Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Diane Marsha Sandler-Derby, MSW, CASAC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1376634634

Diane Marsha Sandler-Derby, MSW, CASAC is a Clinical Social Worker in Wantagh, New York. Qualified in 1985, 41 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
41
Licensed in
NY
In the registry since
2006
Specialties on file
2
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

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Practice location Address checks out

42 Daffodil Ln
Wantagh, NY 11793-1802
Phone: (516) 783-8374
Fax: (516) 783-0220
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence R033648 (NY)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 4882 (NY)

Record details

NPI number1376634634
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW , CASAC
Sole proprietorYes
NPI enumeratedSeptember 28, 2006
Last updated in NPPESOctober 15, 2010

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1985 (41 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Other providers in Wantagh