Quick answers
- Does Margaret S. Carter accept Medicare assignment?
- Yes. Medicare's clinician data says Margaret S. Carter accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Margaret S. Carter see?
- In 2024, CMS data shows 269 Original Medicare patients and 860 services for Margaret S. Carter. This counts Original Medicare only and measures volume, not quality.
- What is Margaret S. Carter's NPI number?
- 1790009215. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Margaret S. Carter, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 269 |
|---|---|
| Services billed to Medicare | 860 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Diagnostic exam of voice box using a flexible endoscope (31575)198 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)156 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)132 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)76 services
- Removal of impacted ear wax (69210)73 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure71%
- Arthritis45%
- Ischemic heart disease32%
- Diabetes23%
- Asthma20%
Hospitals where Margaret S. Carter works
Medicare's Facility Affiliation Data lists Margaret S. Carter at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Good Samaritan HospitalSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050380
Practice locations
Addresses where Margaret S. Carter is enrolled with Medicare (CMS data updated October 2, 2026).
- 15899 Los Gatos Almaden Rd, Suite 12Los Gatos, CA 95032 (408) 358‑2663
- 2577 Samaritan Dr, Suite 765San Jose, CA 95124 (408) 358‑6163
- 6060 Hellyer Ave, Suite 150San Jose, CA 95138 (408) 351‑6063
Group practices
Medicare enrollment lists Margaret S. Carter as a member of this group (CMS data updated October 2, 2026).
- Bass Medical Group291 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in Los Gatos
Clinicians with the same Medicare primary specialty in Los Gatos, CA — not a recommendation.
Other clinicians in Bass Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loyola University Of Chicago, Stritch School Of Medicine |
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790009215 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians