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

Dr. Michael Jack Grossman, MD

Individual provider Family Medicine Physician · NPI 1942367008

Dr. Michael Jack Grossman, MD is a Family Medicine Physician in Lake Forest, 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.

See every abbreviation used in this directory →

Practice location Address checks out

24432 Muirlands Blvd Ste 111
Lake Forest, CA 92630-3939
Phone: (949) 770-7301
Fax: (949) 770-0634
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence G33405 (CA)

Record details

NPI number1942367008
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 1, 2007
Last updated in NPPESMarch 27, 2008
Mailing address24432 Muirlands Blvd, Suite 111, Lake Forest, CA 92630-3939

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