Markus Mcallister
NPI 1205639119 · Addiction (Substance Use Disorder) Counselor · Mount Kisco, NY
Markus Mcallister is a Addiction (Substance Use Disorder) Counselor provider in Mount Kisco, NY (NPI 1205639119).
Provider details
- NPI number
- 1205639119
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 40260 (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
1 yr 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
- 2025-03-28
- Last updated
- 2025-03-28
- Certified
- 2025-03-28
Frequently asked questions
- What is Markus Mcallister's NPI number?
- Markus Mcallister's National Provider Identifier (NPI) is 1205639119, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Markus Mcallister's specialty?
- Markus Mcallister is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Markus Mcallister located?
- Markus Mcallister's practice location on file with NPPES is 94 Maple Ave, Mount Kisco, NY 10549-2108.
- What is Markus Mcallister's phone number?
- The practice phone number listed in the NPPES registry for Markus Mcallister is (914) 666-0191.
- Is Markus Mcallister's NPI active?
- Yes — Markus Mcallister's NPI (1205639119) is active in the NPPES registry as of the last update on 2025-03-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.