Mark Jacobsen, PH.D., LICSW
NPI 1578732863 · Clinical Social Worker · Washington, DC
Mark Jacobsen, PH.D., LICSW is a Clinical Social Worker provider in Washington, DC (NPI 1578732863).
Provider details
- NPI number
- 1578732863
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- PH.D., LICSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- LC303458 (DC)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
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
18 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
- 2008-02-21
- Last updated
- 2008-02-21
Frequently asked questions
- What is Mark Jacobsen's NPI number?
- Mark Jacobsen's National Provider Identifier (NPI) is 1578732863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Jacobsen's specialty?
- Mark Jacobsen is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Jacobsen located?
- Mark Jacobsen's practice location on file with NPPES is 2607 Connecticut Ave Nw, Washington, DC 20008-1522.
- What is Mark Jacobsen's phone number?
- The practice phone number listed in the NPPES registry for Mark Jacobsen is (703) 521-1710.
- Is Mark Jacobsen's NPI active?
- Yes — Mark Jacobsen's NPI (1578732863) is active in the NPPES registry as of the last update on 2008-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.