OrganizationActive
Sienne S. Van Enk
NPI 1578620274 · Optometrist · Harbor City, CA
Sienne S. Van Enk is a Optometrist organization in Harbor City, CA (NPI 1578620274).
Provider details
- NPI number
- 1578620274
- Entity type
- Organization
- Primary specialty
- OptometristEye and Vision Services Providers
- Organization subpart
- No
- Authorized official
- Sienne Van Enk, Owner-Optometrist(310) 325-7855
- License
- 10560T (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
26640 Western Ave
Suite R
Harbor City, CA 90710-3600
Phone: (310) 325-7855
Fax: (310) 325-7955
Street-level locationGet directions
Mailing address
26640 Western Ave
Harbor City, CA 90710-3600
Other names (DBA / former)
- Doing business as
- Optometric Concierge
Registry dates
- Enumerated
- 2007-01-02
- Last updated
- 2009-07-10
Frequently asked questions
- What is Sienne S. Van Enk's NPI number?
- Sienne S. Van Enk's National Provider Identifier (NPI) is 1578620274, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Sienne S. Van Enk?
- Sienne S. Van Enk is classified in the NPPES registry as Optometrist (Eye and Vision Services Providers).
- Where is Sienne S. Van Enk located?
- Sienne S. Van Enk's practice location on file with NPPES is 26640 Western Ave, Harbor City, CA 90710-3600.
- What is Sienne S. Van Enk's phone number?
- The practice phone number listed in the NPPES registry for Sienne S. Van Enk is (310) 325-7855.
- Who is the authorized official for Sienne S. Van Enk?
- The authorized official listed on Sienne S. Van Enk's NPPES record is Sienne Van Enk, Owner-Optometrist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Sienne S. Van Enk's NPI active?
- Yes — Sienne S. Van Enk's NPI (1578620274) is active in the NPPES registry as of the last update on 2009-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.