Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Joseph Robert Zanga Jr., MD

Individual provider Internal Medicine Physician · NPI 1841465366

Dr. Joseph Robert Zanga Jr., MD practises Psychiatry in Durham, North Carolina. Graduated from University of North Carolina at Chapel Hill School of Medicine in 2004, 22 years ago. Practices with Duke Health Integrated Practice Inc, a 3,094-clinician group and accepts Medicare assignment. Licensed in North Carolina.

Years since qualifying
22
Trained at
University of North Carolina at Chapel Hill School of Medicine
Licensed in
NC
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Partly verified

Some contact details are missing from the federal record.

Duke University Hospital Erwin Rd Box 31270
Durham, NC 27710-0001
Phone: (919) 684-8111
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 122422 (NC)
Psychiatry Physician Taxonomy 2084P0800X · Licence 122422 (NC)

Record details

NPI number1841465366
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 25, 2008
Last updated in NPPESSeptember 17, 2025
Certification dateSeptember 17, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolUNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL SCHOOL OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Duke Health Integrated Practice Inc — 3094 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients16
Services billed 36 a service is one billed item, such as a visit, a test or a procedure
Average patient age54

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Duke Health Integrated Practice Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3094 clinicians in the practice; 12 are shown here.

Other providers in Durham