NPI age
14 years
Enumerated 2011-08-22
● Active
Type 1 · Individual
Reuben Jonathan Arasaratnam, MD
Arasaratnam is 1 of 127 internal medicine providers in Dallas and 1 of 920 in Texas.
Primary specialty
Internal Medicine
Plus 1 subspecialty
Licensed in
TX, NC
2 states
Status
Active
No deactivations on record
Last NPPES update
2019-06-17
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 920 active internal medicine providers in Texas.
NPI age
14 years
↓ 3 yr below median (17 yr)
State licenses
2 states
Top 83% — 16% of peers are multi-state
Subspecialties
1
In the 35% of peers with subspecialties
NPI lifetime · 2011 → 2026
2011-08Enumerated in NPPES
2011
2026
Where they practice
Practice location
5303 Harry Hines Blvd
Dallas, TX 75390
Mailing address
Po Box 845347
Dallas, TX 752847208
Additional practice locations
1 secondary location on file with NPPES.
Location 2
101 Mason Farm Rd Ste 3100, Cb 7705
Chapel Hill, NC 275996136
Specialties
-
Internal Medicine PrimaryAn internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients...
-
Student in an Organized Health Care Education/Training ProgramAn individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Practice context
Part of a multi-provider practice. 50 other active providers share this practice address in NPPES.
Recently enumerated nearby: 1 new internal medicine provider has been added in Dallas in the last 180 days.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.