JOHN M LESCHKE (MD) – Anesthesiology Physician, NPI 1083653125
Anesthesiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for JOHN M LESCHKE (MD)
3420, Jackson Street, Oshkosh, Town of Oshkosh, Winnebago County, Wisconsin, 54901, United States
SUITE E
OSHKOSH, WI 549018144
Phone: (920) 426-2211
Fax: (920) 426-2231
Type: Mailing
Ascension Mercy Hospital, 500, South Oakwood Road, Oshkosh, Town of Algoma, Winnebago County, Wisconsin, 54904, United States
OSHKOSH, WI 549047944
Phone: (920) 223-2000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2005-04-05
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20050405001131 | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 54901)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ANESTHESIOLOGY | WI | 76942 | Ultrasonic guidance imaging supervision and interpretation for insertion of needle | 12 | 12 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | FL | |
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| Certified Registered Nurse Anesthetist (Crna) | IL | |
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| - | WI | |
| Certified Registered Nurse Anesthetist (Crna) | IN | |
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| - | WI | |
| - | WI | |
| Certified Registered Nurse Anesthetist (Crna) | WI |
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