Mark Segal, LCSW-C
NPI 1154591527 · Clinical Social Worker · Crofton, MD
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Segal, LCSW-C is a Clinical Social Worker provider in Crofton, MD (NPI 1154591527).
Provider details
- NPI number
- 1154591527
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- 11838 (MD)
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
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
- 2008-03-02
- Last updated
- 2012-11-09
Frequently asked questions
- What is Mark Segal's NPI number?
- Mark Segal's National Provider Identifier (NPI) is 1154591527, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Segal's specialty?
- Mark Segal is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Segal located?
- Mark Segal's practice location on file with NPPES is 931 Truro Ln, Crofton, MD 21114-1203.
- What is Mark Segal's phone number?
- The practice phone number listed in the NPPES registry for Mark Segal is (443) 292-4164.
- Does Mark Segal accept Medicare?
- Mark Segal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Segal's NPI active?
- Yes — Mark Segal's NPI (1154591527) is active in the NPPES registry as of the last update on 2012-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.