ROBERT RIORDAN MAC DONALD (M.D.) – Otolaryngology Physician, NPI 1861417156
Otolaryngology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
320 OTOLARYNGOLOGY in MO
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Provider Addresses for ROBERT RIORDAN MAC DONALD (M.D.)
4790, Executive Centre Parkway, Saint Peters, Saint Charles County, Missouri, 63376, United States
SAINT PETERS, MO 633761606
Phone: (636) 441-3100
Fax: (636) 441-6784
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 27 Open Payments records for all available years, with a total value of $581.
Total Amount is formed as General ($581) + Research ($0) + Ownership ($0) = $581.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: Regeneron Healthcare Solutions, Inc. ($176).
Total Amount
$581
General + Research + Ownership
Payments
27
Total payment records
General Amount
$581
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2011-03-23
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 |
|---|---|---|---|---|
| I20110323000563 | 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 |
|---|---|---|---|---|
| 95165 | Professional service for preparation and provision of 1 or more antigens | 1,126 | 32 | $0 |
| 95004 | Test for allergy using allergenic extract | 480 | 12 | $0 |
| 95024 | Test for allergy using allergenic extract injected into skin | 453 | 12 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 362 | 282 | $0 |
| 95117 | Professional service for multiple injections of allergen | 326 | 20 | $0 |
Insurance plans in this area (ZIP 63376)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MO | |
| Nurse Practitioner | MO | |
| Nurse Practitioner | MO | |
| Otolaryngology, Allergy/Immunology | MO | |
| Qualified Audiologist | MO | |
| O T O L A R Y N G O L O G Y | MO | |
| Nurse Practitioner | MO | |
| Qualified Audiologist | MO | |
| Otolaryngology, Allergy/Immunology | MO | |
| Qualified Audiologist | MO |
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