Washington Outpatient Surgery Center

Primary specialty

Ambulatory Surgical Clinic/CenterTaxonomy code 261QA1903X

Legal business name

WASHINGTON OUTPATIENT SURGERY CENTER

Doing business as

Napa Valley Surgery Center

Practice address

3435 Valle Verde Dr Ste C
Napa, CA 94558-2408

Phone

(707) 266-6420

NPI assigned

Apr 11, 2017

Last updated

Dec 3, 2025By the provider in NPPES

Organization subpart

No

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

Authorized official

Name

Artrice Young

Title

Director of Billing

Phone

(510) 818-5198

Specialties & licenses 1

Addresses

Other names 1

• Napa Valley Surgery Center Doing business as

Practitioners 3

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Jeffrey Scott Stuart, M.D.

  • Anesthesiology Physician
  • Nashville, TN
  • NPI 1700801123
  NPD
• Sandeep Kunwar, M.D.

  • Neurological Surgery Physician
  • Fremont, CA
  • NPI 1508807462
  NPD (past)
• Arun Srivatsa, MD

  • Gastroenterology Physician
  • Fremont, CA
  • NPI 1477662039
  NPD (past)

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

{
    "created_epoch": "1491868800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1764720000000",
    "number": "1326571845",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 56296",
            "city": "HAYWARD",
            "state": "CA",
            "postal_code": "945456290",
            "telephone_number": "510-818-5167",
            "fax_number": "510-249-5695"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3435 VALLE VERDE DR STE C",
            "city": "NAPA",
            "state": "CA",
            "postal_code": "945582408",
            "telephone_number": "707-266-6420"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "WASHINGTON OUTPATIENT SURGERY CENTER",
        "organizational_subpart": "NO",
        "enumeration_date": "2017-04-11",
        "last_updated": "2025-12-03",
        "certification_date": "2025-12-03",
        "status": "A",
        "authorized_official_last_name": "YOUNG",
        "authorized_official_first_name": "ARTRICE",
        "authorized_official_title_or_position": "DIRECTOR OF BILLING",
        "authorized_official_telephone_number": "510-818-5198"
    },
    "taxonomies": [
        {
            "code": "261QA1903X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Ambulatory Surgical",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Napa Valley Surgery Center",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

• Katherine Warburton, D.O.
• Kiana Ware
• Erin Lee Warnick, PHD
• Jennifer L Warring, PSY.D.
• Deborah Warshauer
• Agrippina Wasonga
• Nader Fathi Wassef, MD
• Courtney Watts-Cole
• Karjhnai Watts
• Corinne Weaver, LCSW

• Ambulatory Surgical Clinic/Center in Napa, CA
• Providers in Napa, CA by specialty
• Ambulatory Surgical Clinic/Center in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 3, 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.