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

Individual provider Internal Medicine Physician · NPI 1639377914

John Seneka Rajapakse, MD is an Internal Medicine in Perth Amboy, New Jersey. Qualified in 2003, 23 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
23
Licensed in
NJ
In the registry since
2007
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

495 New Brunswick Ave
Perth Amboy, NJ 08861-3653
Phone: (732) 442-4422
Fax: (732) 442-3577
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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 25MA08277300 (NJ)

Record details

NPI number1639377914
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 6, 2007
Last updated in NPPESNovember 26, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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