ALLEN D WILLIAMS (MD) – Internal Medicine Physician, NPI 1073601324
Internal Medicine Physician
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Profile Insights
NPPES metrics only — not quality of care.
8,828 INTERNAL MEDICINE in IL
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Provider Addresses for ALLEN D WILLIAMS (MD)
PO BOX 78866
MILWAUKEE, WI 532788866
Phone: (779) 696-7150
Type: Mailing
SwedishAmerican Creekside Medical Center, 3505, North Bell School Road, Rockford, Winnebago County, Illinois, 61114, United States
ROCKFORD, IL 61114
Phone: (779) 696-0300
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: 2010-01-23
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 |
|---|---|---|---|---|
| I20100123000174 | I | Internal Medicine | IL | 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 |
|---|---|---|---|---|
| 36415 | Insertion of needle into vein for collection of blood sample | 492 | 301 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 470 | 282 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 205 | 171 | $0 |
| G0008 | Administration of influenza virus vaccine | 70 | 69 | $0 |
| 90662 | Influenza vaccine split virus, preservative free | 61 | 60 | $0 |
Insurance plans in this area (ZIP 53278)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Advanced Heart Failure And Transplant Cardiology, Cardiovascular Disease (Cardiology), Cardiovascular Disease (Cardiology), Internal Medicine | WI | |
| Thoracic Surgery, Cardiac Surgery | MI | |
| Physical Therapist In Private Practice | IL | |
| - | IL | |
| General Surgery | GA | |
| N E U R O S U R G E R Y | IL | |
| - | WI | |
| Orthopedic Surgery | WI | |
| Physician Assistant | WI | |
| - | WI |
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