IndividualActive
Isobel Marcus
NPI 1740535376 · Clinical Social Worker · Sacramento, CA
Isobel Marcus is a Clinical Social Worker provider in Sacramento, CA (NPI 1740535376).
Provider details
- NPI number
- 1740535376
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 83050 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(79/100 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
2428 K St Ste 3
Sacramento, CA 95816-5002
Phone: (831) 332-0461
Street-level locationGet directions
Mailing address
4891 7th Ave
Sacramento, CA 95820-1504
Registry dates
- Enumerated
- 2012-07-19
- Last updated
- 2020-03-09
- Certified
- 2020-03-09
Frequently asked questions
- What is Isobel Marcus's NPI number?
- Isobel Marcus's National Provider Identifier (NPI) is 1740535376, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isobel Marcus's specialty?
- Isobel Marcus is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Isobel Marcus located?
- Isobel Marcus's practice location on file with NPPES is 2428 K St Ste 3, Sacramento, CA 95816-5002.
- What is Isobel Marcus's phone number?
- The practice phone number listed in the NPPES registry for Isobel Marcus is (831) 332-0461.
- Is Isobel Marcus's NPI active?
- Yes — Isobel Marcus's NPI (1740535376) is active in the NPPES registry as of the last update on 2020-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.