Franklin Crystal, MD
NPI 1770591521 · Ophthalmology Physician · El Cajon, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Franklin Crystal, MD is a Ophthalmology Physician provider in El Cajon, CA (NPI 1770591521).
Provider details
- NPI number
- 1770591521
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G24134 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-08-04
- Last updated
- 2010-07-29
Frequently asked questions
- What is Franklin Crystal's NPI number?
- Franklin Crystal's National Provider Identifier (NPI) is 1770591521, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Franklin Crystal's specialty?
- Franklin Crystal is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Franklin Crystal located?
- Franklin Crystal's practice location on file with NPPES is 225 W Madison Ave, El Cajon, CA 92020.
- What is Franklin Crystal's phone number?
- The practice phone number listed in the NPPES registry for Franklin Crystal is (619) 442-0844.
- Does Franklin Crystal accept Medicare?
- Franklin Crystal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Franklin Crystal's NPI active?
- Yes — Franklin Crystal's NPI (1770591521) is active in the NPPES registry as of the last update on 2010-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.