MR. RONALD J WALKER (M.D.) – Otolaryngology Physician, NPI 1336340009
Otolaryngology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
160 OTOLARYNGOLOGY in CT
Provider Addresses for MR. RONALD J WALKER (M.D.)
20 YORK ST
NEW HAVEN, CT 065103220
Phone: (203) 785-5430
Type: Location
3660, Vista Avenue, Tiffany, City of Saint Louis, Missouri, 63110, United States
SUITE 312
ST. LOUIS, MO 63110
Phone: (314) 977-5110
Fax: (314) 977-5119
Type: Location
SSM Health Saint Louis University Hospital, 3635, Vista Avenue, Tiffany, City of Saint Louis, Missouri, 63110, United States
GFDT
ST. LOUIS, MO 63110
Phone: (314) 577-8884
Fax: (314) 268-5111
Type: Mailing
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 $38.
Total Amount is formed as General ($38) + Research ($0) + Ownership ($0) = $38.
Last reported payment date: 2024-04-18 • Largest payer in this snapshot: Ethicon US, LLC ($24).
Total Amount
$38
General + Research + Ownership
Payments
2
Total payment records
General Amount
$38
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-04-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Ethicon US, LLC | $24 |
| Inspire Medical Systems, Inc. | $13 |
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: 2010-07-02
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 |
|---|---|---|---|---|
| I20100702000360 | I | Otolaryngology | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 129 | 98 | $0 |
| 31575 | Diagnostic exam of voice box using a flexible endoscope | 53 | 43 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 23 | 23 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 15 | 14 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 12 | 11 | $0 |
Insurance plans in this area (ZIP 06510)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Anesthesiology Assistant | MO | |
| Pediatric Medicine, Hematology/Oncology | TN | |
| Nurse Practitioner | IL | |
| Certified Registered Nurse Anesthetist (Crna) | MO | |
| Pediatric Medicine | IL | |
| G A S T R O E N T E R O L O G Y | WV | |
| Pediatric Medicine, Cardiovascular Disease (Cardiology) | MO | |
| Infectious Disease | OH | |
| Physician Assistant | MO | |
| Pediatric Medicine, Cardiovascular Disease (Cardiology) | MO |
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