NPPES file of Aug 9, 2026

Luke Joseph Laffin, M.D.

Internal Medicine Physician · Chicago, IL

Luke Joseph Laffin, M.D. is an internal medicine physician with a practice address in Chicago, Illinois, and NPI 1487942074, issued on Jul 15, 2011. Check the license (Illinois 125059279, 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
1487942074
Name
Luke Joseph Laffin
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
125059279 IL
Self-reported in NPPES; status is on the state search
Practice location
5841 S Maryland Ave, Chicago, IL 60637
Phone
(773) 702-1000
Enumerated
Jul 15, 2011
Record last updated
Jun 19, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180824000810); accepts Medicare assignment
Medical or professional school
Vanderbilt University School Of Medicine, 2011
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 internal medicine physician records → All 7,238 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. Ma. Theresa Abaring, CRNACertified Registered Nurse Anesthetist1962647586
  2. Rouzbeh AbbasgholizadehRetina Specialist (Ophthalmology) Physician1881510030
  3. Jehad Abdalla, MDSleep Medicine (Internal Medicine) Physician1053898684
  4. Sara Abdelaziz, MDEndocrinology, Diabetes & Metabolism Physician1598258089
  5. Noor Abdelrahman, PA-CPhysician Assistant1851012413
  6. Unknown Abdul Hanan, MDBlood Banking & Transfusion Medicine Physician1750022240

Verify Luke Joseph Laffin 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 125059279    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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38% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,979 Medicare Part D claims for 420 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Luke Laffin1,979
  2. Specialty average3,176

Most prescribed

  1. Rosuvastatin Calcium197 claims
  2. Ezetimibe144 claims
  3. Repatha Sureclick118 claims
  4. Amlodipine Besylate114 claims
  5. Amlodipine-Olmesartan108 claims
  6. Atorvastatin Calcium106 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: $56,253.58

46 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk AS. 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. Luke Laffin$56,254
  2. Specialty average$1,303

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

One hospital affiliation

  1. Cleveland ClinicCleveland, OH · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Luke Joseph Laffin among 7,238 internal medicine physician records in Illinois

Luke Joseph Laffin, 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 2011, is newer than 53% of them.

  • NPI issued2011 · 53% of these records are older, 45% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2011 · median 2003 among the 3,580 with a school on file
  • Record last updated2014 · 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).

2,867 internal medicine physician records list a practice address in Chicago

They are 2,867 of the 63,379 NPPES records with a practice address in Chicago, and 7,238 internal medicine physician records in Illinois.

All 7,238 in Illinois → Every provider in Chicago → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jennifer AngelesChicago, IL 606371114945276
  2. Sameer Badlani, MDChicago, IL 606371699795302
  3. Kristine Bordenave, M.D.Chicago, IL 606371811009368
  4. Andrew DavisChicago, IL 606371275642167
  5. Hatim HassanChicago, IL 606371417970385
  6. Keiki Hinami, M.D.Chicago, IL 606371437136785
  7. David Liebovitz, MDChicago, IL 606371972564748
  8. Thomas Mason, M.D.Chicago, IL 606371730114505

Common questions

What is Luke Joseph Laffin, M.D.'s NPI number?

Luke Joseph Laffin, M.D.'s National Provider Identifier (NPI) is 1487942074, issued on Jul 15, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Luke Joseph Laffin, M.D. located?

The NPPES record lists a practice address at 5841 S Maryland Ave, Chicago, IL, 60637. Phone: (773) 702-1000. Providers update this record themselves, so call before visiting.

How can I verify Luke Joseph Laffin, M.D.'s license?

NPPES lists Illinois license number 125059279, 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 Luke Joseph Laffin, M.D. prescribe under Medicare Part D?

In 2024, Luke Joseph Laffin, M.D. had 1,979 Medicare Part D claims for 420 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.

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.