About the Practice
Whether you need a pediatrician, advanced cardiology services, OBGYN or cutting-edge neurological care, our vast network of primary and specialty care providers offers unparalleled expertise, all in one clinic. As a convenience to our patients, Hattiesburg Clinic offers walk-in flu shots Monday through Friday, from 8 a.m. With over 40 medical specialties, we are committed to caring for the whole patient.
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Practice Context in IntroTherapy
- • IntroTherapy lists 148 mental health practices in Hattiesburg. John R. Harsh, PhD is one of them.
- • 1,712 practices statewide in Mississippi are tracked in our directory.
- • Typical psychologist compensation in Mississippi: $68,000 – $128,000 (median $78,000). Source: BLS OEWS, state cost-of-labor adjusted.
Data compiled from U.S. state licensing boards, NPI public registry, and verified practice listings. Mental health is a YMYL topic — we prioritize licensed, verified providers only. Methodology & sources · Updated July 2026.
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John R. Harsh, PhD