Individual
DR. H R CHRISTOPHER O'BRIEN
Active
Sole proprietor
Yes
Provider details
NPI number
Gender
Man
Credential
PHARM.D, BCPP, APH
Contact information
Practice address
1127 WILSHIRE BLVD STE 1415, LOS ANGELES, CA 90017-4005
(213) 924-8889
(213) 924-8889
Mailing address
10413 OLD RIVER SCHOOL RD, DOWNEY, CA 90241-2015
(213) 924-8889
(213) 927-3654
Taxonomy
Speciality
Code
Description
License number
State
183500000X
Pharmacist
49570
CA
1835P1300X
Psychiatric Pharmacist
Primary
10158
CA
208U00000X
Clinical Pharmacology Physician
49570
CA
Other
Enumeration date
03/29/2007
Last updated
12/12/2025
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