NPPES file of Aug 9, 2026

Lorin Merrill Brown, M.D.

Pediatric Orthopaedic Surgery Physician · Chicago, IL

Lorin Merrill Brown, M.D. is a pediatric orthopaedic surgery physician with a practice address in Chicago, Illinois, and NPI 1376622936, issued on Nov 3, 2006. Check the license 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1376622936
Name
Lorin Merrill Brown
Credential
M.D.
Primary taxonomy
Pediatric Orthopaedic Surgery Physician 207XP3100X
License number
01026507 IN
Self-reported in NPPES; status is on the state search
Practice location
5841 S Maryland Ave, Chicago, IL 60637
Phone
(773) 702-1000
Enumerated
Nov 3, 2006
Record last updated
Apr 15, 2024
Medicaid IDs
100168000A IN
649510 IL
Medicare enrollment
Enrolled (PECOS I20130424000110); accepts Medicare assignment
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 pediatric orthopaedic surgery physician records → All 23 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 Lorin Merrill Brown in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck 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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Bills Medicare through one group practice

  1. University OF ChicagoCrown Point, IN

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

Lorin Merrill Brown among 23 pediatric orthopaedic surgery physician records in Illinois

Lorin Merrill Brown, M.D. is one of 23 pediatric orthopaedic surgery physician records with a practice address in Illinois. 57% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 70% newer
  • In a Medicare fileYes · 57% of these records are
  • In the CMS Doctors and Clinicians fileYes · 17% of these records are
  • Record last updated2024 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XP3100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Orthopaedic Surgery Physician providers in Illinois

There are 23 pediatric orthopaedic surgery physician records in Illinois.

All 23 in Illinois → Every provider in Chicago → Pediatric Orthopaedic Surgery Physician nationwide →

The 8 pediatric orthopaedic surgery physician records with the nearest ZIP codes

  1. Monica Kogan, MDChicago, IL 606121306825435
  2. Eric Fuller, M.D.Chicago, IL 606111194036210
  3. Romie Gibly, M.D., PH.D.Chicago, IL 606111174865208
  4. Joseph Janicki, MDChicago, IL 606111427260959
  5. Brigid Marietta, APRNChicago, IL 606111871138933
  6. Neeraj Patel, MD, MPH, MBSChicago, IL 606111922369669
  7. Jesse Robinette, MDChicago, IL 606111710449798
  8. Michelle Sagan, M.D.Chicago, IL 606111487704052

Common questions

What is Lorin Merrill Brown, M.D.'s NPI number?

Lorin Merrill Brown, M.D.'s National Provider Identifier (NPI) is 1376622936, issued on Nov 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lorin Merrill Brown, 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 Lorin Merrill Brown, M.D.'s license?

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.

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.