Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Warren Altwerger, DPM

Podiatrist in Newburgh, NY · enumerated 2006.

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

National Provider Identifier

1831278373

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Warren Altwerger

Credential DPM

Sex Male

Practice address Newburgh, NY, 12550

Phone (845) 565-3331

Fax (845) 465-3351

Enumeration date Nov 3, 2006

Last updated in NPPES Oct 4, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

213E00000X Podiatrist Podiatric Medicine & Surgery Service Providers · License N2928 (NY) Primary

DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM credential

Other identifiers

Identifier	Type	State	Issuer
P37222	Other	NY	EMPIRE BLUE CROSS BLUE SH
990109	Other	-	MVP
104012	Other	-	WELLCARE
PL6301	Other	NY	EMPIRE BLUE CROSS BLUE SH
P2810453	Other	-	OXFORD
0083825	Other	-	GHI

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

Is NPI 1831278373 active?

Yes, as of the latest NPPES snapshot, NPI 1831278373 is active (record last updated 2012-10-04).

How do I verify Warren Altwerger's NPI record?

Cross-check NPI 1831278373 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-04.