Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Arthritis Associates of Redding, A Medical Group

Rheumatology Physician in Redding, CA · enumerated 2006 · authorized official William Reeder, Owner.

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

National Provider Identifier

1457302762

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Arthritis Associates of Redding, A Medical Group

Practice address 2510 Airpark Dr, Suite #305, Redding, CA, 96001

Phone (530) 241-8822

Fax (530) 241-0746

Enumeration date May 12, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License G50653 AND G76391 (CA) Primary

Authorized official

Name William Reeder

Title Owner

Phone (530) 241-8822

Other identifiers

Identifier	Type	State	Issuer
GR0063210	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Arthritis Associates of Redding, A Medical Group?

The NPI for Arthritis Associates of Redding, A Medical Group is 1457302762, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Arthritis Associates of Redding, A Medical Group?

NPPES lists William Reeder (Owner) as the authorized official for this organization.

Providers at this address

Browse all →

Daniel Lensink Ophthalmology Physician · Redding, CA NPI 1235124835 Redding Family Medical Group Inc Family Medicine Physician · Redding, CA NPI 1487640868 Michael Obrien Neurology Physician · Redding, CA NPI 1952382228 North State Cancer Specialty Inc Hematology & Oncology Physician · Redding, CA NPI 1396701546 William Reeder Rheumatology Physician · Redding, CA NPI 1134171564 Timothy Peters Rheumatology Physician · Redding, CA NPI 1417909847 Daniel B. Lensink MD Medical Corporation Corporate Health Clinic/Center · Redding, CA NPI 1841244902 Ellen Nordal Family Nurse Practitioner · Redding, CA NPI 1275569063

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.