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

Dr. Irene S. Tan, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1699942425

Dr. Irene S. Tan, MD is an Obstetrics/Gynecology in Simi Valley, California. Qualified in 2004, 22 years ago. Practices with Simi Obstetrics and Gynecology Medical Group a Medical Corp, a 4-clinician group and accepts Medicare assignment. Licensed in California.

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

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1147 Red Tail Way
Simi Valley, CA 93065-7232
Phone: (805) 527-8055
Fax: (805) 520-8849
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

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

Record details

NPI number1699942425
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 12, 2008
Last updated in NPPESJune 27, 2012
Mailing address1147 Red Tail Way, Simi Valley, CA 93065-7232

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Simi Obstetrics And Gynecology Medical Group A Medical Corp — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Simi Valley