Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Margot Gay Mahan, PSYD

Individual provider Clinical Psychologist · NPI 1669568077

Dr. Margot Gay Mahan, PSYD is a Clinical Psychologist in Naperville, Illinois. Qualified in 1999, 27 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
27
Licensed in
IL
In the registry since
2006
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

1555 Naperville-Wheaton Rd Ste 113
Naperville, IL 60563
Phone: (312) 719-1360
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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 071-0066277 (IL)

Record details

NPI number1669568077
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorYes
NPI enumeratedOctober 4, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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