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

Dr. Charissa Hoi Yan So, MD

Individual provider Internal Medicine Physician · NPI 1558563700

Dr. Charissa Hoi Yan So, MD is an Internal Medicine in Sylmar, California. Graduated from University of California, Irvine, California College of Medicine in 2005, 21 years ago. Practices with County of Los Angeles, a 390-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
21
Trained at
University of California, Irvine, California College of Medicine
Licensed in
CA
In the registry since
2007
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

14445 Olive View Dr # 2B-182
Sylmar, CA 91342-1437
Phone: (818) 364-3205
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A97824 (CA)

Record details

NPI number1558563700
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 1, 2007
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, IRVINE, CALIFORNIA COLLEGE OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice County Of Los Angeles — 390 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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