SIERRA NEVADA PRIMARY CARE PHYSICIANS A MEDICAL CORPORATION
NPI 1427072008
Family Medicine in Grass Valley, CA

Active since July 27, 2006CLIA Certified · 2 labs
140 LITTON DR STE 100, GRASS VALLEY, CA 95945(530) 477-4016(530) 477-4018 Get Directions Write a Review

NPPES record last updated: October 24, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Sierra Nevada Primary Care Physicians A Medical Corporation NPPES

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

SIERRA NEVADA PRIMARY CARE PHYSICIANS A MEDICAL CORPORATION (NPI 1427072008), doing business as Sierra Care Physicians, Amc, is a healthcare organization registered as a family medicine in Grass Valley, California and active in the NPI registry since July 2006. The organization holds 2 active CLIA laboratory certificates and lists Mara Berezniak, Do, as its authorized official.

NPPES Registry Identity

NPI1427072008
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameSIERRA NEVADA PRIMARY CARE PHYSICIANS A MEDICAL CORPORATION
Location Address140 LITTON DR STE 100Grass Valley, CA 95945-5078
Mailing AddressPo Box 459001Grass Valley, CA 95945-9101 · (530) 272-9788 · Fax (530) 272-9796
Fax(530) 477-4018
Organization SubpartNo
Authorized OfficialMara BerezniakDo · (530) 432-7023
Enumeration DateJuly 27, 2006
Last NPPES UpdateOctober 24, 2025
NPPES CertifiedOctober 24, 2025
NPI 1427072008 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses Licensed in CA · 20A7940 Licensed in CA · C52481
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedNurse Practitioner · Adult HealthTaxonomy 363LA2200X · License 1730163791 (CA)
140 LITTON DR STE 100, Grass Valley, CA 95945

Other Names 1

Doing Business AsSierra Care Physicians, Amc

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA 2

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 05D0691146

Sierra Nevada Primary Care Physicians, A Med Corp · Grass Valley, CA
Active · expires Aug 31, 2026
CLIA Number05D0691146
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2024
Certificate Expiration DateAugust 31, 2026
Laboratory DirectorMara Berezniak Do
Laboratory Phone(530) 477-4016
Laboratory LocationSierra Nevada Primary Care Physicians, A Med Corp140 Litton Drive Ste 100 & 110, Grass Valley, CA 95945
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 05D0991196

Sierra Nevada Primary Care Physicians · Penn Valley, CA
Active · expires Sep 12, 2027
CLIA Number05D0991196
Laboratory TypePhysician Office
Certificate Effective DateSeptember 13, 2025
Certificate Expiration DateSeptember 12, 2027
Laboratory DirectorMara Berezniak Do
Laboratory Phone(530) 477-4016
Laboratory LocationSierra Nevada Primary Care Physicians11400 Pleasant Valley Road, Penn Valley, CA 95946
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Pediatrics
140 LITTON DR STE 100
GRASS VALLEY, CA 95945
Pediatrics (Adolescent Medicine)
140 LITTON DR STE 100
GRASS VALLEY, CA 95945
Pediatrics
140 LITTON DR STE 100
GRASS VALLEY, CA 95945
Marriage & Family Therapist
140 LITTON DR STE 100
GRASS VALLEY, CA 95945
Pediatrics
140 LITTON DR STE 100
GRASS VALLEY, CA 95945
Clinic/Center (Federally Qualified Health Center (FQHC))
140 LITTON DR STE 100
GRASS VALLEY, CA 95945
Pediatrics
140 LITTON DR STE 100
GRASS VALLEY, CA 95945

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 Sierra Nevada Primary Care Physicians A Medical Corporation's NPI number?

The NPI number for Sierra Nevada Primary Care Physicians A Medical Corporation is 1427072008. It was assigned to this organization in the NPPES registry on July 27, 2006. The provider is doing business as Sierra Care Physicians, AMC.

Where is Sierra Nevada Primary Care Physicians A Medical Corporation located?

Sierra Nevada Primary Care Physicians A Medical Corporation is located at 140 Litton Dr Ste 100, Grass Valley, CA 95945. The listed phone number is (530) 477-4016.

What is Sierra Nevada Primary Care Physicians A Medical Corporation's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Does Sierra Nevada Primary Care Physicians A Medical Corporation hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for Sierra Nevada Primary Care Physicians A Medical Corporation was last updated on October 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.