Active NPI
Sierra Nevada Primary Care Physicians a Medical Corporation
- Family Medicine Physician
- Grass Valley, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- 20A7940
- Legal business name
- SIERRA NEVADA PRIMARY CARE PHYSICIANS A MEDICAL CORPORATION
- Practice address
- 140 Litton Dr Ste 100
Grass Valley, CA 95945-5078 - Phone
- (530) 477-4016
- Fax
- (530) 477-4018
- NPI assigned
- Jul 27, 2006
- 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
- Mara Berezniak, DO
- Title
- DO
- Phone
- (530) 432-7023
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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Family Medicine Physician | 207Q00000X | 20A7940 | CA | Primary |
| Family Medicine Physician | 207Q00000X | C52481 | CA | |
| Adult Health Nurse Practitioner | 363LA2200X | 1730163791 | CA |
Addresses
Primary practice location
140 Litton Dr Ste 100
Grass Valley, CA 95945-5078
Mailing address
PO Box 459001
Grass Valley, CA 95945-9101
Phone (530) 272-9788
Other names 1
- Sierra Care Physicians, AMC
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
Enrollment records 1
National Provider Directory
National Provider Directory- Tax ID family
- Sierra Care Physicians
Other organizations with this tax ID 4
Organizations that report the same tax identification number in the National Provider Directory.
-
- Pediatrics Physician
- Grass Valley, CA
- NPI 1235145608
-
- Pediatrics Physician
- Grass Valley, CA
- NPI 1548458839
-
- Family Medicine Physician
- Grass Valley, CA
- NPI 1699719419
-
- Nurse Practitioner
- Penn Valley, CA
- NPI 1952621328
Locations
11010 Combie Rd
Ste 200
Auburn, CA 95602
Phone (530) 268-1234
1345 Whispering Pines Ln
Grass Valley, CA 95945
Phone (530) 265-7895
Networks
- BSC 65 PLUS INDIVIDUAL MAPD
Practitioners & affiliated clinicians
Practitioners 8
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.
-
- Family Medicine Physician
- Penn Valley, CA
- NPI 1770535585
-
- Family Medicine Physician
- Penn Valley, CA
- NPI 1902911845
-
- Community Health Registered Nurse
- Grass Valley, CA
- NPI 1497977219
-
- Family Medicine Physician
- Grass Valley, CA
- NPI 1467400853
-
- Family Medicine Physician
- McKinleyville, CA
- NPI 1073635967
-
- Pediatrics Physician
- Grass Valley, CA
- NPI 1922023845
-
- Pediatrics Physician
- Grass Valley, CA
- NPI 1013932953
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1153958400000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1761264000000",
"number": "1427072008",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 459001",
"city": "GRASS VALLEY",
"state": "CA",
"postal_code": "959459101",
"telephone_number": "530-272-9788",
"fax_number": "530-272-9796"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "140 LITTON DR STE 100",
"city": "GRASS VALLEY",
"state": "CA",
"postal_code": "959455078",
"telephone_number": "530-477-4016",
"fax_number": "530-477-4018"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "SIERRA NEVADA PRIMARY CARE PHYSICIANS A MEDICAL CORPORATION",
"organizational_subpart": "NO",
"enumeration_date": "2006-07-27",
"last_updated": "2025-10-24",
"certification_date": "2025-10-24",
"status": "A",
"authorized_official_last_name": "BEREZNIAK",
"authorized_official_first_name": "MARA",
"authorized_official_title_or_position": "DO",
"authorized_official_telephone_number": "530-432-7023",
"authorized_official_credential": "DO"
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
"desc": "Family Medicine",
"state": "CA",
"license": "20A7940",
"primary": true
},
{
"code": "207Q00000X",
"taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
"desc": "Family Medicine",
"state": "CA",
"license": "C52481",
"primary": false
},
{
"code": "363LA2200X",
"taxonomy_group": "193400000X MULTIPLE SINGLE SPECIALTY GROUP",
"desc": "Nurse Practitioner, Adult Health",
"state": "CA",
"license": "1730163791",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"organization_name": "Sierra Care Physicians, AMC",
"code": "3",
"type": "Doing Business As"
}
]
}
Other providers in Grass Valley, CA
- Sierra Nevada Neuropsychology Inc.
- Sierra Nevada Pathology Medical Group
- Sierra Nevada Primary Care
- Sierra Nevada Primary Care
- Sierra Nevada Primary Care
- Sierra Nevada Urology Medical Associates, Inc.
- Sierra Oral & Maxillofacial Surgery, Inc
- Sierra Outpatient Anesthesia Inc
- Sierra Physical Therapy & Rehab Inc
- Sierra Physicians Inc.
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 24, 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.