NPPES file of Aug 9, 2026

Jason E. Knuffman, MD

Allergy & Immunology (Internal Medicine) Physician · Quincy, IL

Jason E. Knuffman, MD is an allergy & immunology (internal medicine) physician with a practice address in Quincy, Illinois, and NPI 1184690109, issued on Feb 28, 2006. Check the license (Illinois 036133088, 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
1184690109
Name
Jason E. Knuffman
Credential
MD
Primary taxonomy
Allergy & Immunology (Internal Medicine) Physician 207RA0201X
License numbers
036133088 IL
44933 WI
Self-reported in NPPES; status is on the state search
Practice location
1025 Maine St, Quincy, IL 62301
Phone
(217) 222-6550
Enumerated
Feb 28, 2006
Record last updated
Oct 8, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicaid ID
34583000 WI
Medicare enrollment
Enrolled (PECOS I20130925000375); accepts Medicare assignment
Medical or professional school
Saint Louis University School Of Medicine, 2001
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 1025 Maine St

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

  1. Daniel Acosta Bowen, MDFamily Medicine Physician1528790920
  2. Amanda Adams, OTOccupational Therapist1205038213
  3. Erin Adams, MOTR/LOccupational Therapist1144453416
  4. Tawny Allen, DOFamily Medicine Physician1255319844
  5. Dana Altman, DOFamily Medicine Physician1043298532
  6. Halley Anderson, DOGeriatric Medicine (Family Medicine) Physician1427495803

Verify Jason E. Knuffman 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 036133088
    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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2.8 times the Medicare Part D claims of the average allergy & immunology (internal medicine) physician in 2024

2,229 Medicare Part D claims for 320 beneficiaries, against an average of 789 among the 429 providers of this specialty who prescribed in Part D.

  1. Jason Knuffman2,229
  2. Specialty average789

Most prescribed

  1. Montelukast Sodium509 claims
  2. Azelastine Hcl176 claims
  3. Albuterol Sulfate Hfa128 claims
  4. Ipratropium Bromide117 claims
  5. Fluticasone Propionate107 claims
  6. Trelegy Ellipta101 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.

Industry payments in 2024: $380.62

18 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 321 providers of this specialty with any payment received $7,456.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jason Knuffman$380.62
  2. Specialty average$7,456.30

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

Bills Medicare through one group practice

  1. Quincy Physicians And Surgeons Clinic, PLLCQuincy, IL

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

Jason E. Knuffman among 22 allergy & immunology (internal medicine) physician records in Illinois

Jason E. Knuffman, MD is one of 22 allergy & immunology (internal medicine) physician records with a practice address in Illinois. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 55% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2001 · median 2000 among the 17 with a school on file
  • Record last updated2013 · 32% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0201X 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 (Internal Medicine) Physician providers in Illinois

There are 22 allergy & immunology (internal medicine) physician records in Illinois.

The 8 allergy & immunology (internal medicine) physician records with the nearest ZIP codes

  1. Dareen Siri, M.D.Normal, IL 617611730272998
  2. Sonia Shah, M.D.Chicago, IL 606411144407594
  3. Sindhura Bandi, MDChicago, IL 606121891951208
  4. Christopher Greb, MDChicago, IL 606121134623895
  5. Mahera Husain, MDChicago, IL 606121659075596
  6. Elizabeth Kudlaty, MDChicago, IL 606121326543232
  7. Ellen Stephen, MDChicago, IL 606121225521776
  8. Sylvia Li, MDChicago, IL 606111508492463

Common questions

What is Jason E. Knuffman, MD's NPI number?

Jason E. Knuffman, MD's National Provider Identifier (NPI) is 1184690109, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jason E. Knuffman, MD located?

The NPPES record lists a practice address at 1025 Maine St, Quincy, IL, 62301. Phone: (217) 222-6550. Providers update this record themselves, so call before visiting.

How can I verify Jason E. Knuffman, MD's license?

NPPES lists Illinois license number 036133088, 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 Jason E. Knuffman, MD prescribe under Medicare Part D?

In 2024, Jason E. Knuffman, MD had 2,229 Medicare Part D claims for 320 beneficiaries; the average among allergy & immunology (internal medicine) physician prescribers was 789. 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.