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

Mr. Kenneth Greiff, LCSW

Individual provider Clinical Social Worker · NPI 1033367297

Mr. Kenneth Greiff, LCSW is a Clinical Social Worker in Philadelphia, Pennsylvania. Qualified in 2004, 22 years ago. Practices with Harmony Mental Health Services Inc, a 4-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
22
Licensed in
PA
In the registry since
2008
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

2400 Chestnut St Harmony Mental Health Services Inc
Philadelphia, PA 19103 Not confirmed with CMS for 17 years — call before visiting
Phone: (215) 568-5903
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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 15122138 (PA)

Record details

NPI number1033367297
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedAugust 29, 2008
Last updated in NPPESJune 5, 2009

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Harmony Mental Health Services Inc. — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Colleagues at Harmony Mental Health Services Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Philadelphia