Mark Nickolas
NPI 1851656458 · Mental Health Counselor · Lynn, MA
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Nickolas is a Mental Health Counselor provider in Lynn, MA (NPI 1851656458).
Provider details
- NPI number
- 1851656458
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 7926 (MA)
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
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
Mailing address
Registry dates
- Enumerated
- 2012-07-10
- Last updated
- 2026-05-22
- Certified
- 2026-05-22
Frequently asked questions
- What is Mark Nickolas's NPI number?
- Mark Nickolas's National Provider Identifier (NPI) is 1851656458, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Nickolas's specialty?
- Mark Nickolas is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Nickolas located?
- Mark Nickolas's practice location on file with NPPES is 23 Brookline St, Lynn, MA 01902-1807.
- What is Mark Nickolas's phone number?
- The practice phone number listed in the NPPES registry for Mark Nickolas is (617) 501-1083.
- Does Mark Nickolas accept Medicare?
- Mark Nickolas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Nickolas's NPI active?
- Yes — Mark Nickolas's NPI (1851656458) is active in the NPPES registry as of the last update on 2026-05-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.