DR. MARK S CHOH (M.D.) – Surgery Physician, NPI 1023283611
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,422 GENERAL SURGERY in IL
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Provider Addresses for DR. MARK S CHOH (M.D.)
3245, Grove Avenue, Berwyn, Cook County, Illinois, 60402, United States
#202
BERWYN, IL 604023474
Phone: (708) 484-0621
Fax: (708) 484-0250
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 63 Open Payments records for all available years, with a total value of $1,324.
Total Amount is formed as General ($1,324) + Research ($0) + Ownership ($0) = $1,324.
Last reported payment date: 2024-12-21 • Largest payer in this snapshot: AIMMUNE THERAPEUTICS, INC. ($370).
Total Amount
$1,324
General + Research + Ownership
Payments
63
Total payment records
General Amount
$1,324
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-21
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AIMMUNE THERAPEUTICS, INC. | $370 |
| Novo Nordisk Inc | $308 |
| Takeda Pharmaceuticals U.S.A., Inc. | $155 |
| Centinel Spine, LLC | $104 |
| W. L. Gore & Associates, Inc. | $86 |
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: 2009-07-27
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 |
|---|---|---|---|---|
| I20090727000705 | I | General 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 |
|---|---|---|---|---|
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 134 | 94 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 53 | 45 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 44 | 44 | $0 |
| 99221 | Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 18 | 18 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 15 | 15 | $0 |
Insurance plans in this area (ZIP 60402)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | IL | |
| Endocrinology, Internal Medicine | IL | |
| E N D O C R I N O L O G Y | IL | |
| P S Y C H I A T R Y | IL | |
| Family Practice | IL | |
| Internal Medicine | IL | |
| P S Y C H I A T R Y | TN | |
| O B S T E T R I C S/ G Y N E C O L O G Y | IL | |
| Internal Medicine | IL | |
| Internal Medicine | IL |
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