John A. Katzaroff, O.D., a Professional Corporation
NPI 1902513674 · Optometrist · Northridge, CA
John A. Katzaroff, O.D., a Professional Corporation is a Optometrist organization in Northridge, CA (NPI 1902513674).
Provider details
- NPI number
- 1902513674
- Entity type
- Organization
- Primary specialty
- OptometristEye and Vision Services Providers
- Organization subpart
- No
- Authorized official
- John Katzaroff, Owner / Optometrist(714) 420-1133
Specialties & taxonomies
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
3 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
- 2022-11-02
- Last updated
- 2022-11-02
- Certified
- 2022-11-02
Frequently asked questions
- What is John A. Katzaroff, O.D., a Professional Corporation's NPI number?
- John A. Katzaroff, O.D., a Professional Corporation's National Provider Identifier (NPI) is 1902513674, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John A. Katzaroff, O.D., a Professional Corporation?
- John A. Katzaroff, O.D., a Professional Corporation is classified in the NPPES registry as Optometrist (Eye and Vision Services Providers).
- Where is John A. Katzaroff, O.D., a Professional Corporation located?
- John A. Katzaroff, O.D., a Professional Corporation's practice location on file with NPPES is 8810 Tampa Ave, Northridge, CA 91324-3519.
- What is John A. Katzaroff, O.D., a Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for John A. Katzaroff, O.D., a Professional Corporation is (818) 775-5810.
- Who is the authorized official for John A. Katzaroff, O.D., a Professional Corporation?
- The authorized official listed on John A. Katzaroff, O.D., a Professional Corporation's NPPES record is John Katzaroff, Owner / Optometrist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John A. Katzaroff, O.D., a Professional Corporation's NPI active?
- Yes — John A. Katzaroff, O.D., a Professional Corporation's NPI (1902513674) is active in the NPPES registry as of the last update on 2022-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.