Psychologist | General Psychology

John Constantine, PHD

120 W Mckenzie Rd, Suite F, Greenfield, Indiana, 46140-1072

About John Constantine

John Constantine is a psychologist based in Greenfield, Indiana who is specialized in General Psychology. Active license number of John Constantine is 20090254A for General Psychology in Indiana. His current practice location is 120 W Mckenzie Rd, Suite F, Greenfield. Patients can contact him at 317-468-6200 or can fax him at 317-468-6201. John Constantine, PHD, specializes in General Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1386636595.

John Constantine is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, he performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. He can diagnose and treat mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability by psycheducational evaluation, therapy, remediation, and consultation.

Practice Information

John Constantine's specialty, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name John Constantine
Specialization General Psychology
Credentials PHD
Gender Male
Practice Address: 120 W Mckenzie Rd, Suite F
Greenfield, IN - 46140-1072
Fax 317-468-6201

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to healthcare providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1386636595
NPI Enumeration Date: 16 Aug, 2005
NPI Last Update On: 08 Oct, 2010

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialties in the same state or different states. Related medical licenses for John Constantine are as mentioned below.

License NumberSpecializationStateStatus
20090254AGeneral Psychology IndianaPrimary
20090254APsychiatry & Neurology IndianaSecondary

Other Medical Identifiers

Other professional identifiers associated with John Constantine such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
000000275567OtherIndianaANTHEM PIN#
100232230MedicaidIndiana
7800235OtherIndianaAETNA PIN#
200459330AMedicaidIndiana

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

John Constantine
Po Box 129,
Greenfield, IN - 46140-0129
Phone: 317-468-6270
Fax: 317-468-6268

Book an Appointment with John Constantine

To schedule an appointment, contact John Constantine at 120 W Mckenzie Rd, Suite F, Greenfield, Indiana or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about John Constantine:

John Constantine is a psychologist specializing in General Psychology. He is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, he performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. He can diagnose and treat mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability by psycheducational evaluation, therapy, remediation, and consultation.

Yes, John Constantine is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
*Availability may change. Please contact the office directly to ask about appointments.

John Constantine practices at 120 W Mckenzie Rd, Suite F, Greenfield, Indiana, 46140-1072.

To schedule an appointment with John Constantine, please contact the office at 317-468-6200.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.