NPPES file of Aug 9, 2026

Nillawan S. Yongsmith, M.D.

Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician · Darien, IL

Nillawan S. Yongsmith, M.D. is a hospice and palliative medicine (physical medicine & rehabilitation) physician with a practice address in Darien, Illinois, and NPI 1275744070, issued on May 24, 2007. Check the license on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1275744070
Name
Nillawan S. Yongsmith
Credential
M.D.
Primary taxonomy
Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician 2081H0002X
Practice location
8522carriagegreensdr., Darien, IL 60561
Phone
(630) 985-7893
Enumerated
May 24, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(630) 985-7893
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.
Download card Updates feed

Verify Nillawan S. Yongsmith in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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

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.

Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician providers in Illinois

There are 4 hospice and palliative medicine (physical medicine & rehabilitation) physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 4 in Illinois → Every provider in Darien →

Other hospice and palliative medicine (physical medicine & rehabilitation) physician records in Illinois

  1. Jaewon Jung, MDChicago, IL1144858788
  2. Richard Kiang, M.D.Crest Hill, IL1093939902
  3. Renu Mahajan, MDOak Park, IL1932311883

Common questions

What is Nillawan S. Yongsmith, M.D.'s NPI number?

Nillawan S. Yongsmith, M.D.'s National Provider Identifier (NPI) is 1275744070, issued on May 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Nillawan S. Yongsmith, M.D. located?

The NPPES record lists a practice address at 8522carriagegreensdr., Darien, IL, 60561. Phone: (630) 985-7893. Providers update this record themselves, so call before visiting.

How can I verify Nillawan S. Yongsmith, M.D.'s license?

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.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.