Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Rheumatology and Diagnostic Center

Rheumatology Physician in Los Angeles, CA · enumerated 2012 · authorized official Assa Weinberg, President.

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

National Provider Identifier

1871852343

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Registry record

Entity type Organization (Type 2)

Legal business name Rheumatology and Diagnostic Center

Practice address 6464 W Sunset Blvd, Suite 1010, Los Angeles, CA, 90028

Phone (323) 461-5858

Fax (323) 461-5852

Enumeration date May 3, 2012

Last updated in NPPES May 3, 2012

Taxonomy & classification

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Assa Weinberg

Title President

Phone (323) 461-5858

Other identifiers

Identifier	Type	State	Issuer
00C418890	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 type of organization is Rheumatology and Diagnostic Center?

Rheumatology and Diagnostic Center is registered in NPPES as a Rheumatology Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

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Jacklin Meshkanian Chiropractor · Hollywood, CA NPI 1346271095 Assa Weinberg, MD, A Medical Corporation Internal Medicine Physician · Los Angeles, CA NPI 1174693626 Hop Nguyen General Practice Dentistry · Los Angeles, CA NPI 1730238098 Stella Gosis General Practice Dentistry · Los Angeles, CA NPI 1487792933 Monica Kenyon Massage Therapist · Hollywood, CA NPI 1861510141 Judith Mondry - Berk Psychiatry Physician · Los Angeles, CA NPI 1285826123 Hop Trung Nguyen, D.D.S. General Practice Dentistry · Hollywood, CA NPI 1891957395 Meshkanian Chiropractic Corporation Chiropractor · Hollywood, CA NPI 1891931630

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-05-03.