ELLIOTT W FILLER MD
NPI 1043263023
Emergency Medicine in Watertown, SD
About Elliott W Filler Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELLIOTT W FILLER MD (NPI 1043263023) is an individual emergency medicine provider in Watertown, South Dakota, licensed in South Dakota (3447) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Prairie Lakes Healthcare System, Inc, and is a graduate of University Of North Dakota School Of Medicine (1988).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
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
Elliott W Filler 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 Elliott Filler reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Watertown, SD 57201
- Reassigned Medicare billing, South Dakota enrollment
- 109 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 4
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Prairie Lakes Healthcare System, Inc
Acute Care Hospitals · Watertown, SDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 57201 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.
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.
WATERTOWN, SD 57201
WATERTOWN, SD 57201
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 Elliott Filler's NPI number?
The NPI number for Elliott Filler is 1043263023. It was assigned to this individual provider in the NPPES registry on May 18, 2006.
Where is Elliott Filler located?
Elliott Filler practices at 401 9th Ave NW, Watertown, SD 57201. The listed phone number is (605) 882-7810.
What is Elliott Filler's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Elliott Filler enrolled in Medicare?
Yes. Elliott Filler 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 Elliott Filler's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elliott Filler reassigns Medicare benefits to Prairie Lakes Health Care System Inc (Watertown, SD). 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 Elliott Filler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Elliott Filler accept?
Health plans from Sanford Health Plan and Wellmark of South Dakota, Inc. list Elliott Filler as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Elliott Filler affiliated with any hospitals?
According to CMS data, Elliott Filler is affiliated with Prairie Lakes Healthcare System, Inc.
When was this NPI record last updated?
The NPPES record for Elliott Filler was last updated on October 9, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Elliott W Filler, MD · NPI 1043263023
Emergency Medicine physician in Watertown, South Dakota. Individual provider, active in the CMS NPPES registry since May 18, 2006.
## Identity
- **NPI:** 1043263023 (Entity type: Individual)
- **Enumerated:** May 18, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 3447 (South Dakota)
- **Sole proprietor:** No
## Practice location
- **Address:** 401 9TH AVE NW, Watertown, SD 57201-1548
- **Phone:** (605) 882-7810
## 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:** Prairie Lakes Health Care System Inc (NPI 1720166002, Watertown, SD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of North Dakota School Of Medicine, class of 1988
## Record status
- **NPPES last updated:** October 9, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1043263023) · Data from the CMS NPPES public registry.