SETH J WIDMER AA-C
NPI 1336491158
Anesthesiologist Assistant in Rock Hill, SC
About Seth J Widmer Aa-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SETH J WIDMER AA-C (NPI 1336491158) is an individual anesthesiologist assistant in Rock Hill, South Carolina, licensed in South Carolina (27) and active in the NPI registry since October 2012. He is affiliated with Piedmont Medical Center and is a graduate of Other (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
Seth J Widmer Aa-c 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 Seth Widmer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rock Hill, SC 29732
- Reassigned Medicare billing, South Carolina enrollment
- Medicare enrollment name: Anesthesia Associates Of Rock Hill PA
- 98 clinicians in this Medicare group
Greenville, NC 27834
- Reassigned Medicare billing, North Carolina enrollment
- 1,097 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
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.
Piedmont Medical Center
Acute Care Hospitals · Rock Hill, SCOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROCK HILL, SC 29732
ROCK HILL, SC 29732
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 Seth Widmer's NPI number?
The NPI number for Seth Widmer is 1336491158. It was assigned to this individual provider in the NPPES registry on October 3, 2012.
Where is Seth Widmer located?
Seth Widmer practices at 222 S Herlong Ave, Rock Hill, SC 29732. The listed phone number is (803) 329-6711.
What is Seth Widmer's specialty?
The primary specialty registered for this NPI is Anesthesiologist Assistant with taxonomy code 367H00000X.
Is Seth Widmer enrolled in Medicare?
Yes. Seth Widmer 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 Seth Widmer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Seth Widmer reassigns Medicare benefits to 2 organizations: Anesthesia Associates Of Rock Hill, P.A. (Rock Hill, SC) and East Carolina Anesthesia Associates, PLLC (Greenville, NC). 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 Seth Widmer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Seth Widmer affiliated with any hospitals?
According to CMS data, Seth Widmer is affiliated with Piedmont Medical Center.
When was this NPI record last updated?
The NPPES record for Seth Widmer was last updated on October 3, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Seth J Widmer, AA-C · NPI 1336491158
Anesthesiologist Assistant physician in Rock Hill, South Carolina. Individual provider, active in the CMS NPPES registry since October 3, 2012.
## Identity
- **NPI:** 1336491158 (Entity type: Individual)
- **Enumerated:** October 3, 2012
- **Primary specialty:** Anesthesiologist Assistant · taxonomy 367H00000X
- **State license:** 27 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 222 S HERLONG AVE, Rock Hill, SC 29732-1158
- **Phone:** (803) 329-6711 · **Fax:** (803) 329-5120
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Anesthesia Associates Of Rock Hill, P.A. (NPI 1811977200, Rock Hill, SC); East Carolina Anesthesia Associates, PLLC (NPI 1205996519, Greenville, NC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** October 3, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1336491158) · Data from the CMS NPPES public registry.