Internal Medicine Physician in Oak Ridge, TN

Ranked by profile completeness, registry tenure & documented Medicare activity — an honest, data-backed ordering, not a quality, outcomes, or patient-satisfaction verdict.

Compare 22 Internal Medicine Physician providers with a practice address in Oak Ridge, Tennessee. Every entry is a real NPI record you can open and verify; 100% of the ranked results below have a street-level (rooftop) location.

Providers in city

Street-level located

100%

Registry vintage

June 2026

Ranked Internal Medicine Physician

Top 22 of 22

22 Internal Medicine Physician practice in Oak Ridge. Compare the most complete records below, or filter the full list by name and nearby ZIP.

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1
Aathi Lakshmi Mariappan
Internal Medicine Physician · Oak Ridge, TN

Ranking reflects NPPES profile completeness, registry tenure, and documented Medicare activity (where present) — see our methodology. It is not a measure of clinical quality or patient satisfaction. Source: CMS NPPES (June 2026); specialty taxonomy: NUCC. Locations are geocoded from the public practice address.