Matthew Grannan
NPI 1952766131 · Mental Health Counselor · Mount Shasta, CA
Matthew Grannan is a Mental Health Counselor provider in Mount Shasta, CA (NPI 1952766131).
Provider details
- NPI number
- 1952766131
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-12-15
- Last updated
- 2015-12-15
Frequently asked questions
- What is Matthew Grannan's NPI number?
- Matthew Grannan's National Provider Identifier (NPI) is 1952766131, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Grannan's specialty?
- Matthew Grannan is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Matthew Grannan located?
- Matthew Grannan's practice location on file with NPPES is 301 Chestnut St, Mount Shasta, CA 96067-2214.
- What is Matthew Grannan's phone number?
- The practice phone number listed in the NPPES registry for Matthew Grannan is (530) 926-1436.
- Is Matthew Grannan's NPI active?
- Yes — Matthew Grannan's NPI (1952766131) is active in the NPPES registry as of the last update on 2015-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.