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

Individual provider Anesthesiology Physician · NPI 1952563108

Dr. Sonja Nicole Loo, MD is an Anesthesiology in Santa Monica, California. Graduated from Medical College of Wisconsin in 2008, 18 years ago. Practices with Western Anesthesia Medical Associates Inc, a 49-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
18
Trained at
Medical College of Wisconsin
Licensed in
CA
In the registry since
2008
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

2121 Santa Monica Blvd C/o Anesthesia Dept ST John's Health Center
Santa Monica, CA 90404-2303
Phone: (503) 468-6333
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence A123220 (CA)

Record details

NPI number1952563108
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2008
Last updated in NPPESNovember 19, 2013

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 2008 (18 years in practice)
Group practice Western Anesthesia Medical Associates Inc — 49 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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