Sunil Kumar Singh Gulaya, M.D

Primary specialty

Addiction Medicine (Psychiatry & Neurology) PhysicianTaxonomy code 2084A0401X

License

A37809 Issued in CA

Practice address

1654 E 4TH St
Suite # a
Santa Ana, CA 92701-8300

Phone

(714) 973-6333

Fax

(714) 973-2290

NPI assigned

Nov 13, 2006

Last updated

Oct 22, 2025By the provider in NPPES

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

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Families Together of Orange County

  • Clinic/Center
  • Tustin, CA
  • NPI 1194122457
  Medicare reassignment NPD
• Sunil Gulaya MD

  • Neurology Physician
  • Santa Ana, CA
  • NPI 1841042306
  NPD Authorized official
• Families Together of Orange County

  • Federally Qualified Health Center (FQHC)
  • Tustin, CA
  • NPI 1861253080
  NPD

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

{
    "created_epoch": "1163376000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761091200000",
    "number": "1477624211",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 544",
            "city": "BREA",
            "state": "CA",
            "postal_code": "928220544",
            "telephone_number": "714-672-9338",
            "fax_number": "714-255-1440"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1654 E 4TH ST",
            "address_2": "SUITE # A",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "927018300",
            "telephone_number": "714-973-6333",
            "fax_number": "714-973-2290"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9918 Katella Ave Ste A-C",
            "address_purpose": "LOCATION",
            "city": "Anaheim",
            "state": "CA",
            "postal_code": "928046465",
            "country_code": "US",
            "telephone_number": "714-644-9494",
            "fax_number": "714-644-9894",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "11180 Warner Ave Ste 353",
            "address_purpose": "LOCATION",
            "city": "Fountain Valley",
            "state": "CA",
            "postal_code": "927084098",
            "country_code": "US",
            "telephone_number": "714-968-6789",
            "fax_number": "714-202-2626",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "661 W 1st St Ste G",
            "address_purpose": "LOCATION",
            "city": "Tustin",
            "state": "CA",
            "postal_code": "927802939",
            "country_code": "US",
            "telephone_number": "714-665-9890",
            "fax_number": "714-665-9891",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GULAYA",
        "first_name": "SUNIL",
        "middle_name": "KUMAR SINGH",
        "credential": "M.D",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-11-13",
        "last_updated": "2025-10-22",
        "certification_date": "2025-10-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084A0401X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Addiction Medicine",
            "state": "CA",
            "license": "A37809",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sandra Guillen, PPS
• Lindsay Guin, LMFT
• Youssef Guindy
• Guirguis Dental Corporation
• Luis Guizar
• Chantal Ubando Gumpal, LVN
• Julie Gunderson
• Terry Gundlach, DDS
• David Edward Gunn, AMFT
• Abha S Gupta, M.D.

• Addiction Medicine (Psychiatry & Neurology) Physician in Santa Ana, CA
• Providers in Santa Ana, CA by specialty
• Addiction Medicine (Psychiatry & Neurology) Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 22, 2025; 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.