NPPES file of Aug 9, 2026

Sonia Singh Nain, M.D.

Pediatrics Physician · Downers Grove, IL

Sonia Singh Nain, M.D. is a pediatrics physician with a practice address in Downers Grove, Illinois, and NPI 1801893011, issued on Jul 1, 2005. Check the license (Illinois 036.178362, as entered in NPPES) 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
1801893011
Name
Sonia Singh Nain
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
License numbers
036.178362 IL
0101236489 VA
MD600003827 DC
D0097681 MD
Self-reported in NPPES; status is on the state search
Practice location
1441 Branding Ave Ste 310, Downers Grove, IL 60515
Phone
(844) 284-0381
Enumerated
Jul 1, 2005
Record last updated
Apr 10, 2026
Fax
(414) 389-2184
Medicare enrollment
Enrolled (PECOS I20260305001481); may accept Medicare assignment
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.
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8 nearest pediatrics physician records → All 3,176 in Illinois → Look up another NPI →

Also registered at 1441 Branding Ave Ste 310

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

  1. Patricia Austermuehle, RNFamily Nurse Practitioner1972696136
  2. Mary Baker, FNPFamily Nurse Practitioner1942626577
  3. Joanna Bansfield, FNP-BCFamily Nurse Practitioner1992216816
  4. Dana Beyers, CNPFamily Nurse Practitioner1255664447
  5. Christine Bonavolante, LCSWClinical Social Worker1235292210
  6. Emily Clarke, APRNNurse Practitioner1154065167

Verify Sonia Singh Nain 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 036.178362    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

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

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Sonia Singh Nain among 3,176 pediatrics physician records in Illinois

Sonia Singh Nain, M.D. is one of 3,176 pediatrics physician records with a practice address in Illinois. 32% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 92% newer
  • In a Medicare fileNo · 32% of these records are
  • In the CMS Doctors and Clinicians fileYes · 7% of these records are
  • Graduated2001 · median 2010 among the 235 with a school on file
  • Record last updated2026 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

24 pediatrics physician records list a practice address in Downers Grove

They are 24 of the 1,899 NPPES records with a practice address in Downers Grove, and 3,176 pediatrics physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 3,176 in Illinois → Every provider in Downers Grove → Pediatrics Physician nationwide →

The 8 pediatrics physician records with the nearest ZIP codes

  1. Morounkeji Akin-Olugbemi, M.D, MPHDowners Grove, IL 605151447232392
  2. Cathleen Ayuste, MDDowners Grove, IL 605151932285236
  3. Ofelia Ayuste, M.D.Downers Grove, IL 605151669558961
  4. Deborah Boyle, M.D.Downers Grove, IL 605151174767081
  5. Khin Khin Bremer, MDDowners Grove, IL 605151891157632
  6. Stanislava Coufal, M.D.Downers Grove, IL 605151699701813
  7. Kathleen Gruzalski, MDDowners Grove, IL 605151396710356
  8. Malini Kumar, D.O.Downers Grove, IL 605151578859476

Common questions

What is Sonia Singh Nain, M.D.'s NPI number?

Sonia Singh Nain, M.D.'s National Provider Identifier (NPI) is 1801893011, issued on Jul 1, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Sonia Singh Nain, M.D. located?

The NPPES record lists a practice address at 1441 Branding Ave Ste 310, Downers Grove, IL, 60515. Phone: (844) 284-0381. Providers update this record themselves, so call before visiting.

How can I verify Sonia Singh Nain, M.D.'s license?

NPPES lists Illinois license number 036.178362, 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.

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.