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

Robert I Ostroff MD Inc

Organization General Acute Care Hospital · NPI 1215099619

Robert I Ostroff MD Inc is a General Acute Care Hospital in Petaluma, California. Medicare rates this hospital 4 out of 5. Licensed in California.

CMS rating
4 of 5
Licensed in
CA
In the registry since
2006
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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CMS quality rating

4 out of 5 — official hospital rating from CMS Care Compare (CCN 050136)

Practice location Address checks out

400 N McDowell Blvd
Petaluma, CA 94954-2339
Phone: (707) 778-1111
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

General Acute Care Hospital (primary) Taxonomy 282N00000X · Licence G23046 (CA)

Record details

NPI number1215099619
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Mary Ann Pises — Business Manager · (707) 778-7862
NPI enumeratedDecember 14, 2006
Last updated in NPPESJuly 17, 2007
Mailing address1310 Commerce St, Suite B, Petaluma, CA 94954-1469

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