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

Gerald Christopher McCallum, PHD

Individual provider Clinical Psychologist · NPI 1700856614

Gerald Christopher McCallum, PHD is a Clinical Psychologist in Naperville, Illinois. Qualified in 1992, 34 years ago. Practices with Richard Kneip PHD PC, a 243-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
34
Licensed in
IL
In the registry since
2006
Specialties on file
2
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

1555 N Naperville Wheaton Rd Ste 108
Naperville, IL 60563-1557
Phone: (630) 983-8400
Fax: (630) 983-8402
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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 071-004781 (IL)
Clinical Psychologist Taxonomy 103TC0700X · Licence 071004781 (IL)

Record details

NPI number1700856614
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedJanuary 24, 2006
Last updated in NPPESDecember 17, 2018

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1992 (34 years in practice)
Group practice Richard Kneip Phd Pc — 243 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Naperville