DR. JAMES C CLANAHAN (MD) – Surgery Physician, NPI 1770531956
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for DR. JAMES C CLANAHAN (MD)
1414 CROSS STREET
SUITE 330
SHILOH, IL 622692998
Phone: (618) 277-7400
Fax: (618) 277-7422
Type: Mailing
340, West Lincoln Street, Belleville, Saint Clair County, Illinois, 62220, United States
SUITE 500
BELLEVILLE, IL 622201900
Phone: (618) 277-7400
Type: Mailing
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 $171.
Total Amount is formed as General ($171) + Research ($0) + Ownership ($0) = $171.
Last reported payment date: 2024-07-31 • Largest payer in this snapshot: Phathom Pharmaceuticals, Inc. ($110).
Total Amount
$171
General + Research + Ownership
Payments
4
Total payment records
General Amount
$171
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-31
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Phathom Pharmaceuticals, Inc. | $110 |
| Myriad Genetic Laboratories, Inc. | $41 |
| Tactile Systems Technology Inc | $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: 2005-02-21
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 |
|---|---|---|---|---|
| I20050221000120 | 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 |
|---|---|---|---|---|
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 53 | 38 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 44 | 38 | $0 |
| 19083 | Biopsy of breast and placement of locating device using ultrasound, first growth | 31 | 31 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 28 | 23 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 27 | 27 | $0 |
Insurance plans in this area (ZIP 62269)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GENERAL SURGERY | IL | 38900 | Lymph node imaging during surgery | 38 | 38 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Colorectal Surgery (Proctology), General Surgery | GA | |
| Family Practice | IL | |
| General Surgery | IL | |
| Physician Assistant | IL | |
| Family Practice | IL | |
| Family Practice | IL | |
| Family Practice | MO | |
| General Surgery | IL | |
| Family Practice | IL | |
| Nurse Practitioner | IL |
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