Nbasc LLC

Primary specialty

Ambulatory Surgical Clinic/CenterTaxonomy code 261QA1903X

Legal business name

NBASC LLC

Doing business as

Northbay Ambulatory Surgery Center

Practice address

1850 Sullivan Ave Ste 400
Daly City, CA 94015-2204

Phone

(408) 828-5973

Fax

(866) 284-9263

NPI assigned

Nov 8, 2021

Last updated

Mar 16, 2026By 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

Christopher A Viale, MDNPI 1871550863

Title

Medical Director

Phone

(415) 583-0470

Specialties & licenses 1

Addresses

Other names 1

• NORTHBAY AMBULATORY SURGERY CENTER Doing business as

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

NPI to CCN mapping 1

The Medicare certification numbers (CCNs) connected to NPI 1760147318. Details of each certification follow.

• CCN 55C0001187 Ambulatory surgical center · Active · Name & address match · Details

Ambulatory surgical center certification: CCN 55C0001187

Legal name

NORTHBAY AMBULATORY SURGERY CENTER

Certification status

Active

Provider type (POS)

Ambulatory surgical center

Participating since

Jun 24, 2025

Last certification

Jun 13, 2025

Facility address

1850 Sullivan Avenue, Suite 400
Daly City, CA 94015

Member of 1

Organizations this organization is a member of, according to the National Provider Directory.

• Ahmc Seton Medical Center LLC

  dba Seton Medical Center,Seton Medical Center Coastside

  • General Acute Care Hospital
  • Daly City, CA
  • NPI 1841809415

  Member Of

  NPD member

Practitioners 1

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.

• Christopher A Viale, MD

  • Anesthesiology Physician
  • Daly City, CA
  • NPI 1871550863
  NPD Authorized official

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

{
    "created_epoch": "1636329600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1773619200000",
    "number": "1760147318",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1850 SULLIVAN AVE STE 400",
            "city": "DALY CITY",
            "state": "CA",
            "postal_code": "940152204",
            "telephone_number": "415-583-0470",
            "fax_number": "650-228-0697"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1850 SULLIVAN AVE STE 400",
            "city": "DALY CITY",
            "state": "CA",
            "postal_code": "940152204",
            "telephone_number": "408-828-5973",
            "fax_number": "866-284-9263"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "NBASC LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2021-11-08",
        "last_updated": "2026-03-16",
        "certification_date": "2026-03-16",
        "status": "A",
        "authorized_official_last_name": "VIALE",
        "authorized_official_first_name": "CHRISTOPHER",
        "authorized_official_middle_name": "A",
        "authorized_official_title_or_position": "MEDICAL DIRECTOR",
        "authorized_official_telephone_number": "415-583-0470",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "261QA1903X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Ambulatory Surgical",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "NORTHBAY AMBULATORY SURGERY CENTER",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

• Elisa Frances Raquidan Nasol, MD
• National Vision Inc (America's Best Contacts & Eyeglasses)
• Rachita Neha Pallavi Navara, MD, FACC, FHRS
• Ana Alejandra Navarro Palacios, DDS, MS
• Joy Nazareno
• Neil D Mulcahy MD Inc
• Yekaterina Nenaydokh
• Lewis T. Nerenberg, MD
• Hannah Grace Neto
• Ari Seth Neulight

• Ambulatory Surgical Clinic/Center in Daly City, CA
• Providers in Daly City, 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 Mar 16, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; facility enrollments, owners and changes of ownership; Provider of Services certification data.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.