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

Ruby Jane Sia, MD

Individual provider Internal Medicine Physician · NPI 1518061860

Ruby Jane Sia, MD is an Internal Medicine in Apple Valley, California. Qualified in 1991, 35 years ago. Accepts Medicare assignment. Licensed in California.

Years since qualifying
35
Licensed in
CA
In the registry since
2006
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

16008 Tuscola Rd Ste 1
Apple Valley, CA 92307-1320
Phone: (760) 946-3888
Fax: (760) 242-0388
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A63962 (CA)

Record details

NPI number1518061860
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 8, 2006
Last updated in NPPESOctober 12, 2012
Mailing address16008 Tuscola Rd, Suite 1, Apple Valley, CA 92307-1320

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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