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Ronald G Connolly MD

Rheumatology Physician in Walnut Creek, CA · enumerated 2006 · authorized official Ronald Connolly, Owner.

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

National Provider Identifier

1679641153

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Registry record

Entity type Organization (Type 2)
Legal business name Ronald G Connolly MD
Practice address 1776 Ygnacio Valley Road, Suite 106, Walnut Creek, CA, 94598
Phone (925) 974-7000
Fax (925) 974-7003
Enumeration date Dec 1, 2006
Last updated in NPPES Nov 7, 2007

Taxonomy & classification

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License G13521 (CA) Primary

Authorized official

Name Ronald Connolly
Title Owner
Phone (925) 974-7000

Other identifiers

Identifier Type State Issuer
00G135210 Medicaid CA -

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 Ronald G Connolly MD?
NPPES lists Ronald Connolly (Owner) as the authorized official for this organization.
What is the NPI number for Ronald G Connolly MD?
The NPI for Ronald G Connolly MD is 1679641153, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-07.