OrganizationActive
California Surgical Service
NPI 1538399365 · Surgery Physician · Los Gatos, CA
California Surgical Service is a Surgery Physician organization in Los Gatos, CA (NPI 1538399365).
Provider details
- NPI number
- 1538399365
- Entity type
- Organization
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Ekai Hsu, Owner(831) 298-9127
- License
- A103079 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(85/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
14981 National Ave Ste 4
Los Gatos, CA 95032-2600
Phone: (831) 298-9127
Street-level locationGet directions
Mailing address
Po Box 221461
Carmel, CA 93922-1461
Registry dates
- Enumerated
- 2009-07-14
- Last updated
- 2026-02-17
- Certified
- 2026-02-17
Frequently asked questions
- What is California Surgical Service's NPI number?
- California Surgical Service's National Provider Identifier (NPI) is 1538399365, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is California Surgical Service?
- California Surgical Service is classified in the NPPES registry as Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is California Surgical Service located?
- California Surgical Service's practice location on file with NPPES is 14981 National Ave Ste 4, Los Gatos, CA 95032-2600.
- What is California Surgical Service's phone number?
- The practice phone number listed in the NPPES registry for California Surgical Service is (831) 298-9127.
- Who is the authorized official for California Surgical Service?
- The authorized official listed on California Surgical Service's NPPES record is Ekai Hsu, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is California Surgical Service's NPI active?
- Yes — California Surgical Service's NPI (1538399365) is active in the NPPES registry as of the last update on 2026-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.