NPPES file of Aug 9, 2026

Thomas James Haferkamp, MD

Geriatric Medicine (Internal Medicine) Physician · Chicago, IL

Thomas James Haferkamp, MD is a geriatric medicine (internal medicine) physician with a practice address in Chicago, Illinois, and NPI 1851913503, issued on May 15, 2020. Check the license (Illinois 036164136, 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
1851913503
Name
Thomas James Haferkamp
Credential
MD
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License numbers
036164136 IL
036.1614136 IL
Self-reported in NPPES; status is on the state search
Practice location
5841 S. Maryland Ave, Chicago, IL 60637
Phone
(773) 702-1150
Enumerated
May 15, 2020
Record last updated
Jul 3, 2024
Medicare enrollment
Enrolled (PECOS I20240717000151); accepts Medicare assignment
Medical or professional school
University Of Missouri, Kansas City, School Of Medicine, 2020
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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8 nearest geriatric medicine (internal medicine) physician records → All 179 in Illinois → Look up another NPI →

Also registered at 5841 S. Maryland Ave

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

  1. Fahad Aldashash, MBBSSports Medicine (Orthopaedic Surgery) Physician1669214003
  2. Chukwunedum Aniemeka, MDInternal Medicine Physician1497336473
  3. Lavinia Anzai, M.D.Plastic and Reconstructive Surgery Physician1912430737
  4. Ethan Austhof, MDDiagnostic Radiology Physician1710628730
  5. Matthew Borchart, MDPulmonary Disease Physician1497374508
  6. Ryan Burris, M.D.Clinical Cardiac Electrophysiology Physician1710305826

Verify Thomas James Haferkamp 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 036164136    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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78% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

922 Medicare Part D claims for 137 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 16 claims were for opioids.

  1. Thomas Haferkamp922
  2. Specialty average4,246

Most prescribed

  1. Amlodipine Besylate62 claims
  2. Atorvastatin Calcium56 claims
  3. Trazodone Hcl33 claims
  4. Sertraline Hcl32 claims
  5. Tamsulosin Hcl32 claims
  6. Metoprolol Succinate28 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. University OF ChicagoChicago, IL

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

Thomas James Haferkamp among 179 geriatric medicine (internal medicine) physician records in Illinois

Thomas James Haferkamp, MD is one of 179 geriatric medicine (internal medicine) physician records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 91% of them.

  • NPI issued2020 · 91% of these records are older, 8% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2020 · median 1997 among the 76 with a school on file
  • Record last updated2024 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Illinois

There are 179 geriatric medicine (internal medicine) physician records in Illinois.

All 179 in Illinois → Every provider in Chicago → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Kellie Campbell, M.D.Chicago, IL 606371720281611
  2. Lauren GleasonChicago, IL 606371780826560
  3. Amit Grewal, MDChicago, IL 606371164124814
  4. Megan Huisingh-ScheetzChicago, IL 606371720273063
  5. Samantha IngChicago, IL 606371306328661
  6. Changgi Jung, MDChicago, IL 606371275054082
  7. Tia KostasChicago, IL 606371174722409
  8. Patricia Lee, MDChicago, IL 606371811525579

Common questions

What is Thomas James Haferkamp, MD's NPI number?

Thomas James Haferkamp, MD's National Provider Identifier (NPI) is 1851913503, issued on May 15, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Thomas James Haferkamp, MD located?

The NPPES record lists a practice address at 5841 S. Maryland Ave, Chicago, IL, 60637. Phone: (773) 702-1150. Providers update this record themselves, so call before visiting.

How can I verify Thomas James Haferkamp, MD's license?

NPPES lists Illinois license number 036164136, 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 James Haferkamp, MD prescribe under Medicare Part D?

In 2024, Thomas James Haferkamp, MD had 922 Medicare Part D claims for 137 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.