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

Joshua H Rassen MD Inc

Organization Internal Medicine Physician · NPI 1619512548

Joshua H Rassen MD Inc is an Internal Medicine Physician in Sonoma, California. Registered with an NPI since 2019.

In the registry since
2019
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

181 Andrieux St Ste 202
Sonoma, CA 95476-6920
Phone: (707) 933-0500
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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

Record details

NPI number1619512548
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Joshua Rassen — President · (707) 935-3759
NPI enumeratedNovember 14, 2019
Last updated in NPPESNovember 14, 2019
Mailing address1545 N Castle Rd, Sonoma, CA 95476-4864

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