Christina Mcmahon, CASAC-MASTER
NPI 1598654618 · Addiction (Substance Use Disorder) Counselor · Massapequa Park, NY
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christina Mcmahon, CASAC-MASTER is a Addiction (Substance Use Disorder) Counselor provider in Massapequa Park, NY (NPI 1598654618).
Provider details
- NPI number
- 1598654618
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CASAC-MASTER
- Sole proprietor
- No
- License
- 35120 (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
Under 1 yr in 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
- 2025-07-02
- Last updated
- 2025-07-02
- Certified
- 2025-07-02
Frequently asked questions
- What is Christina Mcmahon's NPI number?
- Christina Mcmahon's National Provider Identifier (NPI) is 1598654618, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christina Mcmahon's specialty?
- Christina Mcmahon is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Christina Mcmahon located?
- Christina Mcmahon's practice location on file with NPPES is 5100 Sunrise Hwy Fl 2, Massapequa Park, NY 11762-2935.
- What is Christina Mcmahon's phone number?
- The practice phone number listed in the NPPES registry for Christina Mcmahon is (631) 696-4357.
- Does Christina Mcmahon accept Medicare?
- Christina Mcmahon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christina Mcmahon's NPI active?
- Yes — Christina Mcmahon's NPI (1598654618) is active in the NPPES registry as of the last update on 2025-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.