Sean Tendler, LMHC
NPI 1649787672 · Mental Health Counselor · Commack, NY
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sean Tendler, LMHC is a Mental Health Counselor provider in Commack, NY (NPI 1649787672).
Provider details
- NPI number
- 1649787672
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LMHC
- Sex
- Male
- Sole proprietor
- No
- License
- 008417 (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
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 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 (1)
- 380 N Broadway Ph EJericho, NY 11753-2198Phone: (631) 533-0315Fax: (855) 752-5170
Registry dates
- Enumerated
- 2017-12-28
- Last updated
- 2025-12-06
- Certified
- 2025-12-06
Frequently asked questions
- What is Sean Tendler's NPI number?
- Sean Tendler's National Provider Identifier (NPI) is 1649787672, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean Tendler's specialty?
- Sean Tendler is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Sean Tendler located?
- Sean Tendler's practice location on file with NPPES is 368 Veterans Memorial Hwy Ste 3, Commack, NY 11725-4322.
- What is Sean Tendler's phone number?
- The practice phone number listed in the NPPES registry for Sean Tendler is (631) 533-0315.
- Does Sean Tendler accept Medicare?
- Sean Tendler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sean Tendler's NPI active?
- Yes — Sean Tendler's NPI (1649787672) is active in the NPPES registry as of the last update on 2025-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.