Arun Rajaratnam, M.D
NPI 1629451414 · Internal Medicine Physician · Alexandria, VA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arun Rajaratnam, M.D is a Internal Medicine Physician provider in Alexandria, VA (NPI 1629451414).
Provider details
- NPI number
- 1629451414
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- MT208475 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 15 | 13 |
| Rsvpref3 Antigen/As01e/Pfbrand: Arexvy | 15 | 15 |
| Atorvastatin Calcium | 14 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-06-30
- Last updated
- 2025-04-10
- Certified
- 2025-04-10
Frequently asked questions
- What is Arun Rajaratnam's NPI number?
- Arun Rajaratnam's National Provider Identifier (NPI) is 1629451414, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arun Rajaratnam's specialty?
- Arun Rajaratnam is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Arun Rajaratnam located?
- Arun Rajaratnam's practice location on file with NPPES is 3000 Potomac Ave, Alexandria, VA 22305-3084.
- What is Arun Rajaratnam's phone number?
- The practice phone number listed in the NPPES registry for Arun Rajaratnam is (703) 721-6300.
- Does Arun Rajaratnam accept Medicare?
- Arun Rajaratnam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arun Rajaratnam's NPI active?
- Yes — Arun Rajaratnam's NPI (1629451414) is active in the NPPES registry as of the last update on 2025-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.