John Gregory Duffy, MD

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

A54948 Issued in CA

Practice address

1401 N. Tustin Avenue, Suite 130
Suite 165
Santa Ana, CA 92705

Phone

(714) 542-3008

Fax

(714) 542-3617

NPI assigned

Dec 28, 2006

Last updated

Mar 15, 2023By the provider in NPPES

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

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

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

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": "1167264000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1678838400000",
    "number": "1255497251",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1401 N. TUSTIN AVENUE, SUITE 130",
            "address_2": "SUITE 165",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "92705",
            "telephone_number": "714-542-3008",
            "fax_number": "714-542-3617"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1401 N. TUSTIN AVENUE, SUITE 130",
            "address_2": "SUITE 165",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "92705",
            "telephone_number": "714-542-3008",
            "fax_number": "714-542-3617"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUFFY",
        "first_name": "JOHN",
        "middle_name": "GREGORY",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-28",
        "last_updated": "2023-03-15",
        "certification_date": "2023-03-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CA",
            "license": "A54948",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAL LICENSE",
            "identifier": "A54948",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Ryan Due
• Ebrahim Duel, M.D.
• Edmar Alberto Duenas, PTA
• Alyssa Rene Duenez-Rocha
• Trenten Andrew Duff, CCAPP
• Andrew Ralph Dufort
• Matthew Duhadway
• Maja Dukic
• Josephine Dumalaog-Cruz, DDS
• Alaina Dumonceaux, PTA

• Psychiatry Physician in Santa Ana, CA
• Providers in Santa Ana, CA by specialty
• Psychiatry Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 15, 2023; 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.