Ryuko Ishikawa, MD

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

A42754 Issued in CA

Practice address

138 E Hillsdale Blvd
San Mateo, CA 94403-2817

Phone

(415) 640-1455

NPI assigned

Sep 17, 2010

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other names 1

• Ryuko Hiramatsu Former name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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 and National Provider Directory roles.

• Ocean Psychological Services, Inc.

  • Behavior Analyst
  • Fremont, CA
  • NPI 1932865029
  NPD
• United Psychiatry, Inc.

  dba United Psychiatry

  • Psychiatry Physician
  • Mountain View, CA
  • NPI 1245943596
  NPD (past)

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

{
    "created_epoch": "1284681600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1705622400000",
    "number": "1053629634",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "570 BLOSSOM HILL RD",
            "city": "SAN JOSE",
            "state": "CA",
            "postal_code": "951233212",
            "telephone_number": "855-799-4647"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "138 E HILLSDALE BLVD",
            "city": "SAN MATEO",
            "state": "CA",
            "postal_code": "944032817",
            "telephone_number": "415-640-1455"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1055 W Henderson Ave",
            "address_purpose": "LOCATION",
            "city": "Porterville",
            "state": "CA",
            "postal_code": "932571490",
            "country_code": "US",
            "telephone_number": "559-788-1200",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ISHIKAWA",
        "first_name": "RYUKO",
        "name_prefix": "Ms.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-09-17",
        "last_updated": "2024-01-19",
        "certification_date": "2024-01-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "CA",
            "license": "A42754",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "RYUKO",
            "last_name": "HIRAMATSU",
            "credential": "MD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Internal Medicine Associates of San Mateo
• Intero Chiropractic a Hsieh Corporation D
• Introspective Therapy by Joanna Tozer, Licensed Clinical Social Worker, Inc.
• Isabell Beddow MD a Medical Corporation
• David M Isenman, MD
• Dennis Israelski
• Jay A Issler
• Masako Ito
• Izzo Marriage & Family Therapy PC
• Dale Jacknow

• Psychiatry Physician in San Mateo, CA
• Providers in San Mateo, CA by specialty
• Psychiatry Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 19, 2024; 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.