NPPES file of Aug 9, 2026

Tommy Kwak, M.D.

Internal Medicine Physician · Vernon Hills, IL

Tommy Kwak, M.D. is an internal medicine physician with a practice address in Vernon Hills, Illinois, and NPI 1235472820, issued on Apr 1, 2013. Check the license (Illinois 036.139684, 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
1235472820
Name
Tommy Kwak
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
036.139684 IL
036139684 IL
Self-reported in NPPES; status is on the state search
Practice location
270 Center Dr Ste 120, Vernon Hills, IL 60061
Phone
(847) 200-1002
Enumerated
Apr 1, 2013
Record last updated
Sep 12, 2024
Fax
(224) 298-0432
Medicare enrollment
Enrolled (PECOS I20160623002184); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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Verify Tommy Kwak 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 036.139684
    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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99% fewer Medicare Part D claims than the average internal medicine physician in 2024

35 Medicare Part D claims for 15 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Tommy Kwak35
  2. Specialty average3,176

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.

Industry payments in 2024: $6,600.00

12 payments; by number, the most common kind was consulting fee; the largest payer was Csl Plasma 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.

  1. Tommy Kwak$6,600.00
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Tommy Kwak among 7,238 internal medicine physician records in Illinois

Tommy Kwak, M.D. 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 2013, is newer than 57% of them.

  • NPI issued2013 · 57% of these records are older, 41% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2009 · median 2003 among the 3,580 with a school on file
  • Record last updated2024 · 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).

19 internal medicine physician records list a practice address in Vernon Hills

They are 19 of the 704 NPPES records with a practice address in Vernon Hills, and 7,238 internal medicine physician records in Illinois.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Rafa Adi, M.D.Vernon Hills, IL 600611205845054
  2. Nadeem Alavi, DOVernon Hills, IL 600611609934983
  3. Alan Aronson, MDVernon Hills, IL 600611992864946
  4. Howard Baker, D.O.Vernon Hills, IL 600611558326439
  5. Fanan Falouji, M.D.Vernon Hills, IL 600611306855481
  6. Vincent Fang, MDVernon Hills, IL 600611851450654
  7. Louis Kanter, MDVernon Hills, IL 600611366464281
  8. John Kiriklakis, M.D.Vernon Hills, IL 600611730189713

Common questions

What is Tommy Kwak, M.D.'s NPI number?

Tommy Kwak, M.D.'s National Provider Identifier (NPI) is 1235472820, issued on Apr 1, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Tommy Kwak, M.D. located?

The NPPES record lists a practice address at 270 Center Dr Ste 120, Vernon Hills, IL, 60061. Phone: (847) 200-1002. Providers update this record themselves, so call before visiting.

How can I verify Tommy Kwak, M.D.'s license?

NPPES lists Illinois license number 036.139684, 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 Tommy Kwak, M.D. prescribe under Medicare Part D?

In 2024, Tommy Kwak, M.D. had 35 Medicare Part D claims for 15 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.