Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

David G. Gross, D.O., P.C.

Ophthalmology Physician in Merrillville, IN · enumerated 2010 · authorized official David Gross, Owner.

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

National Provider Identifier

1205156965

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Registry record

Entity type Organization (Type 2)

Legal business name David G. Gross, D.O., P.C.

Other name <Unavail>

Practice address 6111 Harrison St, Suite 120, Merrillville, IN, 46410

Phone (219) 980-6143

Fax (219) 980-6146

Enumeration date Jun 4, 2010

Last updated in NPPES Jun 4, 2010

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 50004042A (IN) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 50004042A (IN) Primary

Authorized official

Name David Gross

Title Owner

Phone (219) 769-8989

Other identifiers

Identifier	Type	State	Issuer
000000105018	Other	IN	ANTHEM
100169420	Medicaid	IN	-

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.

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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 2010-06-04. Verify at npiregistry.cms.hhs.gov.

Where is David G. Gross, D.O., P.C. located?

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

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-04.