NPIMap

Organization Active NPI

Arizona Surgical Specialists Center, LLC

Doing business as Arizona Surgical Specialists Center, LLC - Scottsdale

  • Ambulatory Surgical Clinic/Center
  • Scottsdale, AZ
National Provider Identifier
1285333914
Registry record updated May 20, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Ambulatory Surgical Clinic/CenterTaxonomy code 261QA1903X
Legal business name
ARIZONA SURGICAL SPECIALISTS CENTER, LLC
Doing business as
Arizona Surgical Specialists Center, LLC - Scottsdale
Practice address
17500 N Perimeter Dr Ste 200
Scottsdale, AZ 85255-7800
Phone
(623) 742-1577
Fax
(623) 691-9498
NPI assigned
Mar 2, 2023
Last updated
May 20, 2026By the provider in NPPES
Organization subpart
Yes
Parent organization
ARIZONA SURGICAL SPECIALISTS CENTER, LLCAs reported in NPPES

NPPES NPI Registry

Updated by the provider on May 20, 2026

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

Authorized official

Name
Steven Siwek, MDNPI 1932204435
Title
President
Phone
(623) 516-8252

Authorized official NPPES reports the official by name only. The link goes to the one practitioner with that name whose NPPES practice address or phone number is this organization’s.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Ambulatory Surgical Clinic/Center 261QA1903X NU Primary

Addresses

Primary practice location

17500 N Perimeter Dr Ste 200
Scottsdale, AZ 85255-7800

Mailing address

9401 W Thunderbird Rd Ste 180
Peoria, AZ 85381-4210
Phone (623) 516-8252

Other names 1

  • Arizona Surgical Specialists Center, LLC - Scottsdale Doing business as

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AZ

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20230329000188 AZ Part B Supplier - Ambulatory Surgical Center 1254379399 Practice locations: Scottsdale, AZ

Other NPIs with the same Medicare PAC ID 3

NPIs whose Medicare enrollments share a PECOS associate control ID (the same enrolled entity).

Care Compare: Ambulatory surgical center

Medicare Care Compare
Listed as
Arizona Surgical Specialists Center LLC Dba Arizona Surgical Specialists Center LLC ScottsdaleCCN 03C0001479
Medicare certification status
ActiveFrom the Provider of Services file

Laboratory certificates & supplier records

Derived by NPIMap

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

CLIA numberLaboratoryCertificateExpires
03D2145704Arizona Surgical Specialists Center LLC17500 N Perimeter Dr Ste 200, Scottsdale, AZ 85255Certificate of waiverMar 12, 2028

National Provider Directory

National Provider Directory
Tax ID family
Arizona Surgical Specialists Center LLC4 organizations share this tax ID, including this one
Part of
Arizona Surgical Specialists Center LLC

Other organizations with this tax ID 3

Organizations that report the same tax identification number in the National Provider Directory.

Member of 1

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

Locations

17500 N Perimeter Dr
Ste 2
Scottsdale, AZ 85255
Phone (623) 742-1577

17500 N Perimeter Dr
Ste 200
Scottsdale, AZ 85255
Phone (623) 742-1577

1984 E Baseline Rd
Ste 200
Tempe, AZ 85283

Ownership & related parties

Parent organization (reported in NPPES) 1

This organization reports itself as a subpart in NPPES; the parent’s legal name matches this organization in the same state.

Practitioners & affiliated clinicians

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.

NPI Registry JSON

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

{
    "created_epoch": "1677715200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1779235200000",
    "number": "1285333914",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9401 W THUNDERBIRD RD STE 180",
            "city": "PEORIA",
            "state": "AZ",
            "postal_code": "853814210",
            "telephone_number": "623-516-8252",
            "fax_number": "623-516-8253"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "17500 N PERIMETER DR STE 200",
            "city": "SCOTTSDALE",
            "state": "AZ",
            "postal_code": "852557800",
            "telephone_number": "623-742-1577",
            "fax_number": "623-691-9498"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "ARIZONA SURGICAL SPECIALISTS CENTER, LLC",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "ARIZONA SURGICAL SPECIALISTS CENTER, LLC",
        "enumeration_date": "2023-03-02",
        "last_updated": "2026-05-20",
        "certification_date": "2026-05-20",
        "status": "A",
        "authorized_official_last_name": "SIWEK",
        "authorized_official_first_name": "STEVEN",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "623-516-8252",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "261QA1903X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Ambulatory Surgical",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Arizona Surgical Specialists Center, LLC - Scottsdale",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "Arizona Surgical Specialists Center, LLC - Scottsdale",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Scottsdale, AZ

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 20, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • 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.