ELLIOT CHRISTOPHER WILLIAMS M.D.
NPI 1447660055
Surgery - Surgical Critical Care in San Diego, CA
About Elliot Christopher Williams M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELLIOT CHRISTOPHER WILLIAMS M.D. (NPI 1447660055) is an individual surgical critical care provider in San Diego, California, licensed in California (A140929) and active in the NPI registry since May 2014. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of California, San Diego School Of Medicine (2014).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 2
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
Elliot Christopher Williams M.d. 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 Reassignments
3Medicare enrollment records show Elliot Williams reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 2,445 clinicians in this Medicare group
Fresno, CA 93721
- Reassigned Medicare billing, California enrollment
- 320 clinicians in this Medicare group
Fresno, CA 93721
- 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 3
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.
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.
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
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 Elliot Williams's NPI number?
The NPI number for Elliot Williams is 1447660055. It was assigned to this individual provider in the NPPES registry on May 5, 2014.
Where is Elliot Williams located?
Elliot Williams practices at 200 W Arbor Dr, San Diego, CA 92103. The listed phone number is (800) 926-8273.
What is Elliot Williams's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Critical Care, with taxonomy code 2086S0102X.
Is Elliot Williams enrolled in Medicare?
Yes. Elliot Williams 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 organizations bill Medicare for Elliot Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elliot Williams reassigns Medicare benefits to 3 organizations: Usc Care Medical Group, Inc (Los Angeles, CA), University Faculty Associates, Inc. (Fresno, CA) and Central California Faculty Medical Group, Inc. (Fresno, CA). Each 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 Elliot Williams'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 Elliot Williams was last updated on September 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 48 days 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.
# Elliot Christopher Williams, M.D. · NPI 1447660055
Surgical Critical Care physician in San Diego, California. Individual provider, active in the CMS NPPES registry since May 5, 2014.
## Identity
- **NPI:** 1447660055 (Entity type: Individual)
- **Enumerated:** May 5, 2014
- **Primary specialty:** Surgery - Surgical Critical Care · taxonomy 2086S0102X
- **State license:** A140929 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 W ARBOR DR, San Diego, CA 92103-9000
- **Phone:** (800) 926-8273
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Usc Care Medical Group, Inc (NPI 1902846306, Los Angeles, CA); University Faculty Associates, Inc. (NPI 1073911137, Fresno, CA); Central California Faculty Medical Group, Inc. (NPI 1457603573, Fresno, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Diego School Of Medicine, class of 2014
## Record status
- **NPPES last updated:** September 4, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1447660055) · Data from the CMS NPPES public registry.