NPPES file of Aug 9, 2026

Shilpa Viswanath

Sleep Medicine (Internal Medicine) Physician · Chicago, IL

Shilpa Viswanath is a sleep medicine (internal medicine) physician with a practice address in Chicago, Illinois, and NPI 1689109456, issued on Apr 28, 2017. Check the license (Illinois 036150448, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1689109456
Name
Shilpa Viswanath
Primary taxonomy
Sleep Medicine (Internal Medicine) Physician 207RS0012X
License number
036150448 IL
Self-reported in NPPES; status is on the state search
Practice location
1740 W Taylor St, Chicago, IL 60612
Phone
(866) 600-2273
Enumerated
Apr 28, 2017
Record last updated
Feb 26, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1740 W Taylor St

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

  1. Francisco AbancoCertified Registered Nurse Anesthetist1255844288
  2. Leena Abbas, MDStudent in an Organized Health Care Education/Training Program1679376594
  3. Herand AbcarianColon & Rectal Surgery Physician1881792372
  4. Ivy AbrahamHematology & Oncology Physician1497172845
  5. Rohit Abraham, MD, MPH, MATPsychiatry Physician1013478932
  6. Ereni Abuaita, DOInternal Medicine Physician1013710961

Verify Shilpa Viswanath in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036150448
    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 Illinois license search

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96% fewer Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024

25 Medicare Part D claims, against an average of 585 among the 852 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Shilpa Viswanath25
  2. Specialty average585

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.

Shilpa Viswanath among 43 sleep medicine (internal medicine) physician records in Illinois

Shilpa Viswanath is one of 43 sleep medicine (internal medicine) physician records with a practice address in Illinois. 91% 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 70% of them.

  • NPI issued2017 · 70% of these records are older, 26% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileNo · 70% of these records are
  • Record last updated2025 · 35% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sleep Medicine (Internal Medicine) Physician providers in Illinois

There are 43 sleep medicine (internal medicine) physician records in Illinois.

The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes

  1. Ammar Ahmed, MDChicago, IL 606121821619388
  2. Upneet Chawla, M.D.Chicago, IL 606121659802486
  3. Simar ChawlaChicago, IL 606121619554318
  4. Nneoma Eneh, M.D.Chicago, IL 606121760129720
  5. Lindsay McCullough, M.D.Chicago, IL 606121598145187
  6. Ashesha Mechineni, MD, FACPChicago, IL 606121659784817
  7. Julie Neborak, M.D.Chicago, IL 606121073992202
  8. James Rowley, MDChicago, IL 606121184662207

Common questions

What is Shilpa Viswanath's NPI number?

Shilpa Viswanath's National Provider Identifier (NPI) is 1689109456, issued on Apr 28, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Shilpa Viswanath located?

The NPPES record lists a practice address at 1740 W Taylor St, Chicago, IL, 60612. Phone: (866) 600-2273. Providers update this record themselves, so call before visiting.

How can I verify Shilpa Viswanath's license?

NPPES lists Illinois license number 036150448, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Shilpa Viswanath prescribe under Medicare Part D?

In 2024, Shilpa Viswanath had 25 Medicare Part D claims; the average among sleep medicine (internal medicine) physician prescribers was 585. Part D covers Medicare prescriptions only.

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.