Psychiatrist | 55+ years experience

Dr. Carolina Efren Diao, M.D.

3131 Princeton Pike Ste 109, Lawrenceville, New Jersey, 08648-2201

About Dr. Carolina Efren Diao

Dr. Carolina Efren Diao is a psychiatrist based in Lawrenceville, New Jersey with 55 years of experience in Psychiatry. She completed her graduation in 1971. She accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Dr. Carolina Efren Diao is MA71883 for Psychiatry in New Jersey. Her current practice location is 3131 Princeton Pike Ste 109, Lawrenceville. Patients can contact her at 609-633-1500. Dr. Carolina Efren Diao, M.D., specializes in Psychiatry and her NPI number (Unique professional ID assigned by NPPES) is 1275602344.

Dr. Carolina Efren Diao 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. Carolina Efren Diao'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. Carolina Efren Diao
Specialization Psychiatry
Credentials M.D.
Accepts Medicare Assignment Yes
Experience 55+ years
Graduation Year 1971
Gender Female
Practice Address: 3131 Princeton Pike Ste 109,
Lawrenceville, NJ - 08648-2201

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 1153573316
Enrollment ID I20121214000383
NPI Number1275602344
NPI Enumeration Date: 06 Nov, 2006
NPI Last Update On: 26 Jan, 2017

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. Carolina Efren Diao are as mentioned below.

License NumberSpecializationStateStatus
MA71883Psychiatry New JerseyPrimary

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. Carolina Efren Diao is associated with along with the number of members in that group.
Organization Name (Group PAC ID) Members
Arc Mercer Inc (1355571308)5

Other Medical Identifiers

Other professional identifiers associated with Dr. Carolina Efren Diao such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
IdentifierTypeStateIssuer
053746C2DOtherNew JerseyMEDICARE PROVIDER NUMBER
D1053746MedicaidNew Jersey

Mailing Address

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

Dr. Carolina Efren Diao
180 Ewingville Rd,
Ewing, NJ - 08638-2425
Phone: 609-406-0181

Book an Appointment with Dr. Carolina Efren Diao

To schedule an appointment, contact Dr. Carolina Efren Diao at 3131 Princeton Pike Ste 109, Lawrenceville, New Jersey or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Carolina Efren Diao:

Dr. Carolina Efren Diao is a psychiatrist specializing in Psychiatry. She 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. Carolina Efren Diao has approximately 55 years of experience in Psychiatry.

Yes, Dr. Carolina Efren Diao accepts Medicare assignment, meaning the provider participates in Medicare and accepts Medicare-approved amounts for eligible services.

Yes, Dr. Carolina Efren Diao 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. Carolina Efren Diao practices at 3131 Princeton Pike Ste 109, Lawrenceville, New Jersey, 08648-2201.

To schedule an appointment with Dr. Carolina Efren Diao, please contact the office at 609-633-1500.

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