Psychiatrist | 48+ years experience

Dr. John Andrew Rainier Grimaldi Jr., M.D.

221 Longwood Ave, Rf-m56, Boston, Massachusetts, 02115-5804

About Dr. John Andrew Rainier Grimaldi Jr.

Dr. John Andrew Rainier Grimaldi Jr. is a psychiatrist based in Boston, Massachusetts with 48 years of experience in Psychiatry. He completed his graduation from Vanderbilt University School Of Medicine in 1978. He is also affiliated with hospitals like 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. John Andrew Rainier Grimaldi Jr. is 242094 for Psychiatry in Massachusetts. His current practice location is 221 Longwood Ave, Rf-m56, Boston. Patients can contact him at 617-732-6753 or can fax him at 617-732-8703. Dr. John Andrew Rainier Grimaldi Jr., M.D., specializes in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1720027832.

Dr. John Andrew Rainier Grimaldi Jr. specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Practice Information

Dr. John Andrew Rainier Grimaldi Jr.'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 Andrew Rainier Grimaldi Jr.
Specialization Psychiatry
Credentials M.D.
Accepts Medicare Assignment Yes
Experience 48+ years
Medical School Attended Vanderbilt University School Of Medicine
Graduation Year 1978
Gender Male
Practice Address: 221 Longwood Ave, Rf-m56
Boston, MA - 02115-5804
Fax 617-732-8703

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.

PAC ID 1658472071
Enrollment ID I20091208000252
NPI Number1720027832
NPI Enumeration Date: 05 Jun, 2006
NPI Last Update On: 24 Jun, 2012

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 Andrew Rainier Grimaldi Jr. are as mentioned below.

License NumberSpecializationStateStatus
242094Psychiatry MassachusettsPrimary

Hospital Affiliation

Doctors are affiliated to many hospitals whom they worked with in the past or are presently working with. One doctor can be affiliated to four to five hospitals at a time.
Hospital Name (CCN) StateHospital Type
(220110)Boston, MAAcute Care Hospital

Group Practice

Group practices are practice of medicine by a group of healthcare professionals who share their premises and other resources. Following list states all the group name with which Dr. John Andrew Rainier Grimaldi Jr. is associated with along with the number of members in that group.
Organization Name (Group PAC ID) Members
Brigham And Womens Physicians Organization Inc (3870405988)2292

Other Medical Identifiers

Other professional identifiers associated with Dr. John Andrew Rainier Grimaldi Jr. such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
9724541MedicaidMassachusetts

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 Andrew Rainier Grimaldi Jr.
111 Cypress St,
Brookline, MA - 02445-6002
Phone: 857-307-0896

Book an Appointment with Dr. John Andrew Rainier Grimaldi Jr.

To schedule an appointment, contact Dr. John Andrew Rainier Grimaldi Jr. at 221 Longwood Ave, Rf-m56, Boston, Massachusetts or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. John Andrew Rainier Grimaldi Jr.:

Dr. John Andrew Rainier Grimaldi Jr. is a psychiatrist specializing in Psychiatry. He specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Dr. John Andrew Rainier Grimaldi Jr. completed his education (M.D.) from Vanderbilt University School Of Medicine in 1978.

Dr. John Andrew Rainier Grimaldi Jr. has approximately 48 years of experience in Psychiatry.

Yes, Dr. John Andrew Rainier Grimaldi Jr. accepts Medicare assignment, meaning the provider participates in Medicare and accepts Medicare-approved amounts for eligible services.

Yes, Dr. John Andrew Rainier Grimaldi Jr. 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 Andrew Rainier Grimaldi Jr. practices at 221 Longwood Ave, Rf-m56, Boston, Massachusetts, 02115-5804.

To schedule an appointment with Dr. John Andrew Rainier Grimaldi Jr., please contact the office at 617-732-6753.

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