NPPES file of Aug 9, 2026

Thomas Waller

Infectious Disease Physician · Chicago, IL

Thomas Waller is an infectious disease physician with a practice address in Chicago, Illinois, and NPI 1780116376, issued on Apr 1, 2017. Check the license (Illinois 036.153369, 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
1780116376
Name
Thomas Waller
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
036.153369 IL
Self-reported in NPPES; status is on the state search
Practice location
1620 W Harrison St, Chicago, IL 60612
Phone
(312) 942-5000
Enumerated
Apr 1, 2017
Record last updated
Jul 16, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20220629001167); accepts Medicare assignment
Medical or professional school
Midwestern University College Of Dental Medicine, Downers Grove, 2017
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 1620 W Harrison St

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

  1. Kylie Abernathy, OTOccupational Therapist1518489269
  2. Iris Abrahantes Morales, MDObstetrics & Gynecology Physician1164155164
  3. Sunaina Addanki, MDInternal Medicine Physician1396593349
  4. Favour AdebayoPhysical Therapist1245072081
  5. Adebanke Adeyemi, MDInternal Medicine Physician1922933936
  6. Emily Adochio-Clancy, MDInfectious Disease Physician1629606975

Verify Thomas Waller 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 036.153369
    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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52% fewer Medicare Part D claims than the average infectious disease physician in 2024

333 Medicare Part D claims for 112 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.

  1. Thomas Waller333
  2. Specialty average689

Most prescribed

  1. Doxycycline Hyclate47 claims
  2. Amoxicillin-Clavulanate Potass41 claims
  3. Cefadroxil35 claims
  4. Biktarvy25 claims
  5. Sulfamethoxazole-Trimethoprim20 claims
  6. Amoxicillin15 claims

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. Cook CountyChicago, IL

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

Thomas Waller among 464 infectious disease physician records in Illinois

Thomas Waller is one of 464 infectious disease physician records with a practice address in Illinois. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 83% of them.

  • NPI issued2017 · 83% of these records are older, 16% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2017 · median 2004 among the 311 with a school on file
  • Record last updated2020 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Illinois

There are 464 infectious disease physician records in Illinois.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Stephanie Black, M.D.Chicago, IL 606121316908791
  2. Larry Goodman, M.DChicago, IL 606121356396550
  3. Alan Harris, M.D.Chicago, IL 606121699736488
  4. Mary Hayden, M.D.Chicago, IL 606121730140187
  5. Ronald Hershow, M.D.Chicago, IL 606121942241054
  6. Preeti Kaur, M.D.,M.P.H.Chicago, IL 606121972560639
  7. Harold Kessler, M.D.Chicago, IL 606121730140534
  8. John KowalskiChicago, IL 606121235178708

Common questions

What is Thomas Waller's NPI number?

Thomas Waller's National Provider Identifier (NPI) is 1780116376, issued on Apr 1, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Waller located?

The NPPES record lists a practice address at 1620 W Harrison St, Chicago, IL, 60612. Phone: (312) 942-5000. Providers update this record themselves, so call before visiting.

How can I verify Thomas Waller's license?

NPPES lists Illinois license number 036.153369, 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 Thomas Waller prescribe under Medicare Part D?

In 2024, Thomas Waller had 333 Medicare Part D claims for 112 beneficiaries; the average among infectious disease physician prescribers was 689. 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.