Margaret Carter
NPI 1790009215 · Otolaryngology Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Carter is a Otolaryngology Physician provider in San Jose, CA (NPI 1790009215).
Provider details
- NPI number
- 1790009215
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- Yes
- License
- A136997 (CA)
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
16 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
783 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) |
|---|---|---|
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 198 | $166 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 156 | $110 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 132 | $156 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 76 | $135 |
| Removal of Impacted Ear Wax69210 | 73 | $47 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Mupirocin | 104 | 91 |
| Montelukast Sodium | 76 | 24 |
| Ipratropium Bromide | 66 | 43 |
| Azelastine Hcl | 43 | 20 |
| Famotidine | 25 | 14 |
| Omeprazole | 24 | 11 |
| Ofloxacin | 23 | 15 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$314 across 3 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
- 2010-03-26
- Last updated
- 2015-07-21
Frequently asked questions
- What is Margaret Carter's NPI number?
- Margaret Carter's National Provider Identifier (NPI) is 1790009215, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Carter's specialty?
- Margaret Carter is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Carter located?
- Margaret Carter's practice location on file with NPPES is 6060 Hellyer Ave, San Jose, CA 95138-1046.
- What is Margaret Carter's phone number?
- The practice phone number listed in the NPPES registry for Margaret Carter is (408) 227-6300.
- Does Margaret Carter accept Medicare?
- Margaret Carter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Carter's NPI active?
- Yes — Margaret Carter's NPI (1790009215) is active in the NPPES registry as of the last update on 2015-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.