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AMETHYST MEDICAL GROUP
NPI 1194836338
Family Medicine in Nevada City, CA

Active since August 31, 2006CLIA 05D0954194 · Microscopy
590 SEARLS AVE, SUITE A, NEVADA CITY, CA 95959(530) 798-5003(530) 271-2338 Get Directions Write a Review

NPPES record last updated: August 19, 2010. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Amethyst Medical Group NPPES

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

AMETHYST MEDICAL GROUP (NPI 1194836338) is a healthcare organization registered as a family medicine in Nevada City, California and active in the NPI registry since August 2006. The organization holds a CLIA Microscopy certificate valid through November 18, 2026 and lists Winifred Myrna Loesch, President, as its authorized official.

NPPES Registry Identity

NPI1194836338
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameAMETHYST MEDICAL GROUP, INC.
Location Address590 SEARLS AVE, SUITE ANevada City, CA 95959-3043
Mailing Address590 Searls Ave, Suite ANevada City, CA 95959-3043 · (530) 798-5003 · Fax (530) 271-2338
Phone(530) 798-5003
Fax(530) 271-2338
Organization SubpartNo
Authorized OfficialWinifred Myrna LoeschPresident · (530) 798-5003
Enumeration DateAugust 31, 2006
Last NPPES UpdateAugust 19, 2010
✔ NPI 1194836338 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · C42292
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.
590 SEARLS AVE, Nevada City, CA 95959
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Other Names 1

Doing Business AsAmethyst Medical Group

Other Identifiers 3

Medicare UPINA37785CA
Medicare ID-Type UnspecifiedZZZ25085ZCA · Group Id
Other00C422920CA · Ppin

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 SINGLE SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

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) 05D0954194

Amethyst Medical Group, Inc · Grass Valley, CA
Active · expires Nov 18, 2026
CLIA Number05D0954194
Laboratory TypePhysician Office
Certificate Effective DateNovember 19, 2024
Certificate Expiration DateNovember 18, 2026
Laboratory DirectorWinifred M. Loesch MD
Laboratory Phone(530) 798-5003
Laboratory LocationAmethyst Medical Group, Inc123 Margaret Ln Ste C-2, Grass Valley, CA 95945
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 5

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

DR. ROBERT OWEN BARNES M.D.
Family Medicine
590 SEARLS AVE, SUITE A
NEVADA CITY, CA 95959
Nevada County (530) 478-1064
WESTERN SIERRA MEDICAL CLINIC, INC.
Clinic/Center (Federally Qualified Health Center (FQHC))
590 SEARLS AVE
NEVADA CITY, CA 95959
Nevada County (530) 292-3478
NANCY TUSCANO
Physiological Laboratory
590 SEARLS AVE, SUITE 3
NEVADA CITY, CA 95959
Nevada County (530) 265-5902
ANN E HEINRICH LMFT
Marriage & Family Therapist
590 SEARLS AVE, SUITE 5
NEVADA CITY, CA 95959
Nevada County (530) 265-0341
DR. WINIFRED MYRNA LOESCH MD
Family Medicine
590 SEARLS AVE, SUITE A
NEVADA CITY, CA 95959
Nevada County (530) 798-5003

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 Amethyst Medical Group, Inc.'s NPI number?

The NPI number for Amethyst Medical Group, Inc. is 1194836338. It was assigned to this organization in the NPPES registry on August 31, 2006. The provider is doing business as Amethyst Medical Group.

Where is Amethyst Medical Group, Inc. located?

Amethyst Medical Group, Inc. is located at 590 Searls Ave Suite A, Nevada City, CA 95959. The listed phone number is (530) 798-5003.

What is Amethyst Medical Group, Inc.'s specialty?

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

Does Amethyst Medical Group, Inc. hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 05D0954194) is associated with this NPI, valid through November 18, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Amethyst Medical Group, Inc. was last updated on August 19, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.