NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Adam Wallach,M.D. A Professional Corporation

Specialist in Danville, CA · enumerated 2011 · authorized official Adam Wallach, Physican/Owner.

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

National Provider Identifier

1346517620

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Adam Wallach,M.D. A Professional Corporation
Practice address 400 El Cerro Blvd., Ste. 204, Danville, CA, 94526
Phone (925) 837-8848
Enumeration date Nov 30, 2011
Last updated in NPPES Nov 30, 2011

Taxonomy & classification

174400000X Specialist Other Service Providers · License G85998 (CA) Primary

Authorized official

Name Adam Wallach
Title Physican/Owner
Phone (925) 837-8848

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

Where is Adam Wallach,M.D. A Professional Corporation located?
The practice location on file with NPPES is in Danville, CA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2011-11-30. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-30.