MR. RALPH J JR. DUDA (M.D.) – Endocrinology, Diabetes & Metabolism Physician, NPI 1356436406
Endocrinology, Diabetes & Metabolism Physician
Main info
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for MR. RALPH J JR. DUDA (M.D.)
909 E REPUBLIC RD STE D200
SPRINGFIELD, MO 658076012
Phone: (417) 883-7889
Fax: (417) 890-6151
Type: Location
9228, South Mingo Road, Woodland Glens, Tulsa, Tulsa County, Oklahoma, 74133, United States
SUITE 102
TULSA, OK 741335718
Phone: (918) 592-0999
Fax: (918) 592-1021
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 259 Open Payments records for all available years, with a total value of $176,056.
Total Amount is formed as General ($176,056) + Research ($0) + Ownership ($0) = $176,056.
Last reported payment date: 2024-09-24 • Largest payer in this snapshot: Lilly USA, LLC ($169,689).
Total Amount
$176,056
General + Research + Ownership
Payments
259
Total payment records
General Amount
$176,056
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-24
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Lilly USA, LLC | $169,689 |
| Amgen Inc. | $6,176 |
| Novo Nordisk Inc | $58 |
| Mallinckrodt Hospital Products Inc. | $37 |
| UCB, Inc. | $33 |
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: 2010-03-25
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 |
|---|---|---|---|---|
| I20100325000004 | I | Endocrinology | OK | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 65807)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ENDOCRINOLOGY | OK | 83036 | Hemoglobin A1C level | 63 | 55 |
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