Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Deborah Treaster Kessler, PHD

Individual provider Clinical Psychologist · NPI 1235508755

Dr. Deborah Treaster Kessler, PHD is a Clinical Psychologist in Sunbury, Ohio. Qualified in 1993, 33 years ago. Practices with Lewis and Evans LLC, a 6-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
33
Licensed in
OH
In the registry since
2015
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

1448 Green Cook Rd
Sunbury, OH 43074-8707 Not confirmed with CMS for 11 years — call before visiting
Phone: (740) 972-6473
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 4989 (OH)

Record details

NPI number1235508755
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedSeptember 15, 2015
Last updated in NPPESSeptember 15, 2015

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Lewis And Evans Llc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients27
Services billed 386 a service is one billed item, such as a visit, a test or a procedure
Average patient age79

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 Lewis and Evans LLC

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