IndividualActive
Danielle Mazzei
NPI 1881854420 · Mental Health Counselor · Vallejo, CA
Danielle Mazzei is a Mental Health Counselor provider in Vallejo, CA (NPI 1881854420).
Provider details
- NPI number
- 1881854420
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(81/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
2201 Tuolumne St
Vallejo, CA 94589-2524
Phone: (707) 558-1777
Fax: (707) 558-1770
Street-level locationGet directions
Mailing address
1650 Pine St
Concord, CA 94520-3463
Registry dates
- Enumerated
- 2008-06-16
- Last updated
- 2008-06-16
Frequently asked questions
- What is Danielle Mazzei's NPI number?
- Danielle Mazzei's National Provider Identifier (NPI) is 1881854420, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Danielle Mazzei's specialty?
- Danielle Mazzei is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Danielle Mazzei located?
- Danielle Mazzei's practice location on file with NPPES is 2201 Tuolumne St, Vallejo, CA 94589-2524.
- What is Danielle Mazzei's phone number?
- The practice phone number listed in the NPPES registry for Danielle Mazzei is (707) 558-1777.
- Is Danielle Mazzei's NPI active?
- Yes — Danielle Mazzei's NPI (1881854420) is active in the NPPES registry as of the last update on 2008-06-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.