Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Redwood Regional Medical Group, Inc

Organization Hematology (Internal Medicine) Physician · NPI 1891705257

Redwood Regional Medical Group, Inc provides Hematology (Internal Medicine) Physician services in Santa Rosa, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
Specialties on file
5
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

3555 Round Barn Cir Ste 100
Santa Rosa, CA 95403-1757 Not confirmed with CMS for 18 years — call before visiting
Phone: (707) 528-1050
Fax: (707) 525-3874
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X
Medical Oncology Physician Taxonomy 207RX0202X
Radiation Oncology Physician Taxonomy 2085R0001X
Clinical Medical Laboratory Taxonomy 291U00000X · Licence 05D0612494 (CA)

Record details

NPI number1891705257
Entity typeOrganization (Type 2)
Organization subpartYes
Parent organizationRedwood Regional Medical Group
Authorized official Helen Collins — President · (707) 546-4062
Other names Redwood Regional Oncology Center
NPI enumeratedAugust 9, 2006
Last updated in NPPESApril 28, 2008
Mailing address3555 Round Barn Cir Ste 100, Santa Rosa, CA 95403-1757

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