NPPES file of Aug 9, 2026

Sonia Krishnan, M.D.

Pediatric Nephrology Physician · Chicago, IL

Sonia Krishnan, M.D. is a pediatric nephrology physician with a practice address in Chicago, Illinois, and NPI 1164665808, issued on Apr 10, 2009. Check the license (Illinois 036144219, 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
1164665808
Name
Sonia Krishnan
Credential
M.D.
Primary taxonomy
Pediatric Nephrology Physician 2080P0210X
License number
036144219 IL
Self-reported in NPPES; status is on the state search
Practice location
840 S Wood St # MC856, Chicago, IL 60612
Phone
(312) 996-9291
Enumerated
Apr 10, 2009
Record last updated
Sep 1, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20171121001655); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2000
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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Also registered at 840 S Wood St # MC856

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

  1. Michelle Barnes, MDPediatrics Physician1275736035
  2. Claudia Boucher-Berry, M.D.Pediatric Endocrinology Physician1437383528
  3. Christine Horne, APNPediatric Nurse Practitioner1942755368
  4. Zena MalhisPediatrics Physician1407559453
  5. Jessica Young, MSGenetic Counselor (M.S.)1942879705

Verify Sonia Krishnan 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 036144219
    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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52% fewer Medicare Part D claims than the average pediatric nephrology physician in 2024

32 Medicare Part D claims, against an average of 67 among the 387 providers of this specialty who prescribed in Part D.

  1. Sonia Krishnan32
  2. Specialty average67

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.

Bills Medicare through one group practice

  1. The Board OF Trustees OF The University OF IllinoisChicago, IL

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

Sonia Krishnan among 42 pediatric nephrology physician records in Illinois

Sonia Krishnan, M.D. is one of 42 pediatric nephrology physician records with a practice address in Illinois. 50% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 60% of them.

  • NPI issued2009 · 60% of these records are older, 33% newer
  • In a Medicare fileYes · 50% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2000 · median 2004 among the 16 with a school on file
  • Record last updated2021 · 36% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0210X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Nephrology Physician providers in Illinois

There are 42 pediatric nephrology physician records in Illinois.

The 8 pediatric nephrology physician records with the nearest ZIP codes

  1. Farahnak Assadi, M.D.Chicago, IL 606121639100019
  2. Kimberly Czech, MDChicago, IL 606121245447416
  3. Shihtien Wang, M.D.Chicago, IL 606121548383656
  4. Carlos Becerril Romero, MD, MSChicago, IL 606111497243521
  5. Travis Churilla, MDChicago, IL 606111033795133
  6. Vidhi Dalal, MDChicago, IL 606111528454642
  7. Gal Finer, M.D., PHDChicago, IL 606111578722625
  8. Jeanne Frisby-Zedan, M.D.Chicago, IL 606111427599877

Common questions

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

Sonia Krishnan, M.D.'s National Provider Identifier (NPI) is 1164665808, issued on Apr 10, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Sonia Krishnan, M.D. located?

The NPPES record lists a practice address at 840 S Wood St # MC856, Chicago, IL, 60612. Phone: (312) 996-9291. Providers update this record themselves, so call before visiting.

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

NPPES lists Illinois license number 036144219, 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 Sonia Krishnan, M.D. prescribe under Medicare Part D?

In 2024, Sonia Krishnan, M.D. had 32 Medicare Part D claims; the average among pediatric nephrology physician prescribers was 67. 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.