Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Joel Ringold, M.D., A Professional Medical Corporation

Endocrinology, Diabetes & Metabolism Physician in Rancho Palos Verdes, CA · enumerated 2006 · authorized official Joel Ringold, Physician.

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

National Provider Identifier

1700971025

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Registry record

Entity type Organization (Type 2)

Legal business name Joel Ringold, M.D., A Professional Medical Corporation

Practice address 30227 Calle De Suenos, Rancho Palos Verdes, CA, 90275

Phone (310) 541-8777

Fax (310) 541-1977

Enumeration date Oct 3, 2006

Last updated in NPPES May 20, 2014

Taxonomy & classification

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License G10262 (CA) Primary

Authorized official

Name Joel Ringold

Title Physician

Phone (310) 541-8777

Other identifiers

Identifier	Type	State	Issuer
00G102610	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 Joel Ringold, M.D., A Professional Medical Corporation?

Joel Ringold, M.D., A Professional Medical Corporation is registered in NPPES as a Endocrinology, Diabetes & Metabolism 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-20.