Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Alexander Leffler

Individual provider Social Worker · NPI 1255692430

Alexander Leffler is a Clinical Social Worker in Brooklyn, New York. Qualified in 2011, 15 years ago. Practices with Lakewood Resource and Referral Center Inc, a 107-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
15
Licensed in
NY
In the registry since
2012
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Practice location Address checks out

1273 53rd St
Brooklyn, NY 11219-3865 Not confirmed with CMS for 14 years — call before visiting
Phone: (212) 632-4400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 086093-1 (NY)

Record details

NPI number1255692430
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedJune 4, 2012
Last updated in NPPESJune 4, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Lakewood Resource And Referral Center Inc — 107 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Colleagues at Lakewood Resource and Referral Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 107 clinicians in the practice; 12 are shown here.

Other providers in Brooklyn