Robert Mac Donald, M.D.
NPI 1861417156 · Otolaryngology Physician · Saint Peters, MO
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Mac Donald, M.D. is a Otolaryngology Physician provider in Saint Peters, MO (NPI 1861417156).
Provider details
- NPI number
- 1861417156
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MO103596 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,900 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 1,110 | $13 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 433 | $87 |
| Professional Service for Multiple Injections of Allergen95117 | 403 | $12 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 260 | $16 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 138 | $107 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 185 | 80 |
| Montelukast Sodium | 124 | 43 |
| Prednisone | 114 | 98 |
| Ipratropium Bromide | 109 | 55 |
| Methylprednisolone | 60 | 53 |
| Cefdinir | 47 | 41 |
| Azelastine Hcl | 38 | 19 |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$237 across 10 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-13
- Last updated
- 2012-04-11
Frequently asked questions
- What is Robert Mac Donald's NPI number?
- Robert Mac Donald's National Provider Identifier (NPI) is 1861417156, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Mac Donald's specialty?
- Robert Mac Donald is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Mac Donald located?
- Robert Mac Donald's practice location on file with NPPES is 4790 Executive Centre Pkwy, Saint Peters, MO 63376-1606.
- What is Robert Mac Donald's phone number?
- The practice phone number listed in the NPPES registry for Robert Mac Donald is (636) 441-3100.
- Does Robert Mac Donald accept Medicare?
- Robert Mac Donald is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Mac Donald's NPI active?
- Yes — Robert Mac Donald's NPI (1861417156) is active in the NPPES registry as of the last update on 2012-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.