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

Brett Marar Chamberlin, MD

Individual provider Internal Medicine Physician · NPI 1134323934

Brett Marar Chamberlin, MD is an Internal Medicine Physician in Oceanside, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
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

200 Mercy Cir
Oceanside, CA 92055
Phone: (760) 725-1288
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 105614 (CA)

Record details

NPI number1134323934
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 14, 2007
Last updated in NPPESOctober 20, 2023
Certification dateMay 23, 2022
Mailing addressPsc 455 Box 208, Fpo, AP 96540-0003

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