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

Individual provider Internal Medicine Physician · NPI 1023043858

Daniel Mahendran Ratnarajah, MD is an Internal Medicine in Oneida, New York. Qualified in 1990, 36 years ago. Practices with Oneida Indian Health Services, a 9-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
36
Licensed in
NY
In the registry since
2006
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.

Oneida Medical Associates Pllc 600 Seneca St
Oneida, NY 13421
Phone: (315) 363-1345
Fax: (315) 363-9243
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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 197066 (NY)

Record details

NPI number1023043858
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 11, 2006
Last updated in NPPESMarch 25, 2019
Mailing address600 Seneca Street, Oneida, NY 13421-1548

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Oneida Indian Health Services — 9 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

Other providers in Oneida