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

Guy Delorefice MD Inc

Organization Internal Medicine Physician · NPI 1033446125

Guy Delorefice MD Inc is an Internal Medicine Physician in Sonoma, California. Licensed in California. Registered with an NPI since 2009.

Licensed in
CA
In the registry since
2009
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

370 Perkins St
Sonoma, CA 95476-6827
Phone: (707) 938-1255
Fax: (707) 938-2321
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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 A0689180 (CA)

Record details

NPI number1033446125
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Guy Delorefice — Officer · (707) 938-1255
NPI enumeratedNovember 10, 2009
Last updated in NPPESDecember 4, 2018
Mailing address370 Perkins St, Sonoma, CA 95476-6827

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