Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kumar Venkatachalam, MD

Gastroenterology Physician in Merrillville, IN · enumerated 2005.

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

National Provider Identifier

1154325421

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Registry record

Entity type Individual (Type 1)

Name Kumar Venkatachalam

Credential MD

Sex Male

Practice address 8895 Broadway, Merrillville, IN, 46410

Phone (219) 738-2081

Fax (219) 736-4658

Enumeration date Jun 2, 2005

Last updated in NPPES May 6, 2020

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 01048257A (IN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
110168975	Other	IN	RAILROAD MEDICARE
9115389	Other	IL	ANTHEM BC/BS
200180870A	Medicaid	IN	-
000000085025	Other	IN	ANTHEM BC/BS

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 1154325421 active?

Yes, as of the latest NPPES snapshot, NPI 1154325421 is active (record last updated 2020-05-06).

How do I verify Kumar Venkatachalam's NPI record?

Cross-check NPI 1154325421 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-05-06.