Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Delaney M.D., A Professional Corporation

Pain Medicine Physician in Walnut Creek, CA · enumerated 2006 · authorized official Leslie Delaney, Ceo.

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

National Provider Identifier

1801805817

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Delaney M.D., A Professional Corporation

Other name <Unavail>

Practice address 130 La Casa Via Ste 209, Walnut Creek, CA, 94598

Phone (925) 988-9333

Fax (925) 988-9335

Enumeration date Aug 7, 2006

Last updated in NPPES Apr 3, 2020

Taxonomy & classification

208VP0000X Pain Medicine Physician Allopathic & Osteopathic Physicians · License FNP34876 (CA) Primary

Authorized official

Name Leslie Delaney

Title Ceo

Phone (925) 988-9333

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 Delaney M.D., A Professional Corporation?

Delaney M.D., A Professional Corporation is registered in NPPES as a Pain Medicine 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

Browse all →

Leslie Delaney Pain Medicine Physician · Walnut Creek, CA NPI 1124110309

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-03.