Clark Marshall, M.S.
NPI 1770784282 · Marriage & Family Therapist · Carmichael, CA
Clark Marshall, M.S. is a Marriage & Family Therapist provider in Carmichael, CA (NPI 1770784282).
Provider details
- NPI number
- 1770784282
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- M.S.
- Sex
- Male
- Sole proprietor
- No
- License
- 50902 (CA)
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
19 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
Mailing address
Registry dates
- Enumerated
- 2007-05-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is Clark Marshall's NPI number?
- Clark Marshall's National Provider Identifier (NPI) is 1770784282, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clark Marshall's specialty?
- Clark Marshall is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Clark Marshall located?
- Clark Marshall's practice location on file with NPPES is 6147 Sutter Ave, Carmichael, CA 95608-2738.
- What is Clark Marshall's phone number?
- The practice phone number listed in the NPPES registry for Clark Marshall is (916) 971-7640.
- Is Clark Marshall's NPI active?
- Yes — Clark Marshall's NPI (1770784282) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.