CA 95661

3000 Q St
Sacramento, CA 95816
Phone (916) 733-5701

1595 Soquel Dr
Ste 400
Santa Cruz, CA 95065
Phone (831) 475-1111

501 Petaluma Ave
Sebastopol, CA 95472
Phone (707) 823-8511

209 Fair Oaks Ave
South Pasadena, CA 91030
Phone (626) 359-8111

1100 San Bernardino Rd
Ste 1100
Upland, CA 91786
Phone (909) 949-2242

3291 Loma Vista Rd
Ventura, CA 93003
Phone (805) 652-6000

16850 Bear Valley Rd
Victorville, CA 92395
Phone (760) 241-8222

1115 S Sunset Ave
West Covina, CA 91790
Phone (626) 814-2434

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Organizations & group practices 19

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.

View all 19

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": "1149552000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1534723200000",
    "number": "1386683258",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1045 ATLANTIC AVE",
            "address_2": "SUITE 105",
            "city": "LONG BEACH",
            "state": "CA",
            "postal_code": "908133408",
            "telephone_number": "562-491-9167",
            "fax_number": "562-491-7969"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1045 ATLANTIC AVE",
            "address_2": "SUITE 105",
            "city": "LONG BEACH",
            "state": "CA",
            "postal_code": "90813",
            "telephone_number": "562-491-9167",
            "fax_number": "562-491-7969"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ISTWANI",
        "first_name": "AMMAR",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-06",
        "last_updated": "2018-08-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "CA",
            "license": "G80027",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "G80027",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "GROUP PTAN",
            "identifier": "HW8412",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RR MEDICARE",
            "identifier": "P00479357",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "00G800270",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PTAN/LEGACY PACIFIC HOSP",
            "identifier": "HW8412A",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "ST MARYS PTAN",
            "identifier": "HW881",
            "state": "CA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G800270",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PTAN/LEGACY COMMUNITY HOSP",
            "identifier": "HW8412B",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Long Beach, CA

Sources for this page

Verify at the official NPI Registry.