Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Joanne Mayer, MSSA, LISW-S, LCSW

Individual provider Clinical Social Worker · NPI 1346265865

Joanne Mayer, MSSA, LISW-S, LCSW is a Clinical Social Worker in King of Prussia, Pennsylvania. Qualified in 1998, 28 years ago. Practices with Delaware County Professional Services, Inc, a 275-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Ohio and Pennsylvania.

Years since qualifying
28
Licensed in
OH, PA
In the registry since
2006
Specialties on file
2
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

1005 W 9th Ave Ste B
King of Prussia, PA 19406-1202
Phone: (610) 892-3800
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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 CW018672 (PA)
Clinical Social Worker Taxonomy 1041C0700X · Licence I-0008960 (OH)

Record details

NPI number1346265865
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSSA , LISW-S , LCSW
Sole proprietorYes
NPI enumeratedJuly 13, 2006
Last updated in NPPESApril 9, 2024
Certification dateApril 9, 2024

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Delaware County Professional Services, Inc — 275 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients13
Services billed 231 a service is one billed item, such as a visit, a test or a procedure
Average patient age65

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Delaware County Professional Services, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 275 clinicians in the practice; 12 are shown here.

Other providers in King of Prussia