Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Lake County Pediatrics LLC

Q: What is the NPI number for Lake County Pediatrics LLC?

The NPI for Lake County Pediatrics LLC is 1265654099, a Type 2 (organization) record in the CMS NPPES registry.

Pediatrics Physician in Merrillville, IN · enumerated 2007 · authorized official Constancio Acosta, Physician Pediatrician.

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

National Provider Identifier

1265654099

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Registry record

Entity type Organization (Type 2)

Legal business name Lake County Pediatrics LLC

Practice address 8500 Broadway, Ste E, Merrillville, IN, 46410

Phone (219) 736-9580

Fax (219) 736-9581

Enumeration date May 2, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 01025495 (IN) Primary

Authorized official

Name Constancio Acosta

Title Physician Pediatrician

Phone (219) 736-9580

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

Who is the authorized official for Lake County Pediatrics LLC?

NPPES lists Constancio Acosta (Physician Pediatrician) as the authorized official for this organization.

What is the NPI number for Lake County Pediatrics LLC?

The NPI for Lake County Pediatrics LLC is 1265654099, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.