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

Dr. Stella Sien, DO

Individual provider Obstetrics & Gynecology Physician · NPI 1558592444

Dr. Stella Sien, DO is an Obstetrics & Gynecology Physician in Colton, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2009
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

400 N Pepper Ave Women's Health Dept Module 7
Colton, CA 92324-1801
Phone: (909) 580-3470
Show map & directions

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

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 20A9946 (CA)

Record details

NPI number1558592444
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorYes
NPI enumeratedJuly 27, 2009
Last updated in NPPESNovember 17, 2021
Certification dateNovember 17, 2021
Mailing address400 N Pepper Ave, Women'S Health Department, Module 7, Colton, CA 92324-1801

Other providers in Colton