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Contact Information

HOWARD GUAN, MD
340 RANCHEROS DRIVE
SUITES 164/166
SAN MARCOS, CA92069
 Phone: 760-598-0400
 Fax: 760-290-7044
 Website:
 

Specialty

Taxonomy Code Specialty Code Provider Type

Glaucoma Specialist

207WX0009X 18 Physician/Ophthalmology
 

Ophthalmology

207W00000X 18 Physician/Ophthalmology
Indicates primary specialty

NPI Profile & details for HOWARD GUAN · (Male)

NPI Number 1134427636
Status Active
Credentials MD
Entity Individual
Enumeration date 03/07/2011
Last updated 10/21/2025 - About 8 months ago
Sole proprietor 1 No
Identifiers
  • CA License # A119766
Hospital affiliation(s)
  • LOMA LINDA UNIVERSITY MEDICAL CENTER - (Acute Care)
    11234 ANDERSON ST
    LOMA LINDA, CA 92354
  • RIVERSIDE COUNTY REGIONAL MEDICAL CENTER - (Acute Care)
    26520 CACTUS AVENUE
    MORENO VALLEY, CA 92555
1 A sole proprietor/sole proprietorship is an individual, and as such, is eligible for a single NPI number. The sole proprietor must apply for the NPI number using his or her own Social Security Number (SSN), not an Employer Identification Number (EIN) even if he/she has an EIN.

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