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

Dr. Joseph H. Ruan, MD

Individual provider Surgery Physician · NPI 1043498876

Dr. Joseph H. Ruan, MD is a Colorectal Surgery (Proctology) in Fontana, California. Graduated from Dalhousie University Faculty of Dentistry in 2004, 22 years ago. Practices with Southern California Permanente Medical Group, an 11,242-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
22
Trained at
Dalhousie University Faculty of Dentistry
Licensed in
CA
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

9961 Sierra Ave Dept OF General And Plastic Surgery
Fontana, CA 92335-6720
Phone: (909) 427-5000
Fax: (909) 427-7060
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence A93995 (CA)

Record details

NPI number1043498876
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 4, 2008
Last updated in NPPESNovember 30, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCOLORECTAL SURGERY (PROCTOLOGY)
Medical schoolDALHOUSIE UNIVERSITY FACULTY OF DENTISTRY
Graduated 2004 (22 years in practice)
Group practice Southern California Permanente Medical Group — 11242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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