Sierra Derm INC in Grass Valley, CA
This organization bills under NPI 1700818903, an organization record issued on Jul 7, 2006 with the primary taxonomy Dermatology Physician. Each clinician who works there has their own NPI and license.
Organization recordNPPES, Aug 2026
1700818903
- Legal name
- Sierra Derm INC
- Entity
- Type 2 · organization
- Primary taxonomy
- Dermatology Physician 207N00000X
- Practice location
- 126 GLASSON WAY, Grass Valley, CA 95945
- Phone
- 530-272-2303
- Enumerated
- Jul 7, 2006
- Record updated
- Feb 12, 2013
- Authorized official
- Owner (title as filed)
2 clinicians CMS lists with Sierra Derm in Grass Valley
- Tracey Connell, PAPhysician Assistant1972835973
- Matthew Muellenhoff, DOProcedural Dermatology Physician1740280650
Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.
Checking an organization
- Confirm the business with the California secretary of state.
- Check the HHS-OIG exclusion list for the organization.
- Verify each clinician on their own record and the state license search.
Common questions
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.