DR. CHRISTOPHER MAHR (MD) – Orthopaedic Surgery Physician, NPI 1548242134
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. CHRISTOPHER MAHR (MD)
7447, West Talcott Avenue, Norwood Park, Chicago, Jefferson Township, Cook County, Illinois, 60631, United States
SUITE 500 NORTHWEST ORTHOPAEDIC ASSOCIATES LTD
CHICAGO, IL 606313745
Phone: (773) 631-7898
Fax: (773) 631-3005
Type: Mailing
900 RAND RD STE 300
DES PLAINES, IL 600162359
Phone: (847) 324-3976
Fax: (847) 929-1154
Type: Mailing
250 S NORTHWEST HWY STE 100
PARK RIDGE, IL 600684237
Phone: (773) 631-7898
Fax: (773) 631-3005
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $107.
Total Amount is formed as General ($107) + Research ($0) + Ownership ($0) = $107.
Last reported payment date: 2024-03-18 • Largest payer in this snapshot: Stryker Corporation ($32).
Total Amount
$107
General + Research + Ownership
Payments
4
Total payment records
General Amount
$107
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Stryker Corporation | $32 |
| DePuy Synthes Sales Inc. | $30 |
| Merck Sharp & Dohme LLC | $25 |
| Abbott Laboratories | $20 |
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: 2010-06-12
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 |
|---|---|---|---|---|
| I20100612000110 | 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 |
|---|---|---|---|---|
| J1030 | Injection, methylprednisolone acetate, 40 mg | 446 | 243 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 408 | 281 | $0 |
| 20610 | Aspiration and/or injection of fluid from large joint | 371 | 235 | $0 |
| 73562 | X-ray of knee, 3 views | 272 | 212 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 174 | 174 | $0 |
Insurance plans in this area (ZIP 60631)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Physical Therapist In Private Practice | IL | |
| Sports Medicine, Orthopedic Surgery | IL | |
| Physician Assistant | IL | |
| - | IL | |
| Physical Therapist In Private Practice | IL | |
| Physician Assistant | IL | |
| Orthopedic Surgery | IL | |
| Physician Assistant | IL | |
| Orthopedic Surgery | IL | |
| Physician Assistant | IL |
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