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Grossman and Grossman Mds A Medical Corporation

Obstetrics Physician in Thousand Oaks, CA · enumerated 2007 · authorized official Robert Grossman, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1255483525

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Registry record

Entity type Organization (Type 2)
Legal business name Grossman and Grossman Mds A Medical Corporation
Practice address 558 N Ventu Park Rd, Suite A, Thousand Oaks, CA, 91320
Phone (805) 498-0240
Enumeration date Jan 17, 2007
Last updated in NPPES Jan 16, 2026

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Secondary
207VX0000X Obstetrics Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Robert Grossman
Title President
Phone (805) 498-0240

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Who is the authorized official for Grossman and Grossman Mds A Medical Corporation?
NPPES lists Robert Grossman (President) as the authorized official for this organization.
What is the NPI number for Grossman and Grossman Mds A Medical Corporation?
The NPI for Grossman and Grossman Mds A Medical Corporation is 1255483525, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-16.