JAMES M MOK (MD) – Orthopaedic Surgery of the Spine Physician, NPI 1831271436
Orthopaedic Surgery of the Spine Physician
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Profile Insights
NPPES metrics only — not quality of care.
1,265 ORTHOPEDIC SURGERY in IL
Provider Addresses for JAMES M MOK (MD)
1860 PAYSPHERE CIR
CHICAGO, IL 606741447
Phone: (630) 469-2000
Type: Mailing
9600 GROSS POINT RD STE 1200
SKOKIE, IL 600761214
Phone: (847) 866-7846
Fax: (224) 251-5150
Type: Mailing
300 PASTEUR DR
STANFORD, CA 943052200
Phone: (650) 723-4000
Type: Mailing
East Brush Hill Road, Elmhurst, DuPage County, Illinois, 60126, United States
ELMHURST, IL 601265660
Phone: (630) 501-0630
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 57 Open Payments records for all available years, with a total value of $123,446.
Total Amount is formed as General ($123,446) + Research ($0) + Ownership ($0) = $123,446.
Last reported payment date: 2024-11-27 • Largest payer in this snapshot: MiRus, LLC ($106,445).
Total Amount
$123,446
General + Research + Ownership
Payments
57
Total payment records
General Amount
$123,446
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-27
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| MiRus, LLC | $106,445 |
| Amplify Surgical, Inc. | $9,441 |
| SI-BONE, INC. | $5,639 |
| NuVasive, Inc. | $527 |
| Stryker Corporation | $279 |
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: 2013-10-22
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20061120000379 | I | Orthopedic Surgery | CA | TBD |
| I20131022000724 | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 225 | 163 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 133 | 133 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 59 | 53 | $0 |
| 22853 | Insertion of cage or mesh device to spine bone and disc space during spine fusion | 23 | 13 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 16 | 16 | $0 |
Insurance plans in this area (ZIP 60674)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| O B S T E T R I C S/ G Y N E C O L O G Y | TX | |
| - | CA | |
| - | CA | |
| - | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| Hematology, Medical Oncology | NY | |
| Certified Registered Nurse Anesthetist (Crna) | TX | |
| Nurse Practitioner | CA | |
| Nurse Practitioner | CA | |
| Neuropsychiatry, Neurology | CA |
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