Dr Carolina Efren Diao, MD - Medicare Psychiatry in Lawrenceville, NJ

Dr Carolina Efren Diao, MD is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Lawrenceville, New Jersey. She graduated from medical school in 1971 and has 53 years of diverse experience with area of expertise as Psychiatry. She is a member of the group practice Arc Mercer Inc and her current practice location is 3131 Princeton Pike Ste 109, Lawrenceville, New Jersey. You can reach out to her office (for appointments etc.) via phone at (609) 633-1500.

Dr Carolina Efren Diao is licensed to practice in New Jersey (license number MA71883) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1275602344.

Contact Information

Dr Carolina Efren Diao, MD
3131 Princeton Pike Ste 109,
Lawrenceville, NJ 08648-2201
(609) 633-1500
Not Available

Map and Direction




Physician's Profile

Full NameDr Carolina Efren Diao
GenderFemale
SpecialityPsychiatry
Experience53 Years
Location3131 Princeton Pike Ste 109, Lawrenceville, New Jersey
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Carolina Efren Diao graduated from medical school in 1971
  NPI Data:
  • NPI Number: 1275602344
  • Provider Enumeration Date: 11/06/2006
  • Last Update Date: 01/26/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 1153573316
  • Enrollment ID: I20121214000383

Medical Identifiers

Medical identifiers for Dr Carolina Efren Diao such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1275602344NPI-NPPES
053746C2DOtherNJMEDICARE PROVIDER NUMBER
D1053746MedicaidNJ

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry MA71883 (New Jersey)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Arc Mercer Inc13555713085

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Carolina Efren Diao allows following entities to bill medicare on her behalf.
Entity NameArc Mercer Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518262203
PECOS PAC ID: 1355571308
Enrollment ID: O20140313000807
Entity NameAnother Door Opens Recovery Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669736757
PECOS PAC ID: 4981968609
Enrollment ID: O20180504002107

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Carolina Efren Diao is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Carolina Efren Diao, MD
180 Ewingville Rd,
Ewing, NJ 08638-2425

Ph: (609) 406-0181
Dr Carolina Efren Diao, MD
3131 Princeton Pike Ste 109,
Lawrenceville, NJ 08648-2201

Ph: (609) 633-1500

Reviews and Comments


Psychiatry & Neurology Doctors in Lawrenceville, NJ

Dr. Sharmila Sinha, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 136 Franklin Corner Rd, Lawrenceville, NJ 08648
Phone: 609-658-5615    Fax: 609-838-9159
Aissa Alexeeva, MD
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 3120 Princeton Pike Fl 2, Lawrenceville, NJ 08648
Phone: 609-896-1701    Fax: 609-896-3735
Anitha Nimma, MD
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 3120 Princeton Pike Fl 2, Lawrenceville, NJ 08648
Phone: 609-896-1701    Fax: 609-896-3735
Dario Vittorio La Rocca, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 2999 Princeton Pike, Suite 5, Lawrenceville, NJ 08648
Phone: 609-406-1754    
Sarala C Mundassery, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 69 Woodmont Dr, Lawrenceville, NJ 08648
Phone: 609-882-3999    Fax: 609-921-9411
Dr. Nidhi Singhal Modi, MD
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 3120 Princeton Pike Fl 2, Lawrenceville, NJ 08648
Phone: 609-896-1701    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.