IndividualActive
Justine Mahler, PSY.D.
NPI 1356219133 · Clinical Psychologist · Commack, NY
Justine Mahler, PSY.D. is a Clinical Psychologist provider in Commack, NY (NPI 1356219133).
Provider details
- NPI number
- 1356219133
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Female
- Sole proprietor
- No
- License
- P139348 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(54/100 index)
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
283 Commack Rd Ste 210
Commack, NY 11725-3400
Phone: (631) 901-5253
Street-level locationGet directions
Mailing address
283 Commack Rd Ste 210
Commack, NY 11725-3400
Registry dates
- Enumerated
- 2025-10-24
- Last updated
- 2025-10-24
- Certified
- 2025-10-24
Frequently asked questions
- What is Justine Mahler's NPI number?
- Justine Mahler's National Provider Identifier (NPI) is 1356219133, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justine Mahler's specialty?
- Justine Mahler is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Justine Mahler located?
- Justine Mahler's practice location on file with NPPES is 283 Commack Rd Ste 210, Commack, NY 11725-3400.
- What is Justine Mahler's phone number?
- The practice phone number listed in the NPPES registry for Justine Mahler is (631) 901-5253.
- Is Justine Mahler's NPI active?
- Yes — Justine Mahler's NPI (1356219133) is active in the NPPES registry as of the last update on 2025-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.