STEPHEN L HENNENFENT (M.D.) – Anesthesiology Physician, NPI 1518937614
Anesthesiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,631 ANESTHESIOLOGY in IL
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Provider Addresses for STEPHEN L HENNENFENT (M.D.)
PO box, Russell Road, Paoli, Tredyffrin Township, Chester County, Pennsylvania, 19301, United States
PARK RIDGE, IL 600688018
Phone: (847) 759-1560
Fax: (847) 803-1006
Type: Mailing
Palos Hospital, 12251, South 80th Avenue, Palos Heights, Palos Township, Cook County, Illinois, 60463, United States
PALOS COMMUNITY HOSPITAL
PALOS HEIGHTS, IL 604631256
Phone: (708) 923-5700
Fax: (708) 923-8848
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 $70.
Total Amount is formed as General ($70) + Research ($0) + Ownership ($0) = $70.
Last reported payment date: 2024-07-12 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($55).
Total Amount
$70
General + Research + Ownership
Payments
4
Total payment records
General Amount
$70
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $55 |
| Fisher & Paykel Healthcare Inc | $14 |
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: 2011-03-02
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 |
|---|---|---|---|---|
| I20110302000591 | I | Anesthesiology | 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 |
|---|---|---|---|---|
| 00142 | Anesthesia for lens surgery | 62 | 61 | $0 |
| 00811 | Anesthesia for other procedure on large bowel using an endoscope | 51 | 51 | $0 |
| 00731 | Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 48 | 48 | $0 |
| 00813 | Anesthesia for procedure on small and large bowel using an endoscope | 32 | 32 | $0 |
| 00812 | Anesthesia for exam of colon using an endoscope | 22 | 22 | $0 |
Insurance plans in this area (ZIP 60068)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ANESTHESIOLOGY | IL | 00142 | Anesthesia for lens surgery | 32 | 32 |
| ANESTHESIOLOGY | IL | 00790 | Anesthesia for procedure in upper abdomen including use of an endoscope | 16 | 16 |
| ANESTHESIOLOGY | IL | 01402 | Anesthesia for open or endoscopic total knee joint replacement | 17 | 17 |
| ANESTHESIOLOGY | IL | 76942 | Ultrasonic guidance imaging supervision and interpretation for insertion of needle | 23 | 23 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IL | |
| Diagnostic Radiology, Interventional Radiology | IL | |
| P A T H O L O G Y | IL | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology), Internal Medicine | IL | |
| G A S T R O E N T E R O L O G Y | IL | |
| Internal Medicine | IL | |
| Cardiac Electrophysiology, Cardiovascular Disease (Cardiology), Internal Medicine | MN | |
| - | IL | |
| Physical Therapist In Private Practice | IL | |
| Nurse Practitioner | IL |
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