Individual provider · Type 1 NPI

Howard Guan, MD

Glaucoma Specialist (Ophthalmology) Physician · San Marcos, CA

NPI number 1134427636 Active

Practice location

340 Rancheros Drive, Suites 164/166
San Marcos, CA 92069

Fax (760) 290-7044

Specialties and licenses

TaxonomyCodeLicense
Ophthalmology Physician 207W00000XA119766 (CA)
Glaucoma Specialist (Ophthalmology) Physician Primary 207WX0009XA119766 (CA)

Glaucoma Specialist (Ophthalmology) Physician: An ophthalmologist who specializes in the treatment of glaucoma and other disorders related to increased intraocular pressure and optic nerve damage. This specialty involves the medical and surgical treatment of these conditions.

3 other providers at this address

About NPI 1134427636

Howard Guan, MD's National Provider Identifier is 1134427636, issued on Mar 7, 2011. The primary taxonomy on file is Glaucoma Specialist (Ophthalmology) Physician (207WX0009X), and the practice location is in San Marcos, CA. The record was last updated on Oct 21, 2025.