DR. WILLIAM SETH DUKES MD
NPI 1578821286
Emergency Medicine in Loma Linda, CA
About Dr. William Seth Dukes Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM SETH DUKES MD (NPI 1578821286) is an individual emergency medicine provider in Loma Linda, California, licensed in California (A126499) and active in the NPI registry since May 2012. He is enrolled in Medicare PECOS and is a graduate of University Of Texas Medical Branch At Galveston (2012).
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
Dr. William Seth Dukes 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 Reassignments
2Medicare enrollment records show William Dukes reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Loma Linda, CA 92354
- Reassigned Medicare billing, California enrollment
- 2,584 clinicians in this Medicare group
Redlands, CA 92373
- Reassigned Medicare billing, California enrollment
- 2,323 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92354 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.
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 William Dukes's NPI number?
The NPI number for William Dukes is 1578821286. It was assigned to this individual provider in the NPPES registry on May 1, 2012.
Where is William Dukes located?
William Dukes practices at 11234 Anderson Street Box 2000, Loma Linda, CA 92354. The listed phone number is (909) 558-7171.
What is William Dukes's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is William Dukes enrolled in Medicare?
Yes. William Dukes 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 William Dukes's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Dukes reassigns Medicare benefits to 2 organizations: Faculty Physicians And Surgeons Of Llusm (Loma Linda, CA) and Cep America - California (Redlands, 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 William Dukes'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 William Dukes was last updated on October 18, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Dr. William Seth Dukes, MD · NPI 1578821286
Emergency Medicine physician in Loma Linda, California. Individual provider, active in the CMS NPPES registry since May 1, 2012.
## Identity
- **NPI:** 1578821286 (Entity type: Individual)
- **Enumerated:** May 1, 2012
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A126499 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 11234 ANDERSON STREET BOX 2000, Loma Linda, CA 92354
- **Phone:** (909) 558-7171
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Faculty Physicians And Surgeons Of Llusm (NPI 1245605781, Loma Linda, CA); Cep America - California (NPI 1619926771, Redlands, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical Branch At Galveston, class of 2012
## Record status
- **NPPES last updated:** October 18, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1578821286) · Data from the CMS NPPES public registry.