NPPES file of Aug 9, 2026

Thomas Vanosdol, MD

Allergy & Immunology Physician · Plainfield, IL

Thomas Vanosdol, MD is an allergy & immunology physician with a practice address in Plainfield, Illinois, and NPI 1275514366, issued on Nov 7, 2005. Check the license (Illinois 036118974, 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
1275514366
Name
Thomas Vanosdol
Credential
MD
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License number
036118974 IL
Self-reported in NPPES; status is on the state search
Practice location
24600 W 127TH St Ste 225, Plainfield, IL 60585
Phone
(630) 545-7833
Enumerated
Nov 7, 2005
Record last updated
Aug 31, 2023
Fax
(630) 545-7835
Medicare enrollment
Enrolled (PECOS I20070917000561); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 1999
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 Thomas Vanosdol 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 036118974
    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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14% fewer Medicare Part D claims than the average allergy & immunology physician in 2024

637 Medicare Part D claims for 166 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.

  1. Thomas Vanosdol637
  2. Specialty average741

Most prescribed

  1. Azelastine Hcl81 claims
  2. Montelukast Sodium76 claims
  3. Ipratropium Bromide41 claims
  4. Fluticasone Propionate38 claims
  5. Albuterol Sulfate Hfa35 claims
  6. Fluticasone-Salmeterol28 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. Dupage Medical Group LtdPlainfield, IL

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

Thomas Vanosdol among 162 allergy & immunology physician records in Illinois

Thomas Vanosdol, MD is one of 162 allergy & immunology physician records with a practice address in Illinois. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 86% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1999 · median 2001 among the 114 with a school on file
  • Record last updated2023 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in Illinois

There are 162 allergy & immunology physician records in Illinois.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Ayesha Siddiqi, M.D.Chicago, IL 606021003878299
  2. Amiinah Kung, MDNaperville, IL 605641174624241
  3. Sarah Boudreau-Romano, M.D.Chicago, IL 606101558794446
  4. Elena Gozum, MDYorkville, IL 605601275534471
  5. Krishan Chhiba, MD, PHDChicago, IL 606111942691860
  6. Leslie Grammer, MDChicago, IL 606111487690285
  7. Paul Greenberger, MDChicago, IL 606111962431437
  8. Amer Khojah, M.D.Chicago, IL 606111265710388

Common questions

What is Thomas Vanosdol, MD's NPI number?

Thomas Vanosdol, MD's National Provider Identifier (NPI) is 1275514366, issued on Nov 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Vanosdol, MD located?

The NPPES record lists a practice address at 24600 W 127TH St Ste 225, Plainfield, IL, 60585. Phone: (630) 545-7833. Providers update this record themselves, so call before visiting.

How can I verify Thomas Vanosdol, MD's license?

NPPES lists Illinois license number 036118974, 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 Vanosdol, MD prescribe under Medicare Part D?

In 2024, Thomas Vanosdol, MD had 637 Medicare Part D claims for 166 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.