David G Gross Do, PC in Merrillville, IN
This location of David G Gross Do bills under NPI 1073646089, an organization record issued on Mar 13, 2007 with the primary taxonomy Optometrist. It is one of 2 NPIs registered under this name and one of 2 in Merrillville; each clinician who sees you there has their own NPI and license.
- Legal name
- David G Gross Do, PC
- Entity
- Type 2 · organization
- Primary taxonomy
- Optometrist 152W00000X
- Practice location
- 303 W 89TH AVE SUITE E4, Merrillville, IN 46410
- Phone
- 219-769-8989
- Enumerated
- Mar 13, 2007
- Record updated
- Sep 11, 2025
- Authorized official
- Owner (title as filed)
The other Merrillville NPI
- David G. Gross, Do, PC303 W 89TH AVE SUITE E4 · issued Mar 13, 20071295868016
2 clinicians CMS lists with David G Gross Do in Merrillville
- David Gross, DOOphthalmology Physician1346373313
- Jamie Taffora, ODOptometrist1144238890
Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.
Checking an organization
- Confirm the business with the Indiana secretary of state.
- Check the HHS-OIG exclusion list for the organization.
- Verify each clinician on their own record and the state license search.
All taxonomies on this record
- 152W00000X Optometrist
- 207W00000X Ophthalmology Physician
Common questions
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Which Merrillville NPI should I use?
Ask the office which NPI it bills under; all 2 Merrillville NPIs are registered under the same name.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.