ROBERT P WALKER (M.D.) – Diagnostic Radiology Physician, NPI 1881690162
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,168 DIAGNOSTIC RADIOLOGY in FL
Provider Addresses for ROBERT P WALKER (M.D.)
PO BOX 1849
LEWISTON, ME 042411849
Phone: (207) 784-2554
Fax: (207) 783-4079
Type: Mailing
393 NE 5TH AVE UNIT B
DELRAY BEACH, FL 334835532
Phone: (561) 270-0003
Type: Location
Waldo County General Hospital, 118, Northport Avenue, Belfast, Waldo County, Maine, 04915, United States
BELFAST, ME 049156009
Phone: (207) 338-2500
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $124.
Total Amount is formed as General ($124) + Research ($0) + Ownership ($0) = $124.
Last reported payment date: 2024-08-09 • Largest payer in this snapshot: Stryker Corporation ($124).
Total Amount
$124
General + Research + Ownership
Payments
1
Total payment records
General Amount
$124
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-09
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Stryker Corporation | $124 |
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: 2024-11-25
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20211022001740 | I | Diagnostic Radiology | NY | TBD |
| I20211027000691 | I | Diagnostic Radiology | TX | TBD |
| I20241125003689 | I | Diagnostic Radiology | NM | 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 |
|---|---|---|---|---|
| 71045 | X-ray of chest, 1 view | 259 | 246 | $0 |
| 70450 | Ct scan head or brain without contrast | 74 | 74 | $0 |
| 74177 | Ct scan of abdomen and pelvis with contrast | 73 | 72 | $0 |
| 74176 | Ct scan of abdomen and pelvis without contrast | 56 | 54 | $0 |
| 71250 | Ct scan of chest without contrast | 32 | 32 | $0 |
Insurance plans in this area (ZIP 04241)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | OH | |
| Physician Assistant | NY | |
| - | GA | |
| - | MO | |
| Internal Medicine | AZ | |
| General Surgery | NC | |
| O B S T E T R I C S/ G Y N E C O L O G Y | AZ | |
| - | AZ | |
| Certified Registered Nurse Anesthetist (Crna) | AZ | |
| - | AZ |
Reviews
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