Psychologist | General Psychology

Dr. John William Machalaba, PSY.D.

123 Chestnut St Ste 304, Philadelphia, Pennsylvania, 19106-3059

About Dr. John William Machalaba

Dr. John William Machalaba is a psychologist based in Philadelphia, Pennsylvania who is specialized in General Psychology. His current practice location is 123 Chestnut St Ste 304, Philadelphia. Patients can contact him at 215-399-4128. Dr. John William Machalaba, PSY.D., specializes in General Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1467076315.

Dr. John William Machalaba 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

Dr. John William Machalaba'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 Dr. John William Machalaba
Specialization General Psychology
Credentials PSY.D.
Gender Male
Practice Address: 123 Chestnut St Ste 304,
Philadelphia, PA - 19106-3059

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 Number1467076315
NPI Enumeration Date: 05 Jun, 2020
NPI Last Update On: 10 Jun, 2026

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 Dr. John William Machalaba are as mentioned below.

License NumberSpecializationStateStatus
General Psychology PennsylvaniaPrimary

Mailing Address

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

Dr. John William Machalaba
128 Chestnut St Ste 303,
Philadelphia, PA - 19106-3024
Phone: 215-399-4128

Book an Appointment with Dr. John William Machalaba

To schedule an appointment, contact Dr. John William Machalaba at 123 Chestnut St Ste 304, Philadelphia, Pennsylvania or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Dr. John William Machalaba:

Dr. John William Machalaba 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, Dr. John William Machalaba 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.

Dr. John William Machalaba practices at 123 Chestnut St Ste 304, Philadelphia, Pennsylvania, 19106-3059.

To schedule an appointment with Dr. John William Machalaba, please contact the office at 215-399-4128.

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