Ralph Watchi, MD

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

A48327 Issued in CA

Practice address

1300 N Vermont Ave
Suite 901
Los Angeles, CA 90027-6005

Phone

(323) 912-9221

Fax

(323) 912-9206

NPI assigned

Jul 4, 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

Other identifiers 4

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

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.

• Ralph Watchi, MD a Professional Corporation

  • Primary Care Clinic/Center
  • Los Angeles, CA
  • NPI 1568326718
  NPD Authorized official
• Cedars-Sinai Medical Center

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1639172372
  NPD (past)
• Cha Hollywood Medical Center, LP

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1922033547
  NPD (past)
• Childrens Hospital of Los Angeles

  • Children's Hospital
  • Los Angeles, CA
  • NPI 1124073366
  NPD (past)

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

{
    "created_epoch": "1151971200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765497600000",
    "number": "1003846189",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 29160",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900290160",
            "telephone_number": "323-912-9221",
            "fax_number": "323-912-9206"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1300 N VERMONT AVE",
            "address_2": "SUITE 901",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900276005",
            "telephone_number": "323-912-9221",
            "fax_number": "323-912-9206"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WATCHI",
        "first_name": "RALPH",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-04",
        "last_updated": "2025-12-12",
        "certification_date": "2025-12-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "CA",
            "license": "A48327",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00A483272",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "TAX IDENTIFICATION NUMBER",
            "identifier": "91-1827243",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAL STATE LICENSE#",
            "identifier": "A48327",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICAL ID NUMBER",
            "identifier": "1426829",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Reiko Watanabe, NP
• Sean Watanabe, OTR/L
• Tanya Watarastaporn, MD
• Kecia Fumi Watari Knoell, PHD
• Monika Ngongang Watat
• Tobin Watenmaker, MA
• Water PT Specialists Inc
• Matthew Waterbury, RADT - IN PROGRESS
• Marie Waterhouse, MD
• Rebecca Waterhouse, LCSW

• Pediatrics Physician in Los Angeles, CA
• Providers in Los Angeles, CA by specialty
• Pediatrics Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 12, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.