DR. CARL MARC WILLIAMS (M.D.) – Critical Care Medicine (Internal Medicine) Physician, NPI 1003971490
Critical Care Medicine (Internal Medicine) Physician
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Profile Insights
NPPES metrics only — not quality of care.
584 CRITICAL CARE (INTENSIVISTS) in MO
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Provider Addresses for DR. CARL MARC WILLIAMS (M.D.)
20, Deran Drive, Sabattus, Androscoggin County, Maine, 04280, United States
SABATTUS, ME 042804815
Phone:
Type: Mailing
1001, East Primrose Street, Springfield, Greene County, Missouri, 65807, United States
SPRINGFIELD, MO 658075155
Phone: (417) 875-3000
Type: Location
1001 E Primrose St
Springfield, MO 658075155
Phone: (417) 875-3000
Type: Location
3400 Ministry Pkwy
Weston, WI 544765220
Phone: (715) 393-1000
Type: Location
3400 MINISTRY PKWY
WESTON, WI 544765220
Phone: (715) 393-1000
Type: Mailing
11104 PARKVIEW CIRCLE DR
FORT WAYNE, IN 468451672
Phone: (260) 373-9700
Fax: (260) 373-9740
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: 2017-04-25
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 4 Medicare enrollment records; no due dates published yet.
Enrollment records
4
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 |
|---|---|---|---|---|
| I20070810000526 | I | Critical Care (Intensivists) | IN | TBD |
| I20080808000246 | I | Pulmonary Disease | PA | TBD |
| I20130322000205 | I | Critical Care (Intensivists) | WI | TBD |
| I20170425000384 | I | Pulmonary Disease | VA | 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 | 48 | 23 | $0 |
| 99291 | Critical care, first 30-74 minutes | 30 | 20 | $0 |
Insurance plans in this area (ZIP 04280)
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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 |
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