WILLIAM HALLMON (MD) – Gastroenterology Physician, NPI 1780603555
Gastroenterology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
382 GASTROENTEROLOGY in WI
Provider Addresses for WILLIAM HALLMON (MD)
3811 SPRING ST STE 202
RACINE, WI 534051667
Phone: (262) 687-8374
Type: Mailing
3811 Spring St Ste 202
Racine, WI 534051667
Phone: (262) 687-8374
Type: Location
1497 FAIR RD STE 102
STATESBORO, GA 304580823
Phone: (912) 486-1600
Type: Location
1497 FAIR RD STE 104
STATESBORO, GA 304580822
Phone: (912) 486-1600
Fax: (912) 871-3342
Type: Mailing
PO BOX 689022
FRANKLIN, TN 370689022
Phone: (615) 465-7211
Fax: (615) 628-6877
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 67 Open Payments records for all available years, with a total value of $1,324.
Total Amount is formed as General ($1,324) + Research ($0) + Ownership ($0) = $1,324.
Last reported payment date: 2024-12-16 • Largest payer in this snapshot: ABBVIE INC. ($523).
Total Amount
$1,324
General + Research + Ownership
Payments
67
Total payment records
General Amount
$1,324
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $523 |
| Janssen Biotech, Inc. | $251 |
| QOL Medical, LLC | $182 |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | $56 |
| PFIZER INC. | $48 |
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: 2017-10-06
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 |
|---|---|---|---|---|
| I20171006000793 | I | Gastroenterology | GA | 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 |
|---|---|---|---|---|
| 45380 | Biopsy of large bowel using a flexible endoscope | 93 | 93 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 44 | 32 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 41 | 41 | $0 |
| 43249 | Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm | 31 | 30 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 26 | 25 | $0 |
Insurance plans in this area (ZIP 53405)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | GA | |
| Physician Assistant | TN | |
| A N E S T H E S I O L O G Y | NC | |
| Nurse Practitioner | GA | |
| Internal Medicine, Gastroenterology | GA | |
| Physician Assistant | GA | |
| Internal Medicine | GA | |
| Internal Medicine, Pediatric Medicine | GA | |
| Nurse Practitioner | GA | |
| Family Practice | GA |
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