Mohamad Omar Zakaria Diab, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

80333 Issued in AZ

Practice address

5700 E Highway 90
Sierra Vista, AZ 85635-9110

Phone

(520) 263-3190

NPI assigned

Jul 6, 2023

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1688601600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783987200000",
    "number": "1861170177",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6835 E CAMELBACK RD UNIT 9015",
            "city": "SCOTTSDALE",
            "state": "AZ",
            "postal_code": "852513160",
            "telephone_number": "520-286-0930"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5700 E HIGHWAY 90",
            "city": "SIERRA VISTA",
            "state": "AZ",
            "postal_code": "856359110",
            "telephone_number": "520-263-3190"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DIAB",
        "first_name": "MOHAMAD OMAR",
        "middle_name": "ZAKARIA",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2023-07-06",
        "last_updated": "2026-07-14",
        "certification_date": "2026-07-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine",
            "state": "AZ",
            "license": "80333",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Internal Medicine Physician in Sierra Vista, AZ
• Providers in Sierra Vista, AZ by specialty
• Internal Medicine Physician in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 14, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.