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

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 →

Practice location Address checks out

690 Guzzi Ln Ste C
Sonora, CA 95370-5292
Phone: (209) 533-0333
Fax: (209) 533-2749
Show map & directions

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
Mailing address690 Guzzi Ln Ste C, Sonora, CA 95370-5292

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