Dr. Paul John Callahan
PSY.D. | Clinical Child & Adolescent Psychologist | 34+ years Exp
2557 Massachusetts Ave, Cambridge
Massachusetts, 02140-1020
781-643-1020 Maps & DirectionsDr. Paul John Callahan is a Cambridge, Massachusetts based psychologist with 34 years of experience in Clinical Child & Adolescent Psychology. He completed his graduation in 1991. He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Dr. Paul John Callahan is 6376 for Clinical Child & Adolescent Psychology in Massachusetts. His current practice location is 2557 Massachusetts Ave, Cambridge. Patients can reach him at 781-643-1020. Dr. Paul John Callahan is PSY.D. in Clinical Child & Adolescent Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1114062239.
Dr. Paul John Callahan analyse the cognitive, social and emotional development of children. Typically, he look at development from the prenatal period through adolescence. Some of the traditional areas of interest include genetics, language development, learning disabilities, personality, gender roles, cognitive development, sexual development and social growth.
Clinical Child Psychologist responsibilities includes task like assessing and treating learning or developmental disabilities or delays; Working with children and their caregivers to manage behavioral issues; Administering psychological tests; Conducting scientific research on childhood development; Working with a health care team to create a unique treatment plan for a client.
Complete Profile:
Dr. Paul John Callahan speciality, credentials, practice address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointment.
| Name: | Dr. Paul John Callahan |
| Specialization: | Clinical Child & Adolescent Psychology |
| Gender: | Male |
| Credentials: | PSY.D. |
| Experience: | 34+ years |
| Medical School Attended: | Other |
| Graduation Year: | 1991 |
| Accepts Medicare Assignment: | Yes |
| Practice Address: | 2557 Massachusetts Ave, Cambridge, Massachusetts, 02140-1020 |
| Phone: | 781-643-1020 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| PAC ID: | 6103986385 |
| Enrollment ID: | I20081120000901 |
| NPI Number: | 1114062239 |
| NPI Enumeration Date: | 20 Feb, 2007 |
| NPI Last Update On: | 08 Jul, 2007 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Paul John Callahan are as mentioned below.
| License Number | Specialization | State | Status | |
| 6376 | Clinical Child & Adolescent Psychology | Massachusetts | Primary | |
Group Practice:
Group practices are practice of medicine by a group of physicians who share their premises and other resources. Following list states all the group name
with which Dr. Paul John Callahan is associated with along with the number of members in that group.
| Organization Name (Group PAC ID) | Members |
| Child And Family Psychological Services Pllc (5991763823) | 173 |
Other Medical Identifiers:
Other legacy medical identifiers associated with Dr. Paul John Callahan such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
| Identifier | Type | State | Issuer |
| W05323 | Other | Massachusetts | BCBS ID # |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Dr. Paul John Callahan 26 Stevens Ter, Arlington, Massachusetts |
| Zip: | 02476-7720 |
| Phone Number: | 781-643-1531 |
Patients can reach Dr. Paul John Callahan at
2557 Massachusetts Ave, Cambridge, Massachusetts or can
call to book an appointment on 781-643-1020.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.