Sanjaya Viswamitra, M.D.
NPI 1669421681 · Diagnostic Radiology Physician · Little Rock, AR
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sanjaya Viswamitra, M.D. is a Diagnostic Radiology Physician provider in Little Rock, AR (NPI 1669421681).
Provider details
- NPI number
- 1669421681
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- E-2732 (AR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
349 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 84 | $36 |
| Ct Scan of Blood Vessels of Neck With Contrast70498 | 43 | $71 |
| Ct Scan of Blood Vessels of Head With Contrast70496 | 42 | $73 |
| Ct Scan of Upper Spine Without Contrast72125 | 40 | $42 |
| Mri Scan of Brain Before and After Contrast70553 | 34 | $96 |
| Nuclear Medicine Study Whole Body With Ct Scan78816 | 20 | $105 |
| Mri Scan of Brain Without Contrast |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$596 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Sanjaya Viswamitra's NPI number?
- Sanjaya Viswamitra's National Provider Identifier (NPI) is 1669421681, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sanjaya Viswamitra's specialty?
- Sanjaya Viswamitra is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Sanjaya Viswamitra located?
- Sanjaya Viswamitra's practice location on file with NPPES is 4301 W Markham St, Little Rock, AR 72205-7101.
- What is Sanjaya Viswamitra's phone number?
- The practice phone number listed in the NPPES registry for Sanjaya Viswamitra is (501) 686-6902.
- Does Sanjaya Viswamitra accept Medicare?
- Sanjaya Viswamitra is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sanjaya Viswamitra's NPI active?
- Yes — Sanjaya Viswamitra's NPI (1669421681) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.