John Arthur Ayvazian, PH.D.

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

License

PSY 17149 Issued in CA

Practice address

12520 Magnolia Blvd
# 300
North Hollywood, CA 91607-2336

Phone

(818) 388-4108

NPI assigned

May 20, 2006

Sex

Male

Sole proprietor

No

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

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Doctor of Philosophy

State licenses

Practice roles

Locations

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.

• Pro Psych Services Inc

  • Clinical Psychologist
  • Valley Village, CA
  • NPI 1043224959
  Medicare reassignment NPD
• Darrell Broaddus Psychological Services PC

  • Clinical Psychologist
  • Orangevale, CA
  • NPI 1215339650
  NPD (past)

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

{
    "created_epoch": "1148083200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1922052380",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12520 MAGNOLIA BLVD",
            "address_2": "# 300",
            "city": "NORTH HOLLYWOOD",
            "state": "CA",
            "postal_code": "916072336",
            "telephone_number": "818-388-4108"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "12520 MAGNOLIA BLVD",
            "address_2": "# 300",
            "city": "NORTH HOLLYWOOD",
            "state": "CA",
            "postal_code": "916072336",
            "telephone_number": "818-388-4108"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "AYVAZIAN",
        "first_name": "JOHN",
        "middle_name": "ARTHUR",
        "name_prefix": "Dr.",
        "credential": "PH.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-20",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "CA",
            "license": "PSY 17149",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Nancy Avendano, FNP
• Alla Avetisyan-Andranikyan, PHARMD
• Hasmik Avetisyan
• Chloriza Avila
• Sirvard Silvia Ayrapetyan
• Adrinee Azariance, PHARMD
• Rina Azaryan
• B & D Hospice Services
• B. Deirmenjian, DDS, Inc.
• B.I.G.Solutions, LLC

• Clinical Psychologist in North Hollywood, CA
• Providers in North Hollywood, CA by specialty
• Clinical Psychologist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.