Advanced Multispecialty Surgery Center, LLC
NPI 1023391141 · Ambulatory Surgical Clinic/Center · Los Angeles, CA
Enrolled with Medicare as Part B Supplier - Ambulatory Surgical Center · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Advanced Multispecialty Surgery Center, LLC is a Ambulatory Surgical Clinic/Center organization in Los Angeles, CA (NPI 1023391141).
Provider details
- NPI number
- 1023391141
- Entity type
- Organization
- Primary specialty
- Ambulatory Surgical Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Christopher Zahiri, Owner/Medical Director(310) 659-0989
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-09-25
- Last updated
- 2022-05-18
- Certified
- 2022-05-18
Frequently asked questions
- What is Advanced Multispecialty Surgery Center, LLC's NPI number?
- Advanced Multispecialty Surgery Center, LLC's National Provider Identifier (NPI) is 1023391141, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Advanced Multispecialty Surgery Center, LLC?
- Advanced Multispecialty Surgery Center, LLC is classified in the NPPES registry as Ambulatory Surgical Clinic/Center (Ambulatory Health Care Facilities).
- Where is Advanced Multispecialty Surgery Center, LLC located?
- Advanced Multispecialty Surgery Center, LLC's practice location on file with NPPES is 1015 Gayley Ave Ste 105, Los Angeles, CA 90024-3475.
- What is Advanced Multispecialty Surgery Center, LLC's phone number?
- The practice phone number listed in the NPPES registry for Advanced Multispecialty Surgery Center, LLC is (310) 289-7770.
- Does Advanced Multispecialty Surgery Center, LLC accept Medicare?
- Advanced Multispecialty Surgery Center, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Advanced Multispecialty Surgery Center, LLC?
- The authorized official listed on Advanced Multispecialty Surgery Center, LLC's NPPES record is Christopher Zahiri, Owner/Medical Director. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Advanced Multispecialty Surgery Center, LLC's NPI active?
- Yes — Advanced Multispecialty Surgery Center, LLC's NPI (1023391141) is active in the NPPES registry as of the last update on 2022-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.