MARY AGNES KEYES MD
NPI 1316971278
Anesthesiology in Los Angeles, CA
About Mary Agnes Keyes Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY AGNES KEYES MD (NPI 1316971278) is an individual anesthesiology provider in Los Angeles, California, licensed in California (G64754) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1979).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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
Mary Agnes Keyes Md 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 Mary Keyes reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 295 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 6
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.
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.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
LOS ANGELES, CA 90095
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 Mary Keyes's NPI number?
The NPI number for Mary Keyes is 1316971278. It was assigned to this individual provider in the NPPES registry on July 10, 2006.
Where is Mary Keyes located?
Mary Keyes practices at 757 Westwood Plz Ste 3325, Los Angeles, CA 90095. The listed phone number is (310) 267-8626.
What is Mary Keyes's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Mary Keyes enrolled in Medicare?
Yes. Mary Keyes 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 Mary Keyes's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Keyes reassigns Medicare benefits to Regents Of The University Of California (Los Angeles, 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 Mary Keyes'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 Mary Keyes was last updated on September 27, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Mary Agnes Keyes, MD · NPI 1316971278
Anesthesiology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since July 10, 2006.
## Identity
- **NPI:** 1316971278 (Entity type: Individual)
- **Enumerated:** July 10, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** G64754 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 757 WESTWOOD PLZ STE 3325, Los Angeles, CA 90095-3075
- **Phone:** (310) 267-8626 · **Fax:** (310) 267-3899
## 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:** Regents Of The University Of California (NPI 1326096165, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1979
## Record status
- **NPPES last updated:** September 27, 2024
- **Other identifiers:** Other 00G647540303 (CA); Other 00G647540 (CA); Medicaid 00G647540 (CA); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1316971278) · Data from the CMS NPPES public registry.