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

Individual provider Orthopaedic Surgery Physician · NPI 1821041161

Dr. Mark Shigeru Ishimaru, MD is an Orthopaedic Surgery Physician in Mission Viejo, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
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

26730 Crown Valley Pkwy Ste 200
Mission Viejo, CA 92691-8001
Phone: (949) 364-2154
Fax: (949) 364-2110
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence G27381 (CA)

Record details

NPI number1821041161
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 18, 2006
Last updated in NPPESJuly 8, 2007

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