DR. STEPHEN JAMES CLARK (M.D.) – Family Medicine Physician, NPI 1538123385
Family Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
5,037 FAMILY PRACTICE in IL
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Provider Addresses for DR. STEPHEN JAMES CLARK (M.D.)
3021, Falling Waters Boulevard, Lindenhurst, Lake County, Illinois, 60046, United States
SUITE A
LINDENHURST, IL 600466793
Phone: (847) 356-9300
Fax: (847) 356-6781
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 184 Open Payments records for all available years, with a total value of $3,788.
Total Amount is formed as General ($3,788) + Research ($0) + Ownership ($0) = $3,788.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Novo Nordisk Inc ($539).
Total Amount
$3,788
General + Research + Ownership
Payments
184
Total payment records
General Amount
$3,788
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novo Nordisk Inc | $539 |
| PFIZER INC. | $514 |
| AstraZeneca Pharmaceuticals LP | $372 |
| Astellas Pharma US Inc | $310 |
| Amgen Inc. | $301 |
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: 2005-09-19
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 |
|---|---|---|---|---|
| I20050919000437 | I | Family Practice | 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 | 471 | 207 | $0 |
| 36410 | Insertion of needle into vein (3 years or older) | 262 | 158 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 89 | 80 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 66 | 55 | $0 |
| G0008 | Administration of influenza virus vaccine | 64 | 63 | $0 |
Insurance plans in this area (ZIP 60046)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | IL | |
| - | IL | |
| Physician Assistant | IL | |
| Physician Assistant | IL | |
| Physician Assistant | IL |
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