DR. KEITH MICHAEL REZIN (M.D.) – Orthopaedic Surgery Physician, NPI 1407867393
Orthopaedic Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,265 ORTHOPEDIC SURGERY in IL
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Provider Addresses for DR. KEITH MICHAEL REZIN (M.D.)
725 SCHOOL ST STE A
MORRIS, IL 604501207
Phone: (815) 941-9124
Fax: (815) 941-4363
Type: Mailing
6, Tabor, Parsippany-Troy Hills, Morris County, New Jersey, United States
SUITE 100
MORRIS, IL 604503349
Phone: (815) 942-4875
Fax: (915) 942-5046
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 11 Open Payments records for all available years, with a total value of $191.
Total Amount is formed as General ($191) + Research ($0) + Ownership ($0) = $191.
Last reported payment date: 2024-05-07 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($60).
Total Amount
$191
General + Research + Ownership
Payments
11
Total payment records
General Amount
$191
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-05-07
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $60 |
| SANOFI-AVENTIS U.S. LLC | $44 |
| Smith+Nephew, Inc. | $42 |
| Medline Industries LP | $17 |
| Stryker Corporation | $15 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-06-08
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040608001321 | I | Orthopedic Surgery | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| J3301 | Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 809 | 130 | $0 |
| 20610 | Aspiration and/or injection of fluid from large joint | 220 | 158 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 194 | 173 | $0 |
| 73562 | X-ray of knee, 3 views | 166 | 155 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 114 | 105 | $0 |
Insurance plans in this area (ZIP 60450)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ORTHOPEDIC SURGERY | IL | 27447 | Repair of knee joint | 73 | 71 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | IL | |
| Nurse Practitioner | IL | |
| Nurse Practitioner | IL | |
| Internal Medicine, Pediatric Medicine | IL | |
| - | IL | |
| Nurse Practitioner | IL | |
| Orthopedic Surgery | NY | |
| Nurse Practitioner | IL | |
| Family Practice | IL | |
| Allergy/Immunology, Internal Medicine | IL |
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