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

Gary L Vaughn, PHD

Individual provider Psychologist · NPI 1578583670

Gary L Vaughn, PHD is a Clinical Psychologist in Anderson, Indiana. Qualified in 1990, 36 years ago. Practices with St Vincent Medical Group Inc, a 727-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
36
Licensed in
IN
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

141 W 22nd St
Anderson, IN 46016-4304
Phone: (765) 641-7100
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 20040589 (IN)

Record details

NPI number1578583670
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJuly 20, 2006
Last updated in NPPESMay 23, 2022
Certification dateMay 23, 2022

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice St Vincent Medical Group Inc — 727 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 patients33
Services billed 233 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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 St Vincent Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 727 clinicians in the practice; 12 are shown here.

Other providers in Anderson