IndividualActive
Craig Leong, M.D.
NPI 1639103344 · Retina Specialist (Ophthalmology) Physician · Walnut Creek, CA
Provider details
- NPI number
- 1639103344
- Entity type
- Individual
- Primary specialty
- Retina Specialist (Ophthalmology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G28041 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(100/100 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
3 documented practice locations
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
365 Lennon Ln Ste 250
Walnut Creek, CA 94598-5915
Phone: (925) 943-6800
Fax: (925) 943-6880
Street-level locationGet directions
Mailing address
365 Lennon Ln Ste 250
Walnut Creek, CA 94598-5915
Additional practice locations (2)
- 20130 Lake Chabot Rd Ste 303Castro Valley, CA 94546-5340Phone: (510) 733-1888Fax: (510) 881-5332
- 5980 Stoneridge Dr Ste 117Pleasanton, CA 94588-2723Phone: (925) 463-8200Fax: (925) 463-8201
Registry dates
- Enumerated
- 2006-07-10
- Last updated
- 2021-04-29
- Certified
- 2021-04-29
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.