Mercedes Dey Nikzad, MD

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

77087 Issued in AZ

Practice address

500 W Thomas Rd Ste 400
Phoenix, AZ 85013-4238

Phone

(602) 406-3874

Fax

(602) 406-2335

NPI assigned

Mar 26, 2019

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in AZ

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

Specialty

Colorectal Surgery (Proctology)

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Sjhmc Physician ServicesGroup PAC ID 4486646197, 645 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St Josephs Hospital and Medical Center Hospital, Phoenix, AZ, CCN 030024

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mnikzad992188@direct.hfhs.org

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.

• Sjhmc Physician Services

  • Multi-Specialty Clinic/Center
  • Phoenix, AZ
  • NPI 1326098005
  Medicare reassignment Care Compare group NPD
• St Josephs Pathology

  • Anatomic Pathology & Clinical Pathology Physician
  • Phoenix, AZ
  • NPI 1265407738
  NPD
• St. Joseph'S Hospital and Medical Center

  • Emergency Care Clinic/Center
  • Phoenix, AZ
  • NPI 1255382412
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Dignity Health

  • Emergency Care Clinic/Center
  • Litchfield Park, AZ
  • NPI 1265065445

  Hospital

  Care Compare affiliation
• Dignity Health

  • Emergency Care Clinic/Center
  • Glendale, AZ
  • NPI 1609408665

  Hospital

  Care Compare affiliation
• Dignity Health

  • General Acute Care Hospital
  • Phoenix, AZ
  • NPI 1982733655
  Care Compare affiliation
• Dignity Health

  • General Acute Care Hospital
  • Glendale, AZ
  • NPI 1992131734
  Care Compare affiliation

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

{
    "created_epoch": "1553558400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780876800000",
    "number": "1558822270",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 33269",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850673269",
            "telephone_number": "602-406-4786",
            "fax_number": "916-636-4358"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "500 W THOMAS RD STE 400",
            "city": "PHOENIX",
            "state": "AZ",
            "postal_code": "850134238",
            "telephone_number": "602-406-3874",
            "fax_number": "602-406-2335"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "625 N 6th St Ste 402",
            "address_purpose": "LOCATION",
            "city": "Phoenix",
            "state": "AZ",
            "postal_code": "850043067",
            "country_code": "US",
            "telephone_number": "602-406-8222",
            "fax_number": "602-604-4722",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NIKZAD",
        "first_name": "MERCEDES",
        "middle_name": "DEY",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-03-26",
        "last_updated": "2026-06-08",
        "certification_date": "2026-06-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "AZ",
            "license": "77087",
            "primary": true
        },
        {
            "code": "208C00000X",
            "taxonomy_group": "",
            "desc": "Colon & Rectal Surgery",
            "state": "AZ",
            "license": "77087",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Emma Nihill
• Yvette N. Nijimbere, MSW
• Nia Nikkhahmanesh, B.S.
• Niknav PLLC
• Armon John Nikravan, MD
• Elizabeth Rose Niles
• Anita Samone Nilson
• Nima Sana DPM
• Nimble Pharmacy Inc
• Nimbus Psychiatry PLLC

• Surgery Physician in Phoenix, AZ
• Providers in Phoenix, AZ by specialty
• Surgery Physician in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 8, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.