Esther Kwak, DO
Internal Medicine Physician · Evanston, IL
Esther Kwak, DO is an internal medicine physician with a practice address in Evanston, Illinois, and NPI 1578024055, issued on Mar 27, 2019. Check the license (Illinois 036158665, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Esther Kwak
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 036158665 IL
125073627 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2650 Ridge Ave., Evanston, IL 60201
- Phone
- (847) 570-2505
- Enumerated
- Mar 27, 2019
- Record last updated
- May 25, 2022
- Fax
- (847) 570-2905
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 2650 Ridge Ave.
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Aleksandar Alavanja, MDDiagnostic Radiology Physician1619321106
Verify Esther Kwak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036158665Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 93.1 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $566.03
7 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Esther Kwak among 7,238 internal medicine physician records in Illinois
Esther Kwak, DO is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 68% of them.
- NPI issued2019 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2022 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
178 internal medicine physician records list a practice address in Evanston
They are 178 of the 4,013 NPPES records with a practice address in Evanston, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Evanston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gary Davis, M.D.Evanston, IL 602011588605745
- Bruce Doblin, MDEvanston, IL 602011417903212
- Steven Fox, MDEvanston, IL 602011821032210
- Richard Gayes, M.D.Evanston, IL 602011942233242
- Jeffrey Geohas, M.D.Evanston, IL 602011609846351
- Mahalakshmi Halasyamani, M.D.Evanston, IL 602011760441679
- Liza Icayan, M.D.Evanston, IL 602011316922529
- Shrimant Mishra, MDEvanston, IL 602011376551150
Common questions
What is Esther Kwak, DO's NPI number?
Esther Kwak, DO's National Provider Identifier (NPI) is 1578024055, issued on Mar 27, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Esther Kwak, DO located?
The NPPES record lists a practice address at 2650 Ridge Ave., Evanston, IL, 60201. Phone: (847) 570-2505. Providers update this record themselves, so call before visiting.
How can I verify Esther Kwak, DO's license?
NPPES lists Illinois license number 036158665, 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.
What is Esther Kwak, DO's MIPS final score?
The 2023 MIPS final score is 93.1 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.