Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Craig Jann Leong, MD

Individual provider Ophthalmology Physician · NPI 1639103344

Dr. Craig Jann Leong, MD is an Ophthalmology Physician in Walnut Creek, California. Works from 3 locations. Licensed in California.

Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

365 Lennon Ln Ste 250
Walnut Creek, CA 94598-5915
Phone: (925) 943-6800
Fax: (925) 943-6880
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 20130 Lake Chabot Rd Ste 303, Castro Valley, CA 94546-5340 — (510) 733-1888
  • 5980 Stoneridge Dr Ste 117, Pleasanton, CA 94588-2723 — (925) 463-8200

Specialties & licences

Retina Specialist (Ophthalmology) Physician (primary) Taxonomy 207WX0107X · Licence G28041 (CA)
Ophthalmology Physician Taxonomy 207W00000X · Licence G28041 (CA)

Record details

NPI number1639103344
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 10, 2006
Last updated in NPPESApril 29, 2021
Certification dateApril 29, 2021

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