NPPES file of Aug 9, 2026

Sahityan Viswanathan, M.D.

Nephrology Physician · Las Vegas, NV

Sahityan Viswanathan, M.D. is a nephrology physician with a practice address in Las Vegas, Nevada, and NPI 1194251793, issued on May 3, 2017. Check the license (Nevada 22333, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1194251793
Name
Sahityan Viswanathan
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License numbers
22333 NV
BP20071809 TX
Self-reported in NPPES; status is on the state search
Practice location
2545 S Bruce St Ste 200, Las Vegas, NV 89169
Phone
(702) 732-2438
Enumerated
May 3, 2017
Record last updated
May 16, 2024
Fax
(702) 737-5043
Medicaid ID
1194251793 NV
Medicare enrollment
Enrolled (PECOS I20220726001796); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 2545 S Bruce St Ste 200

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Abdallah Alali, MDNephrology Physician1508248337
  2. Cynthia Alvarez, CNPFamily Nurse Practitioner1831812577
  3. Emmanuel Riene Colanggo, FNP-CNurse Practitioner1467211839
  4. Anne Cruse, R.D.Registered Dietitian1326133059
  5. Savannah D'CruzNurse Practitioner1811866585
  6. Kristina Clarisse Doble, FNP-CNurse Practitioner1326587155

Verify Sahityan Viswanathan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNevada State Board of Medical Examiners
    Search for license 22333
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Nevada license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

38% fewer Medicare Part D claims than the average nephrology physician in 2024

913 Medicare Part D claims for 206 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Sahityan Viswanathan913
  2. Specialty average1,465

Most prescribed

  1. Carvedilol94 claims
  2. Furosemide94 claims
  3. Losartan Potassium69 claims
  4. Amlodipine Besylate53 claims
  5. Jardiance48 claims
  6. Lisinopril38 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 77.6 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score70.6
  2. Costout of 100 · 30%46.0
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $905.05

33 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sahityan Viswanathan$905.05
  2. Specialty average$3,091.37

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Nkdhc Rudnitsky PLLCLas Vegas, NV

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sahityan Viswanathan among 125 nephrology physician records in Nevada

Sahityan Viswanathan, M.D. is one of 125 nephrology physician records with a practice address in Nevada. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 94% of them.

  • NPI issued2017 · 94% of these records are older, 3% newer
  • In a Medicare fileYes · 92% of these records are
  • In the CMS Doctors and Clinicians fileYes · 85% of these records are
  • Graduated2014 · median 2000 among the 106 with a school on file
  • Record last updated2024 · 26% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Nevada

There are 125 nephrology physician records in Nevada.

The 8 nephrology physician records with the nearest ZIP codes

  1. Abdallah Alali, MDLas Vegas, NV 891691508248337
  2. Neda Hashemi, M.D.Las Vegas, NV 891691750652418
  3. David Makil, M.D.Las Vegas, NV 891691679554174
  4. Harsha Mulchandani, MDLas Vegas, NV 891691023006384
  5. Peilin Wei, M.D.Las Vegas, NV 891691093999104
  6. Smita Maity, M.D.Las Vegas, NV 891481982648309
  7. Rafael Sancillo, MDNellis Afb, NV 891911770907578
  8. Marwah Al-Khazaali, M.D.Las Vegas, NV 891461962896043

Common questions

What is Sahityan Viswanathan, M.D.'s NPI number?

Sahityan Viswanathan, M.D.'s National Provider Identifier (NPI) is 1194251793, issued on May 3, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Sahityan Viswanathan, M.D. located?

The NPPES record lists a practice address at 2545 S Bruce St Ste 200, Las Vegas, NV, 89169. Phone: (702) 732-2438. Providers update this record themselves, so call before visiting.

How can I verify Sahityan Viswanathan, M.D.'s license?

NPPES lists Nevada license number 22333, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Sahityan Viswanathan, M.D. prescribe under Medicare Part D?

In 2024, Sahityan Viswanathan, M.D. had 913 Medicare Part D claims for 206 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

What is Sahityan Viswanathan, M.D.'s MIPS final score?

The 2023 MIPS final score is 77.6 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.