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

Maureen M Regan, MD

Individual provider Internal Medicine Physician · NPI 1477532273

Maureen M Regan, MD is an Internal Medicine Physician in Sonora, 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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

690 Guzzi Ln Ste C
Sonora, CA 95370-5292 Not confirmed with CMS for 18 years — call before visiting
Phone: (209) 533-0333
Fax: (209) 533-2749
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 G61154 (CA)

Record details

NPI number1477532273
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 11, 2006
Last updated in NPPESSeptember 17, 2008

Other providers in Sonora