Active NPI
Gregory John Nowak
- Optometrist
- Rochester, MI
National Provider Identifier
1285761916
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Optometrist
- License
- 4901003605
- Practice address
- 318 S Main St
Rochester, MI 48307-2030 - Phone
- (248) 608-0055
- NPI assigned
- Feb 28, 2007
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Optometrist | 152W00000X | 4901003605 | MI | Primary |
| Optician | 156FX1800X |
Addresses
Primary practice location
318 S Main St
Rochester, MI 48307-2030
Mailing address
318 S Main St
Rochester, MI 48307-2030
Phone (248) 608-0055
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Twinsite Optical LLC | Optometrist | Past | Accepting new patients |
Organizations & group practices 1
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1172620800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1285761916",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "318 S MAIN ST",
"city": "ROCHESTER",
"state": "MI",
"postal_code": "483072030",
"telephone_number": "248-608-0055"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "318 S MAIN ST",
"city": "ROCHESTER",
"state": "MI",
"postal_code": "483072030",
"telephone_number": "248-608-0055"
}
],
"practiceLocations": [],
"basic": {
"last_name": "NOWAK",
"first_name": "GREGORY",
"middle_name": "JOHN",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2007-02-28",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "152W00000X",
"taxonomy_group": "",
"desc": "Optometrist",
"state": "MI",
"license": "4901003605",
"primary": true
},
{
"code": "156FX1800X",
"taxonomy_group": "",
"desc": "Technician/Technologist, Optician",
"state": null,
"license": null,
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Rochester, MI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.