WILLIAM L. KLIEFOTH (M.D.) – Surgery Physician, NPI 1003844499
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,997 GENERAL SURGERY in PA
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Provider Addresses for WILLIAM L. KLIEFOTH (M.D.)
PO BOX 8500-6335
PHILADELPHIA, PA 191786335
Phone: (215) 807-8000
Fax: (215) 807-8235
Type: Mailing
Middletown Boulevard, Langhorne Gardens, Middletown Township, Bucks County, Pennsylvania, 19047, United States
STE 101C
LANGHORNE, PA 190471818
Phone: (215) 750-6010
Fax: (215) 750-6012
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 $39.
Total Amount is formed as General ($39) + Research ($0) + Ownership ($0) = $39.
Last reported payment date: 2023-09-26 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($39).
Total Amount
$39
General + Research + Ownership
Payments
4
Total payment records
General Amount
$39
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-09-26
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $39 |
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: 2010-08-23
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 |
|---|---|---|---|---|
| I20100823000112 | I | General Surgery | PA | 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 | 61 | 33 | $0 |
| 99221 | Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 42 | 37 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 39 | 39 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 19 | 19 | $0 |
| 49650 | Repair of groin hernia using an endoscope | 12 | 12 | $0 |
Insurance plans in this area (ZIP 19178)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | PA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | PA | |
| - | PA | |
| - | PA | |
| - | PA | |
| E N D O C R I N O L O G Y | PA | |
| Emergency Medicine | PA | |
| U R O L O G Y | SC | |
| - | PA | |
| Cardiovascular Disease (Cardiology) | PA |
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