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

John Andrew Kallianos, MD

Individual provider Internal Medicine Physician · NPI 1245231588

John Andrew Kallianos, MD is an Internal Medicine in Durham, North Carolina. Graduated from Duke University School of Medicine in 1986, 40 years ago. Practices with Legacy Healthcare Services Inc, a 3,624-clinician group and accepts Medicare assignment. Licensed in North Carolina.

Years since qualifying
40
Trained at
Duke University School of Medicine
Licensed in
NC
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4309 Medical Park Dr Ste 200
Durham, NC 27704-2389
Phone: (919) 471-4484
Fax: (919) 477-6131
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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 31730 (NC)

Record details

NPI number1245231588
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 9, 2005
Last updated in NPPESMarch 3, 2026
Certification dateMarch 3, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolDUKE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice Legacy Healthcare Services Inc — 3624 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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