Mark Colterjohn, LCSW
NPI 1356457642 · Clinical Social Worker · New York, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Colterjohn, LCSW is a Clinical Social Worker provider in New York, NY (NPI 1356457642).
Provider details
- NPI number
- 1356457642
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 070239 (NY)
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
3 documented practice locations
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
Additional practice locations (2)
- 672 Fulton St Apt 3bBrooklyn, NY 11217-1569Phone: (646) 872-5451
- 920 Broadway8th Floor, Suite #2New York, NY 10010-6004Phone: (646) 872-5451
Registry dates
- Enumerated
- 2006-08-21
- Last updated
- 2025-04-25
- Certified
- 2025-04-25
Frequently asked questions
- What is Mark Colterjohn's NPI number?
- Mark Colterjohn's National Provider Identifier (NPI) is 1356457642, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Colterjohn's specialty?
- Mark Colterjohn is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Colterjohn located?
- Mark Colterjohn's practice location on file with NPPES is 353 Lexington Ave Ste 300, New York, NY 10016-0941.
- What is Mark Colterjohn's phone number?
- The practice phone number listed in the NPPES registry for Mark Colterjohn is (646) 872-5451.
- Does Mark Colterjohn accept Medicare?
- Mark Colterjohn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Colterjohn's NPI active?
- Yes — Mark Colterjohn's NPI (1356457642) is active in the NPPES registry as of the last update on 2025-04-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.