IndividualActive
Mark Perkins, LCSW
NPI 1811331952 · Clinical Social Worker · Yountville, CA
Mark Perkins, LCSW is a Clinical Social Worker provider in Yountville, CA (NPI 1811331952).
Provider details
- NPI number
- 1811331952
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 10513 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(78/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% 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
150 California Dr
Yountville, CA 94558-1418
Phone: (707) 944-4578
Fax: (707) 944-4590
Street-level locationGet directions
Mailing address
150 California Dr
Yountville, CA 94558-1418
Registry dates
- Enumerated
- 2013-04-19
- Last updated
- 2013-04-19
Frequently asked questions
- What is Mark Perkins's NPI number?
- Mark Perkins's National Provider Identifier (NPI) is 1811331952, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Perkins's specialty?
- Mark Perkins is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Perkins located?
- Mark Perkins's practice location on file with NPPES is 150 California Dr, Yountville, CA 94558-1418.
- What is Mark Perkins's phone number?
- The practice phone number listed in the NPPES registry for Mark Perkins is (707) 944-4578.
- Is Mark Perkins's NPI active?
- Yes — Mark Perkins's NPI (1811331952) is active in the NPPES registry as of the last update on 2013-04-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.