Active NPI
Layne R. Christensen Optometric Corporation
- Optometrist
- Grass Valley, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Optometrist
- Legal business name
- LAYNE R. CHRISTENSEN OPTOMETRIC CORPORATION
- Practice address
- 2116 Nevada City Hwy
Grass Valley, CA 95945-7702 - Phone
- (530) 273-4451
- Fax
- (530) 272-5408
- NPI assigned
- Jan 15, 2007
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Layne R. Christensen
- Title
- Optometrist
- Phone
- (530) 273-4451
Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Optometrist | 152W00000X | Primary |
Addresses
Primary practice location
2116 Nevada City Hwy
Grass Valley, CA 95945-7702
Mailing address
2116 Nevada City Hwy
Grass Valley, CA 95945-7702
Phone (530) 273-4451
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
Enrollment records 1
National Provider Directory
National Provider DirectoryLocations
10508 Combie Rd
Auburn, CA 95602
Phone (530) 268-2020
2116 Nevada City Hwy
Grass Valley, CA 95945
Phone (530) 273-4451
290 Sierra College Dr
Ste C
Grass Valley, CA 95945
Phone (530) 273-4451
Practitioners & affiliated clinicians
Practitioners 3
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.
-
- Optometrist
- Grass Valley, CA
- NPI 1730125477
-
- Optometrist
- El Dorado Hills, CA
- NPI 1881889137
-
- Optometrist
- Cool, CA
- NPI 1477508067
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1168819200000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1750032000000",
"number": "1841341195",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2116 NEVADA CITY HWY",
"city": "GRASS VALLEY",
"state": "CA",
"postal_code": "959457702",
"telephone_number": "530-273-4451",
"fax_number": "530-268-2054"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2116 NEVADA CITY HWY",
"city": "GRASS VALLEY",
"state": "CA",
"postal_code": "959457702",
"telephone_number": "530-273-4451",
"fax_number": "530-272-5408"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "LAYNE R. CHRISTENSEN OPTOMETRIC CORPORATION",
"organizational_subpart": "NO",
"enumeration_date": "2007-01-15",
"last_updated": "2025-06-16",
"certification_date": "2025-06-16",
"status": "A",
"authorized_official_last_name": "CHRISTENSEN",
"authorized_official_first_name": "LAYNE",
"authorized_official_middle_name": "R.",
"authorized_official_title_or_position": "OPTOMETRIST",
"authorized_official_telephone_number": "530-273-4451"
},
"taxonomies": [
{
"code": "152W00000X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Optometrist",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Grass Valley, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 16, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.