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

Individual provider Internal Medicine Physician · NPI 1205941010

Leonard Mark Okun, MD is an Internal Medicine Physician in San Diego, California. Licensed in California. Registered with an NPI since 2006.

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

5575 Rufflin Rd Ste 100
San Diego, CA 92123
Phone: (858) 565-1300
Fax: (858) 565-6932
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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 G21981 (CA)

Record details

NPI number1205941010
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 20, 2006
Last updated in NPPESJuly 8, 2007

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