Provider Demographics
NPI:1932319464
Name:SIEN, STEFAN (DO)
Entity Type:Individual
Prefix:DR
First Name:STEFAN
Middle Name:
Last Name:SIEN
Suffix:
Gender:M
Credentials:DO
Other - Prefix:
Other - First Name:
Other - Middle Name:
Other - Last Name:
Other - Suffix:
Other - Last Name Type:
Other - Credentials:
Mailing Address - Street 1:28078 BAXTER RD STE 324
Mailing Address - Street 2:
Mailing Address - City:MURRIETA
Mailing Address - State:CA
Mailing Address - Zip Code:92563-1404
Mailing Address - Country:US
Mailing Address - Phone:951-566-5646
Mailing Address - Fax:951-566-5670
Practice Address - Street 1:28078 BAXTER RD STE 324
Practice Address - Street 2:
Practice Address - City:MURRIETA
Practice Address - State:CA
Practice Address - Zip Code:92563-1404
Practice Address - Country:US
Practice Address - Phone:951-566-5646
Practice Address - Fax:951-566-5670
Is Sole Proprietor?:Yes
Enumeration Date:2007-05-23
Last Update Date:2021-06-09
Deactivation Date:
Deactivation Code:
Reactivation Date:
Provider Licenses
StateLicense IDTaxonomies
CA20A12378207RC0200X, 207RP1001X, 207RP1001X
Provider Taxonomies
Primary?CodeTypeClassificationSpecialization
Yes207RP1001XAllopathic & Osteopathic PhysiciansInternal MedicinePulmonary Disease
No207RC0200XAllopathic & Osteopathic PhysiciansInternal MedicineCritical Care Medicine