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Sierra Rheumatology Inc, A Professional Corporation

Rheumatology Physician in Rocklin, CA · enumerated 2011 · authorized official Robinder Dhillon, Managing Director.

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

National Provider Identifier

1548564735

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Registry record

Entity type Organization (Type 2)
Legal business name Sierra Rheumatology Inc, A Professional Corporation
Practice address 2207 Plaza Dr Ste 100, Rocklin, CA, 95765
Phone (916) 677-4744
Fax (916) 781-2029
Enumeration date Jan 2, 2011
Last updated in NPPES Mar 30, 2026

Taxonomy & classification

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License A97133 (CA) Primary

Authorized official

Name Robinder Dhillon
Title Managing Director
Phone (916) 677-4744

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 Sierra Rheumatology Inc, A Professional Corporation?
NPPES lists Robinder Dhillon (Managing Director) as the authorized official for this organization.
What is the NPI number for Sierra Rheumatology Inc, A Professional Corporation?
The NPI for Sierra Rheumatology Inc, A Professional Corporation is 1548564735, 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 2026-03-30.