ANDREW L WALKER (M.D.) – Radiation Oncology Physician, NPI 1518229772
Radiation Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
312 RADIATION ONCOLOGY in IL
Provider Addresses for ANDREW L WALKER (M.D.)
3249 Oak Park Ave
Medical Education
Berwyn, IL 604023429
Phone: (708) 783-3403
Type: Location
355 Ridge Ave
Evanston, IL 602023328
Phone: (847) 316-4000
Type: Location
1229 N PAULINA ST
UNIT 2
CHICAGO, IL 606223851
Phone:
Type: Mailing
902 N RIVERSIDE RD STE 201
SAINT JOSEPH, MO 64507
Phone: (816) 271-7280
Fax: (816) 271-1047
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 80 Open Payments records for all available years, with a total value of $1,584.
Total Amount is formed as General ($1,584) + Research ($0) + Ownership ($0) = $1,584.
Last reported payment date: 2024-12-11 • Largest payer in this snapshot: Janssen Biotech, Inc. ($144).
Total Amount
$1,584
General + Research + Ownership
Payments
80
Total payment records
General Amount
$1,584
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Janssen Biotech, Inc. | $144 |
| AstraZeneca Pharmaceuticals LP | $97 |
| ABBVIE INC. | $90 |
| Merck Sharp & Dohme LLC | $88 |
| GlaxoSmithKline, LLC. | $78 |
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: 2018-08-16
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 |
|---|---|---|---|---|
| I20180816000952 | I | Radiation Oncology | MO | 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 |
|---|---|---|---|---|
| 77014 | Ct guidance for insertion of radiation therapy fields | 1,830 | 108 | $0 |
| 77300 | Calculation of radiation therapy dose | 560 | 147 | $0 |
| 77427 | Radiation treatment management, 5 treatment sessions | 444 | 109 | $0 |
| G6002 | Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy | 308 | 43 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 255 | 185 | $0 |
Insurance plans in this area (ZIP 60402)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | IN | |
| Cardiovascular Disease (Cardiology) | MO | |
| Family Practice | MO | |
| Certified Clinical Nurse Specialist (Cns) | MO | |
| Internal Medicine | MO | |
| A N E S T H E S I O L O G Y | MO | |
| - | MO | |
| Nurse Practitioner | MO | |
| - | MO | |
| - | MO |
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