Individual provider Active NPI

Omar Nabil Kallas, M.D.

  • Diagnostic Radiology Physician
  • Atlanta, GA
National Provider Identifier
1003201336
Registry record updated Jun 10, 2020
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
84802 Issued in GA
Practice address
1364 Clifton Road
Department of Radiology and Imaging Sciences
Atlanta, GA 30322
Phone
(404) 778-3900
NPI assigned
Apr 3, 2015
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 10, 2020

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X 84802 GA Primary

Addresses

Primary practice location

1364 Clifton Road
Department of Radiology and Imaging Sciences
Atlanta, GA 30322

Mailing address

1364 Clifton Rd NE
Department of Radiology and Imaging Sciences
Atlanta, GA 30322-1059

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
I20210803002696 CA Practitioner - Diagnostic Radiology 1850703760 Reassigns benefits to 20 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Other, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Usc Care Medical Group IncGroup PAC ID 0446157747, 1,378 clinicians
Arch Health Partners IncGroup PAC ID 9931239027, 141 clinicians
Beverly Radiology Medical Group IIIGroup PAC ID 3476466376, 327 clinicians
Desert Advanced Imaging Medical CenterGroup PAC ID 6406749613, 209 clinicians

Practice addresses (Care Compare)

1441 Eastlake Ave
Suite 2424
Los Angeles, CA 90089-0112
Phone (323) 442-2582

1500 San Pablo St
Los Angeles, CA 90033-5313
Phone (323) 442-8444

1516 San Pablo St
Los Angeles, CA 90033-5313
Phone (800) 872-2273

1520 San Pablo St
Los Angeles, CA 90033-5310
Phone (800) 872-2273

1520 San Pablo St 1St Floor N
Los Angeles, CA 90033-5310
Phone (800) 872-2273

15611 Pomerado Rd
Poway, CA 92064-2437
Phone (858) 675-3100

16130 Ventura Blvd
Suite 100
Encino, CA 91436-2517
Phone (818) 933-2020

18523 Corwin Rd
Suite J
Apple Valley, CA 92307-2300
Phone (760) 242-4444

2125 Citracado Pkwy
Escondido, CA 92029-4159

230 S Main St
Orange, CA 92868-3851

2708 E Willow St
Signal Hill, CA 90755-2217
Phone (562) 216-5120

31775 De Portola Rd
Temecula, CA 92592-2742
Phone (951) 238-6070

3300 W Coast Hwy
Suite B
Newport Beach, CA 92663-4025
Phone (949) 726-9100

35800 Bob Hope Dr
Suite 150a
Rancho Mirage, CA 92270-1740
Phone (760) 770-1920

3715 E S St
Long Beach, CA 90805-4521
Phone (562) 602-0700

3900 Sherman Dr
Riverside, CA 92503-4006

399 E 21St St
San Bernardino, CA 92404-4815
Phone (951) 682-1099

44105 15TH St W
Suite 100
Lancaster, CA 93534-4090
Phone (661) 726-6700

4500 Olivewood Ave
Suite 100200
Riverside, CA 92501-4116
Phone (951) 682-7580

490 Paulette PL
La Canada, CA 91011-2728
Phone (585) 218-8005

630 S Raymond Ave
Pasadena, CA 91105-3283

801 S Main St
Corona, CA 92882-3410

8283 Grove Ave
Suite 101
Rancho Cucamonga, CA 91730-3138
Phone (909) 560-0649

9191 Westminster
Ave 210
Garden Grove, CA 92844-2751
Phone (714) 784-1657

9191 Westminster Ave
Garden Grove, CA 92844-2751
Phone (714) 784-1657

Hospital & facility affiliations

  • Glendale Adventist Medical Center Hospital, Glendale, CA, CCN 050239
  • Palomar Health Downtown Campus Hospital, Escondido, CA, CCN 050115
  • Palomar Medical Center Poway Hospital, Poway, CA, CCN 050636
  • Adventist Health Simi Valley Hospital, Simi Valley, CA, CCN 050236
  • Adventist Health Bakersfield Hospital, Bakersfield, CA, CCN 050455

Merit-based Incentive Payment System (MIPS)

Final score
98.75 of 100Reported as group
Quality
100
Improvement activities
40
Cost
72.17

Merit-based Incentive Payment System (MIPS)

Final score
91.25 of 100Reported as group
Quality
75
Promoting interoperability
100
Improvement activities
40

Merit-based Incentive Payment System (MIPS)

Final score
90.08 of 100Reported as group
Quality
82.75
Improvement activities
40

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
84802GAMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Beverly Radiology Medical Group III Diagnostic Radiology CurrentSince Sep 15, 2024 Accepting new patients
Santa Rosa Imaging Medical Center Diagnostic Radiology CurrentSince Oct 15, 2025 Accepting new patients
Fresno Imaging Center Diagnostic Radiology CurrentSince Oct 15, 2025 Accepting new patients
Gainesville Radiology Group, PC Diagnostic Radiology CurrentSince Feb 1, 2025 Accepting new patients
San Diego Diagnostic Radiology Medical Group, Inc. Diagnostic Radiology CurrentSince Jul 26, 2021 Accepting new patients
Modesto Advanced Diagnostic Imaging Medical Center Diagnostic Radiology CurrentSince Oct 15, 2025 Accepting new patients
Norcal Imaging Diagnostic Radiology CurrentSince Oct 15, 2025 Accepting new patients
Arch Health Partners, Inc Diagnostic Radiology CurrentSince Apr 1, 2024 Accepting new patients
Diagnostic Radiological Imaging Diagnostic Radiology CurrentSince Oct 15, 2025 Accepting new patients
San Diego Diagnostic Radiology Medical Group Inc Diagnostic Radiology Current Accepting new patients
San Diego Diagnostic Radiology Medical Group, Inc. Diagnostic Radiology CurrentSince Jul 26, 2021 Accepting new patients
Beverly Radiology Medical Group III Diagnostic Radiology CurrentSince Sep 15, 2024 Accepting new patients
Keck Medicine of Usc Imaging Centers, LLC Diagnostic Radiology CurrentSince Oct 6, 2025 Accepting new patients
Stockton Diagnostic Imaging Diagnostic Radiology CurrentSince Oct 15, 2025 Accepting new patients
Desert Advanced Imaging Medical Center Diagnostic Radiology CurrentSince Sep 1, 2024 Accepting new patients
Kern Radiology Medical Group, Inc Diagnostic Radiology Current Accepting new patients
San Diego Diagnostic Radiology Medical Group, Inc. Current Accepting new patients
Beverly Radiology Medical Group III Diagnostic Radiology CurrentSince Sep 15, 2024 Accepting new patients
San Diego Imaging, LLC CurrentSince Mar 1, 2023 Accepting new patients
Valley Radiology Medical Associates, Inc. CurrentSince Oct 15, 2025 Accepting new patients
Arch Health Partners CurrentSince Apr 1, 2024 Accepting new patients
Usc Care Medical Group, Inc Diagnostic Radiology CurrentSince Apr 1, 2025 Accepting new patients
Beverly Radiology Medical Group III Diagnostic Radiology CurrentSince Sep 15, 2024 Accepting new patients
San Diego Imaging-Chula Vista LLC CurrentSince Jul 26, 2021 Accepting new patients
Usc Care Medical Group, Inc CurrentSince Apr 1, 2025 Accepting new patients
Kern Radiology Medical Group, Inc Diagnostic Radiology CurrentSince Oct 15, 2025 Accepting new patients
Radnet Medical Imaging-San Francisco Diagnostic Radiology CurrentSince Oct 15, 2025 Accepting new patients
San Diego Diagnostic Radiology Medical Group, Inc. Past Accepting new patients

Locations (25 of 49)

18523 Corwin Rd
Ste J
Apple Valley, CA 92307
Phone (760) 242-4444

2301 Bahamas Dr
Bakersfield, CA 93309

420 34th St
Bakersfield, CA 93301
Phone (661) 324-4647

9330 Stockdale Hwy
Ste 100
Bakersfield, CA 93311
Phone (661) 325-6800

3838 San Dimas St
Ste A120
Bakersfield, CA 93301
Phone (661) 328-9600

8750 Wilshire Blvd
Ste 100
Beverly Hills, CA 90211
Phone (310) 689-3100

2601 W Alameda Ave
Ste 101
Burbank, CA 91505
Phone (818) 843-7462

765 Medical Center Ct
Chula Vista, CA 91911
Phone (619) 397-6577

751 Medical Center Ct
Chula Vista, CA 91911
Phone (619) 482-3639

2300 Clayton Rd
Ste 160
Concord, CA 94520
Phone (925) 825-7777

801 S Main St
Ste 205
Corona, CA 92882
Phone (951) 351-1025

801 S Main St
Ste 101
Corona, CA 92882
Phone (951) 682-1099

16130 Ventura Blvd
Ste 100
Encino, CA 91436
Phone (818) 933-2020

2185 Citracado Pkwy
Escondido, CA 92029
Phone (442) 281-5000

2201 Walnut Ave
Ste 150
Fremont, CA 94538
Phone (510) 713-1234

6107 N Fresno St
Ste 101
Fresno, CA 93710
Phone (559) 435-4433

6191 N Thesta St
Fresno, CA 93710
Phone (559) 435-7200

9191 Westminster Ave
Ste 105
Garden Grove, CA 92844
Phone (714) 583-6314

250 S 12th Ave
Hanford, CA 93230
Phone (559) 295-2450

2679 Zoe Ave
Huntington Park, CA 90255
Phone (323) 584-3333

11360 Mountain View Ave
Ste C
Loma Linda, CA 92354
Phone (909) 478-3300

3320 N Los Coyotes Diagonal
Ste 120
Long Beach, CA 90808
Phone (562) 627-0903

3715 E South St
Long Beach, CA 90805
Phone (562) 602-0700

1520 San Pablo St
Los Angeles, CA 90033
Phone (323) 442-5849

1450 San Pablo St
Ste 3500
Los Angeles, CA 90033

Interoperability endpoints

  • Direct secure messaging: omar.kallas.p1@direct.arch.nextgenshare.com

Organizations & group practices 28

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 28

Hospital & facility affiliations 5

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": "1428019200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1591747200000",
    "number": "1003201336",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1364 CLIFTON RD NE",
            "address_2": "DEPARTMENT OF RADIOLOGY AND IMAGING SCIENCES",
            "city": "ATLANTA",
            "state": "GA",
            "postal_code": "303221059"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1364 CLIFTON ROAD",
            "address_2": "DEPARTMENT OF RADIOLOGY AND IMAGING SCIENCES",
            "city": "ATLANTA",
            "state": "GA",
            "postal_code": "30322",
            "telephone_number": "404-778-3900"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KALLAS",
        "first_name": "OMAR",
        "middle_name": "NABIL",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-04-03",
        "last_updated": "2020-06-10",
        "certification_date": "2020-06-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "GA",
            "license": "84802",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Atlanta, GA

Sources for this page

Verify at the official NPI Registry.