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MATTHEW WILLIS
NPI 1104275270
Counselor - Addiction (Substance Use Disorder) in Grass Valley, CA

Active since June 08, 2016
180 SIERRA COLLEGE DR, GRASS VALLEY, CA 95945(530) 271-1140(530) 271-7036 Get Directions Write a Review

NPPES record last updated: March 8, 2017. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Matthew Willis NPPES

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

MATTHEW WILLIS (NPI 1104275270) is an individual addiction (substance use disorder) provider in Grass Valley, California, licensed in California (R1236930816) and active in the NPI registry since June 2016.

NPPES Registry Identity

NPI1104275270
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameMATTHEW WILLIS
Location Address180 SIERRA COLLEGE DRGrass Valley, CA 95945-5768
Mailing Address180 Sierra College DrGrass Valley, CA 95945-5768 · (530) 271-1140 · Fax (530) 271-7036
Phone(530) 271-1140
Fax(530) 271-7036
Sole ProprietorNo
Enumeration DateJune 8, 2016
Last NPPES UpdateMarch 8, 2017
✔ NPI 1104275270 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers
Taxonomy Code101YA0400X
License✔ Licensed in CA · R1236930816
180 SIERRA COLLEGE DR, Grass Valley, CA 95945
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Other Providers at the Same Location NPPES 20

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

MR. DANIEL H. PETERS CATC-II
Counselor (Addiction (Substance Use Disorder))
180 SIERRA COLLEGE DR
GRASS VALLEY, CA 95945
Nevada County (530) 273-9541
CHELSEA NESMEJANOW
Licensed Vocational Nurse
180 SIERRA COLLEGE DR
GRASS VALLEY, CA 95945
Nevada County (530) 271-1140
ERIC S SMITH CADC-II
Counselor (Addiction (Substance Use Disorder))
180 SIERRA COLLEGE DR
GRASS VALLEY, CA 95945
Nevada County (530) 273-9541
HEATHER CHRISTOPULOS RADT
Counselor (Addiction (Substance Use Disorder))
180 SIERRA COLLEGE DR
GRASS VALLEY, CA 95945
Nevada County (530) 273-9541
MICHELLE JODOIN
Counselor (Addiction (Substance Use Disorder))
180 SIERRA COLLEGE DR
GRASS VALLEY, CA 95945
Nevada County (530) 271-1140
JENELLE DAILY
Counselor (Addiction (Substance Use Disorder))
180 SIERRA COLLEGE DR
GRASS VALLEY, CA 95945
Nevada County (530) 273-9541
MR. GABRIEL RAMIREZ PA-C
Physician Assistant (Medical)
180 SIERRA COLLEGE DR
GRASS VALLEY, CA 95945
Nevada County (530) 273-9541
LORA LARSEN CADC-II, LAADC
Counselor (Addiction (Substance Use Disorder))
180 SIERRA COLLEGE DR
GRASS VALLEY, CA 95945
Nevada County (530) 273-9541

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 Matthew Willis's NPI number?

The NPI number for Matthew Willis is 1104275270. It was assigned to this individual provider in the NPPES registry on June 8, 2016.

Where is Matthew Willis located?

Matthew Willis practices at 180 Sierra College Dr, Grass Valley, CA 95945. The listed phone number is (530) 271-1140.

What is Matthew Willis's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Matthew Willis was last updated on March 8, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.