Sahityan Viswanathan, M.D.
NPI 1194251793 · Nephrology Physician · Las Vegas, NV
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sahityan Viswanathan, M.D. is a Nephrology Physician provider in Las Vegas, NV (NPI 1194251793).
Provider details
- NPI number
- 1194251793
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- BP20071809 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 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
1,313 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 788 | $113 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 138 | $164 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 122 | $76 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 102 | $116 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 90 | $341 |
| Home Dialysis Services Per Month (20 Years Or Older)90966 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Carvedilol | 94 | 36 |
| Furosemide | 94 | 40 |
| Losartan Potassium | 69 | 30 |
| Amlodipine Besylate | 53 | 26 |
| Empagliflozinbrand: Jardiance | 48 | 25 |
| Lisinopril | 38 | 20 |
| Sevelamer Carbonate | 32 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$905 across 33 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
- 2017-05-03
- Last updated
- 2024-05-16
- Certified
- 2024-05-16
Frequently asked questions
- What is Sahityan Viswanathan's NPI number?
- Sahityan Viswanathan's National Provider Identifier (NPI) is 1194251793, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sahityan Viswanathan's specialty?
- Sahityan Viswanathan is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Sahityan Viswanathan located?
- Sahityan Viswanathan's practice location on file with NPPES is 2545 S Bruce St Ste 200, Las Vegas, NV 89169-1778.
- What is Sahityan Viswanathan's phone number?
- The practice phone number listed in the NPPES registry for Sahityan Viswanathan is (702) 732-2438.
- Does Sahityan Viswanathan accept Medicare?
- Sahityan Viswanathan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sahityan Viswanathan's NPI active?
- Yes — Sahityan Viswanathan's NPI (1194251793) is active in the NPPES registry as of the last update on 2024-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.