LAWRENCE DOUGLAS DREWSEN (MD) – Anesthesiology Physician, NPI 1184696239
Anesthesiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,266 ANESTHESIOLOGY in WI
Provider Addresses for LAWRENCE DOUGLAS DREWSEN (MD)
Marshfield Clinic Weston Center
3400 Ministry Pkwy
Weston, WI 544765213
Phone: (715) 393-1000
Type: Location
Viad Corporate Center, 1850, North Central Avenue, Encanto, Phoenix, Maricopa County, Arizona, 85004-4527, United States
STE 1600
PHOENIX, AZ 850044633
Phone: (602) 744-4765
Fax: (602) 744-4799
Type: Location
1850 N CENTRAL AVE STE 1600
PHOENIX, AZ 850044633
Phone: (602) 744-4765
Fax: (602) 744-4799
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $113.
Total Amount is formed as General ($113) + Research ($0) + Ownership ($0) = $113.
Last reported payment date: 2024-08-08 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($95).
Total Amount
$113
General + Research + Ownership
Payments
5
Total payment records
General Amount
$113
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-08
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $95 |
| ABBVIE INC. | $18 |
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: 2024-07-10
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20101103000244 | I | Anesthesiology | AZ | TBD |
| I20240710002889 | I | Anesthesiology | WI | 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 |
|---|---|---|---|---|
| 00811 | Anesthesia for other procedure on large bowel using an endoscope | 29 | 29 | $0 |
| 00731 | Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 28 | 28 | $0 |
| 00790 | Anesthesia for other procedure on upper abdomen | 16 | 16 | $0 |
Insurance plans in this area (ZIP 54476)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | WI | |
| N E U R O L O G Y | NY | |
| Nurse Practitioner | WI | |
| Interventional Radiology, Diagnostic Radiology | WI | |
| - | WI | |
| P S Y C H I A T R Y | IL | |
| - | MI | |
| Internal Medicine | WI | |
| Nurse Practitioner | IL | |
| Cardiovascular Disease (Cardiology) | IL |
Reviews
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