DR. WALTER HAMILTON (MD) – Internal Medicine Physician, NPI 1437119567
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
702 EMERGENCY MEDICINE in AL
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Provider Addresses for DR. WALTER HAMILTON (MD)
Mobile Post Office, 250, Saint Joseph Street, Downtown, Mobile County Commission District 1, Mobile, Mobile County, Alabama, 36601, United States
MOBILE, AL 366522048
Phone: (251) 432-4117
Fax: (251) 436-7765
Type: Mailing
1956, Duval Street, Mobile County Commission District 1, Mobile, Mobile County, Alabama, 36606, United States
MOBILE, AL 36106
Phone: (251) 471-3747
Fax: (251) 450-1445
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $28.
Total Amount is formed as General ($28) + Research ($0) + Ownership ($0) = $28.
Last reported payment date: 2024-10-01 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($16).
Total Amount
$28
General + Research + Ownership
Payments
2
Total payment records
General Amount
$28
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-01
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $16 |
| BTG International, Inc. | $12 |
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: 2004-08-25
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 |
|---|---|---|---|---|
| I20040825000926 | I | Emergency Medicine | AL | 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 |
|---|---|---|---|---|
| 99285 | Emergency department visit with high level of medical decision making | 287 | 274 | $0 |
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 204 | 195 | $0 |
| 99284 | Emergency department visit with moderate level of medical decision making | 62 | 60 | $0 |
| 99291 | Critical care, first 30-74 minutes | 55 | 54 | $0 |
| 99283 | Emergency department visit with low level of medical decision making | 16 | 16 | $0 |
Insurance plans in this area (ZIP 36652)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Emergency Medicine | AL | |
| Nurse Practitioner | AL | |
| Physician Assistant | FL | |
| Nurse Practitioner | AL | |
| Emergency Medicine | SC | |
| Emergency Medicine | AL | |
| Emergency Medicine | AL | |
| Emergency Medicine | MS | |
| Emergency Medicine | MS | |
| Emergency Medicine | AL |
Reviews
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