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

Gregory J Joy, MD

Individual provider Emergency Medicine Physician · NPI 1942211651

Gregory J Joy, MD is an Emergency Medicine Physician in Mission Viejo, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

26991 Crown Valley Pkwy
Mission Viejo, CA 92691-6528
Phone: (949) 582-5430
Fax: (949) 348-9513
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G25323 (CA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence G25323 (CA)

Record details

NPI number1942211651
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 10, 2006
Last updated in NPPESFebruary 5, 2016

Other providers in Mission Viejo