NPPES file of Aug 9, 2026

Keith Michael Rezin, M.D.

Orthopaedic Surgery Physician · Morris, IL

Keith Michael Rezin, M.D. is an orthopaedic surgery physician with a practice address in Morris, Illinois, and NPI 1407867393, issued on Aug 10, 2006. Check the license (Illinois 036076751, 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
1407867393
Name
Keith Michael Rezin
Credential
M.D.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License number
036076751 IL
Self-reported in NPPES; status is on the state search
Practice location
1051 W US Route 6, Morris, IL 60450
Phone
(815) 942-4875
Enumerated
Aug 10, 2006
Record last updated
May 6, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(915) 942-5046
Medicaid ID
036076751 IL
Medicare enrollment
Enrolled (PECOS I20040608001321); accepts Medicare assignment
Medical or professional school
Rush Medical College Of Rush University, 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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Also registered at 1051 W US Route 6

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

  1. Mir Ali, M.D.Orthopaedic Surgery of the Spine Physician1255317194
  2. Gail Buehl, OTAOccupational Therapy Assistant1437474517
  3. Rachel Colby, PACMedical Physician Assistant1144266578
  4. Carolyn Conaway, P.A.C.Physician Assistant1306857511
  5. Alexandra Devries, OTOccupational Therapist1285059600
  6. Jonathan Erickson, PT, MSPTPhysical Therapist1043404866

Verify Keith Michael Rezin 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 036076751
    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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68% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024

110 Medicare Part D claims for 74 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 40 claims were for opioids.

  1. Keith Rezin110
  2. Specialty average346

Most prescribed

  1. Meloxicam47 claims
  2. Tramadol Hcl23 claims
  3. Hydrocodone-Acetaminophen14 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: $36.61

2 payments; by number, the most common kind was food and beverage; the largest payer was Smith+Nephew, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Keith Rezin$37
  2. Specialty average$23,023

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. Morris HospitalMorris, IL

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

Keith Michael Rezin among 995 orthopaedic surgery physician records in Illinois

Keith Michael Rezin, M.D. is one of 995 orthopaedic surgery physician records with a practice address in Illinois. 77% 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, 49% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated1986 · median 2001 among the 556 with a school on file
  • Record last updated2021 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

5 orthopaedic surgery physician records list a practice address in Morris

They are 5 of the 385 NPPES records with a practice address in Morris, and 995 orthopaedic surgery physician records in Illinois.

The 8 orthopaedic surgery physician records with the nearest ZIP codes

  1. Raymond Meyer, M.D.Morris, IL 604501275543969
  2. Eric Ortinau, M.D.Morris, IL 604501841209459
  3. Stephen Treacy, M.D.Morris, IL 604501215946744
  4. Robert Williams, M.D.Morris, IL 604501740692839
  5. Amit Parekh, MDNew Lenox, IL 604511578068680
  6. Jonathan Cotton, MDMokena, IL 604481023273901
  7. Jacob Morgenstern, M.D.Mokena, IL 604481750475349
  8. Khaled Almansoori, MD, M.ED, MBBCHOak Lawn, IL 604531437556024

Common questions

What is Keith Michael Rezin, M.D.'s NPI number?

Keith Michael Rezin, M.D.'s National Provider Identifier (NPI) is 1407867393, issued on Aug 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Keith Michael Rezin, M.D. located?

The NPPES record lists a practice address at 1051 W US Route 6, Morris, IL, 60450. Phone: (815) 942-4875. Providers update this record themselves, so call before visiting.

How can I verify Keith Michael Rezin, M.D.'s license?

NPPES lists Illinois license number 036076751, 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 Keith Michael Rezin, M.D. prescribe under Medicare Part D?

In 2024, Keith Michael Rezin, M.D. had 110 Medicare Part D claims for 74 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.