Stacy Yun, PHD

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

License

PSY.0006500 Issued in CO

Practice address

795 Willow Rd BLDG 324
Menlo Park, CA 94025-2539

Phone

(650) 614-9825

NPI assigned

Aug 18, 2025

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other names 1

• Stacy Wonkyung Yun Other name

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

Specialty

Clinical Psychologist

Education

Other, 2023

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Philosophy

State licenses

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.

• Grounded Therapy, a Psychology Corp

  • Clinical Psychologist
  • Encinitas, CA
  • NPI 1043836505
  Medicare reassignment

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

{
    "created_epoch": "1755475200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783382400000",
    "number": "1205713831",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1450 OAK CREEK DR APT 406",
            "city": "PALO ALTO",
            "state": "CA",
            "postal_code": "943042027",
            "telephone_number": "213-222-7196"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "795 WILLOW RD BLDG 324",
            "city": "MENLO PARK",
            "state": "CA",
            "postal_code": "940252539",
            "telephone_number": "650-614-9825"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1990 N California Blvd Ste 800",
            "address_purpose": "LOCATION",
            "city": "Walnut Creek",
            "state": "CA",
            "postal_code": "945967261",
            "country_code": "US",
            "telephone_number": "858-208-0380",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "84 W Santa Clara St Ste 700",
            "address_purpose": "LOCATION",
            "city": "San Jose",
            "state": "CA",
            "postal_code": "951131809",
            "country_code": "US",
            "telephone_number": "858-208-0380",
            "fax_number": "833-643-0973",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "374 N Coast Highway 101",
            "address_purpose": "LOCATION",
            "city": "Encinitas",
            "state": "CA",
            "postal_code": "920242542",
            "country_code": "US",
            "telephone_number": "858-367-7274",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "YUN",
        "first_name": "STACY",
        "credential": "PHD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2025-08-18",
        "last_updated": "2026-07-07",
        "certification_date": "2026-07-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "CO",
            "license": "PSY.0006500",
            "primary": true
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "CA",
            "license": "PSY36191",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "STACY",
            "last_name": "YUN",
            "middle_name": "WONKYUNG",
            "credential": "PHD",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Harvey S Young, M.D.
• Justin C Young, M.D.
• Kieuyen G Yu
• Marissa Yu, PT, DPT
• Paul Taehyun Yun, MD
• Tanya Zaghi, DDS
• Julia Zaitsev, PT, DPT
• Gerardo Javier Zambrano, MD
• Milford Alan Zasslow, M.D.
• Dianna Lam Zeelig, O.D.

• Clinical Psychologist in Menlo Park, CA
• Providers in Menlo Park, 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 7, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.