Jeffrey Marshak, O.D.
NPI 1225165590 · Optometrist · El Segundo, CA
Jeffrey Marshak, O.D. is a Optometrist provider in El Segundo, CA (NPI 1225165590).
Provider details
- NPI number
- 1225165590
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- OPT 5564 TPL (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Eye and Vision Services Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2007-02-27
- Last updated
- 2012-01-12
Frequently asked questions
- What is Jeffrey Marshak's NPI number?
- Jeffrey Marshak's National Provider Identifier (NPI) is 1225165590, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Marshak's specialty?
- Jeffrey Marshak is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Jeffrey Marshak located?
- Jeffrey Marshak's practice location on file with NPPES is 390 N Sepulveda Blvd, El Segundo, CA 90245-4475.
- What is Jeffrey Marshak's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Marshak is (310) 641-1700.
- Is Jeffrey Marshak's NPI active?
- Yes — Jeffrey Marshak's NPI (1225165590) is active in the NPPES registry as of the last update on 2012-01-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.