DAVID G GROSS DO, PC
NPI 1073646089
Optometrist in Merrillville, IN

Q: What is David G Gross Do, PC's NPI number?

The NPI number for David G Gross Do, PC is 1073646089. It was assigned to this organization in the NPPES registry on March 13, 2007. The provider is doing business as Deen-Gross Eye Centers.

Q: What is David G Gross Do, PC's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Active since March 13, 2007

303 W 89TH AVE, SUITE E4, MERRILLVILLE, IN 46410(219) 769-8989(219) 756-6389 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 11, 2025, Aug 22, 2020 (2 updates tracked since 2020).

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About David G Gross Do, Pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DAVID G GROSS DO, PC (NPI 1073646089), doing business as Deen-gross Eye Centers, is a healthcare organization registered as an optometrist in Merrillville, Indiana and active in the NPI registry since March 2007. The organization lists David G Gross, Owner, as its authorized official.

NPPES Registry Identity

NPI1073646089

Entity TypeOrganization

Primary Taxonomy152W00000X

Legal Business NameDAVID G GROSS DO, PC

Location Address303 W 89TH AVE, SUITE E4Merrillville, IN 46410-6294

Mailing Address303 W 89th Ave, Suite E4Merrillville, IN 46410-6294 · (219) 769-8989 · Fax (219) 756-6389

Phone(219) 769-8989

Fax(219) 756-6389

Organization SubpartNo

Authorized OfficialDavid G GrossOwner · (219) 769-8989

Enumeration DateMarch 13, 2007

Last NPPES UpdateSeptember 11, 20252 updates tracked since enumeration

✔ NPI 1073646089 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOptometristEye and Vision Services Providers

Taxonomy Code152W00000X

Definition

Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

Also ListedOphthalmologyTaxonomy 207W00000X

303 W 89TH AVE, Merrillville, IN 46410

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Other Names 1

Doing Business AsDeen-gross Eye Centers

Other Identifiers 1

Other000000105018IN · Anthem

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

David G Gross Do, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 3 clinicians reassign Medicare billing to David G Gross Do, PC, which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.

Clinicians, nearest first (3)

David Gross, D.O.

Ophthalmology

NPI 1346373313

303 W 89TH AVE SUITE E4
Merrillville, IN 46410

(219) 769-8989

✔ PECOS✔ Accepts MedicareSame address

Jamie Taffora, OD

Optometry

NPI 1144238890

303 W 89TH AVE
Merrillville, IN 46410

(219) 769-8989

✔ PECOS✔ Accepts MedicareSame address

Jeffrey Nelson, MD

Ophthalmology

NPI 1235459132

303 W 89TH AVE SUITE E-4
Merrillville, IN 46410

(219) 769-8989

✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is David G Gross Do, PC's NPI number?

The NPI number for David G Gross Do, PC is 1073646089. It was assigned to this organization in the NPPES registry on March 13, 2007. The provider is doing business as Deen-Gross Eye Centers.

Where is David G Gross Do, PC located?

David G Gross Do, PC is located at 303 W 89th Ave Suite E4, Merrillville, IN 46410. The listed phone number is (219) 769-8989.

What is David G Gross Do, PC's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is David G Gross Do, PC enrolled in Medicare?

Yes. David G Gross Do, PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through David G Gross Do, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to David G Gross Do, PC, in Ophthalmology and Optometry. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does David G Gross Do, PC accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian and Anthem Blue Cross and Blue Shield list David G Gross Do, PC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for David G Gross Do, PC was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.