MARGARET CARTER
NPI 1790009215
Otolaryngology in San Jose, CA
About Margaret Carter NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET CARTER (NPI 1790009215) is an individual otolaryngology provider in San Jose, California, licensed in California (A136997) and active in the NPI registry since March 2010. She is enrolled in Medicare PECOS and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (2010).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Margaret Carter is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Margaret Carter reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Castro Valley, CA 94546
- Reassigned Medicare billing, California enrollment
- 347 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 11
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95138 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Margaret Carter's NPI number?
The NPI number for Margaret Carter is 1790009215. It was assigned to this individual provider in the NPPES registry on March 26, 2010.
Where is Margaret Carter located?
Margaret Carter practices at 6060 Hellyer Ave Suite 150, San Jose, CA 95138. The listed phone number is (408) 227-6300.
What is Margaret Carter's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Margaret Carter enrolled in Medicare?
Yes. Margaret Carter is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Margaret Carter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Carter reassigns Medicare benefits to Bass Medical Group (Castro Valley, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Margaret Carter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Margaret Carter was last updated on July 21, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Margaret Carter · NPI 1790009215
Otolaryngology physician in San Jose, California. Individual provider, active in the CMS NPPES registry since March 26, 2010.
## Identity
- **NPI:** 1790009215 (Entity type: Individual)
- **Enumerated:** March 26, 2010
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **State license:** A136997 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 6060 HELLYER AVE, SUITE 150, San Jose, CA 95138-1046
- **Phone:** (408) 227-6300 · **Fax:** (408) 227-6314
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Bass Medical Group (NPI 1093181646, Castro Valley, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loyola University Of Chicago, Stritch School Of Medicine, class of 2010
## Record status
- **NPPES last updated:** July 21, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1790009215) · Data from the CMS NPPES public registry.