KARL E BAUM (MD) – Hospitalist Physician, NPI 1497749402
Hospitalist Physician
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Profile Insights
NPPES metrics only — not quality of care.
2,939 INTERNAL MEDICINE in WI
Provider Addresses for KARL E BAUM (MD)
1506 S Oneida St
Appleton, WI 549151305
Phone: (920) 738-2000
Type: Location
PO BOX 735044
CHICAGO, IL 606735044
Phone: (800) 326-2250
Type: Mailing
855 N WESTHAVEN DR
OSHKOSH, WI 549047668
Phone: (920) 303-8700
Type: Location
Ascension Saint Elizabeth Hospital, 1506, South Oneida Street, Appleton, Outagamie County, Wisconsin, 54915, United States
APPLETON, WI 549151305
Phone: (920) 738-2000
Type: Mailing
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: 2005-02-15
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 |
|---|---|---|---|---|
| I20050215000544 | I | Internal Medicine | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 186 | 70 | $0 |
| 99239 | Hospital discharge day management, more than 30 minutes | 53 | 52 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 47 | 21 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 34 | 22 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 30 | 30 | $0 |
Insurance plans in this area (ZIP 54915)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | WI | |
| Family Practice | WI | |
| H E M A T O L O G Y/ O N C O L O G Y | WI | |
| Hospitalist, Internal Medicine | WI | |
| Family Practice | WI | |
| Geriatric Medicine, Internal Medicine | WI | |
| - | WI | |
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| Hospitalist, Internal Medicine | MI | |
| Obstetrics/Gynecology, Osteopathic Manipulative Medicine | WI |
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