Stuart Mccarthy, M.D.
NPI 1932105715 · Otolaryngology Physician · Upland, CA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stuart Mccarthy, M.D. is a Otolaryngology Physician provider in Upland, CA (NPI 1932105715).
Provider details
- NPI number
- 1932105715
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G37891 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
153 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 48 | $93 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 28 | $131 |
| Comprehensive Hearing and Speech Recognition Test92557 | 24 | $37 |
| Test to Assess Middle Ear Function92567 | 23 | $17 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 16 | $114 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Montelukast Sodium | 39 | 22 |
| Ipratropium Bromide | 31 | — |
| Fluticasone Propionate | 25 | 13 |
| Triamcinolone Acetonide | 15 | — |
| Methylprednisolone | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-24
- Last updated
- 2013-09-04
Frequently asked questions
- What is Stuart Mccarthy's NPI number?
- Stuart Mccarthy's National Provider Identifier (NPI) is 1932105715, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stuart Mccarthy's specialty?
- Stuart Mccarthy is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Stuart Mccarthy located?
- Stuart Mccarthy's practice location on file with NPPES is 1330 San Bernardino Rd, Upland, CA 91786-4980.
- What is Stuart Mccarthy's phone number?
- The practice phone number listed in the NPPES registry for Stuart Mccarthy is (909) 981-5406.
- Does Stuart Mccarthy accept Medicare?
- Stuart Mccarthy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stuart Mccarthy's NPI active?
- Yes — Stuart Mccarthy's NPI (1932105715) is active in the NPPES registry as of the last update on 2013-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.