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

Mr. Thomas O'Callaghan, MD

Individual provider Surgery Physician · NPI 1699751321

Mr. Thomas O'Callaghan, MD is a Surgery Physician in Loma Linda, California. Licensed in California. Registered with an NPI since 2005.

Licensed in
CA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

11370 Anderson St Ste 2100
Loma Linda, CA 92354-3450
Phone: (909) 558-2822
Show map & directions

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

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence C42550 (CA)

Record details

NPI number1699751321
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 15, 2005
Last updated in NPPESOctober 4, 2007

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