NPPES file of Aug 9, 2026

Gregory P. Nicholson, M.D.

Sports Medicine (Orthopaedic Surgery) Physician · Chicago, IL

Gregory P. Nicholson, M.D. is a sports medicine (orthopaedic surgery) physician with a practice address in Chicago, Illinois, and NPI 1477532141, issued on Jan 11, 2006. Check the license (Illinois 036105551, 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
1477532141
Name
Gregory P. Nicholson
Credential
M.D.
Primary taxonomy
Sports Medicine (Orthopaedic Surgery) Physician 207XX0005X
License number
036105551 IL
Self-reported in NPPES; status is on the state search
Practice location
1611 W Harrison St, Chicago, IL 60612
Phone
(312) 243-4244
Enumerated
Jan 11, 2006
Record last updated
Sep 18, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(312) 942-1517
Medicare enrollment
Enrolled (PECOS I20040910000742); accepts Medicare assignment
Medical or professional school
Indiana University School Of Medicine, 1986
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 sports medicine (orthopaedic surgery) physician records → All 102 in Illinois → Look up another NPI →

Also registered at 1611 W Harrison St

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

  1. Jakob Ackermann, MDSports Medicine (Orthopaedic Surgery) Physician1467340364
  2. Taylor Agate, PA-CPhysician Assistant1871196477
  3. Samer Al-Khudari, M.D.Otolaryngology Physician1699942177
  4. Jeremy Alland, MDSports Medicine (Internal Medicine) Physician1861755035
  5. Howard An, MDOrthopaedic Surgery of the Spine Physician1255310157
  6. Gunnar Andersson, MDOrthopaedic Surgery Physician1154309110

Verify Gregory P. Nicholson 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 036105551    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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20% more Medicare Part D claims than the average sports medicine (orthopaedic surgery) physician in 2024

345 Medicare Part D claims for 164 beneficiaries, against an average of 288 among the 2,562 providers of this specialty who prescribed in Part D.

  1. Gregory Nicholson345
  2. Specialty average288

Most prescribed

  1. Diclofenac Sodium179 claims
  2. Methylprednisolone75 claims
  3. Amoxicillin26 claims
  4. Meloxicam26 claims
  5. Celecoxib16 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: $1,432,675.91

28 payments; by number, the most common kind was royalty or license; the largest payer was Stryker Corporation. The 2,400 providers of this specialty with any payment received $19,779.31 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Nicholson$1,432,676
  2. Specialty average$19,779

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

Bills Medicare through 2 group practices

  1. Midwest Orthopaedics AT Rush LLCChicago, IL
  2. Orthomidwest, PLLCChicago, IL

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

Gregory P. Nicholson among 102 sports medicine (orthopaedic surgery) physician records in Illinois

Gregory P. Nicholson, M.D. is one of 102 sports medicine (orthopaedic surgery) physician records with a practice address in Illinois. 89% 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 16% of them.

  • NPI issued2006 · 16% of these records are older, 55% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 84% of these records are
  • Graduated1986 · median 2003 among the 86 with a school on file
  • Record last updated2018 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0005X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sports Medicine (Orthopaedic Surgery) Physician providers in Illinois

There are 102 sports medicine (orthopaedic surgery) physician records in Illinois.

All 102 in Illinois → Every provider in Chicago → Sports Medicine (Orthopaedic Surgery) Physician nationwide →

The 8 sports medicine (orthopaedic surgery) physician records with the nearest ZIP codes

  1. Bernard Bach, M.D.Chicago, IL 606121407835309
  2. Charles Bush-Joseph, M.D.Chicago, IL 606121821077736
  3. Jaskarndip Chahal, M.D.Chicago, IL 606121508145442
  4. Brian Cole, M.D.Chicago, IL 606121659350379
  5. Brian Forsythe, M.D.Chicago, IL 606121770557811
  6. Grant Garrigues, M.D.Chicago, IL 606121609040575
  7. Ron GilatChicago, IL 606121568177418
  8. Kyle Kunze, MDChicago, IL 606121790311793

Common questions

What is Gregory P. Nicholson, M.D.'s NPI number?

Gregory P. Nicholson, M.D.'s National Provider Identifier (NPI) is 1477532141, issued on Jan 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory P. Nicholson, M.D. located?

The NPPES record lists a practice address at 1611 W Harrison St, Chicago, IL, 60612. Phone: (312) 243-4244. Providers update this record themselves, so call before visiting.

How can I verify Gregory P. Nicholson, M.D.'s license?

NPPES lists Illinois license number 036105551, 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 Gregory P. Nicholson, M.D. prescribe under Medicare Part D?

In 2024, Gregory P. Nicholson, M.D. had 345 Medicare Part D claims for 164 beneficiaries; the average among sports medicine (orthopaedic surgery) physician prescribers was 288. 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.