Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

David G Gross Do, PC

Optometrist in Merrillville, IN · enumerated 2007 · authorized official David Gross, Owner.

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

National Provider Identifier

1073646089

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name David G Gross Do, PC

Other name <Unavail>

Practice address 303 W 89th Ave, Suite E4, Merrillville, IN, 46410

Phone (219) 769-8989

Fax (219) 756-6389

Enumeration date Mar 13, 2007

Last updated in NPPES Sep 11, 2025

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers Primary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name David Gross

Title Owner

Phone (219) 769-8989

Other identifiers

Identifier	Type	State	Issuer
000000105018	Other	IN	ANTHEM

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-09-11. Verify at npiregistry.cms.hhs.gov.

Where is David G Gross Do, PC located?

The practice location on file with NPPES is in Merrillville, IN.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.