MRS. RYAN T CHASSEREAU CRNA
NPI 1184673139
Nurse Anesthetist, Certified Registered in Greenville, SC
About Mrs. Ryan T Chassereau Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. RYAN T CHASSEREAU CRNA (NPI 1184673139) is an individual nurse anesthetist, certified registered in Greenville, South Carolina, licensed in South Carolina (1226) and active in the NPI registry since May 2006. She is affiliated with Anmed Health, maintains 3 additional practice locations, and is a graduate of Medical University Of South Carolina College Of Medicine (1988).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
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
Mrs. Ryan T Chassereau Crna 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
4Medicare enrollment records show Ryan Chassereau reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Greenville, SC 29605
- Reassigned Medicare billing, South Carolina enrollment
- 3,281 clinicians in this Medicare group
Anderson, SC 29621
- Reassigned Medicare billing, South Carolina enrollment
- 269 clinicians in this Medicare group
Chapin, SC 29036
- Reassigned Medicare billing, South Carolina enrollment
- 1,219 clinicians in this Medicare group
Bamberg, SC 29003
- Reassigned Medicare billing, South Carolina enrollment
- 2,389 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Anmed Health
Acute Care Hospitals · Anderson, SCLexington Medical Center
Acute Care Hospitals · West Columbia, SCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29615 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.
GREENVILLE, SC 29615
GREENVILLE, SC 29615
GREENVILLE, SC 29615
GREENVILLE, SC 29615
GREENVILLE, SC 29615
GREENVILLE, SC 29615
GREENVILLE, SC 29615
GREENVILLE, SC 29615
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 Ryan Chassereau's NPI number?
The NPI number for Ryan Chassereau is 1184673139. It was assigned to this individual provider in the NPPES registry on May 8, 2006.
Where is Ryan Chassereau located?
Ryan Chassereau practices at 7 Independence Pt Ste 300, Greenville, SC 29615. The listed phone number is (864) 522-3700.
What is Ryan Chassereau's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Ryan Chassereau enrolled in Medicare?
Yes. Ryan Chassereau 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 Ryan Chassereau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Chassereau reassigns Medicare benefits to 4 organizations: Prisma Health University Medical Group (Greenville, SC), Anmed Health (Anderson, SC), Lexington Health Inc (Chapin, SC) and Musc Community Physicians (Bamberg, SC). 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 Ryan Chassereau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ryan Chassereau accept?
Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina and Cigna Healthcare list Ryan Chassereau 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 Ryan Chassereau affiliated with any hospitals?
According to CMS data, Ryan Chassereau is affiliated with Anmed Health and Lexington Medical Center.
When was this NPI record last updated?
The NPPES record for Ryan Chassereau was last updated on February 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.
# Mrs. Ryan T Chassereau, CRNA · NPI 1184673139
Nurse Anesthetist, Certified Registered physician in Greenville, South Carolina. Individual provider, active in the CMS NPPES registry since May 8, 2006.
## Identity
- **NPI:** 1184673139 (Entity type: Individual)
- **Enumerated:** May 8, 2006
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 1226 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 7 INDEPENDENCE PT STE 300, Greenville, SC 29615-4569
- **Phone:** (864) 522-3700
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Prisma Health University Medical Group (NPI 1730850322, Greenville, SC); Anmed Health (NPI 1588685333, Anderson, SC); Lexington Health Inc (NPI 1316544703, Chapin, SC); Musc Community Physicians (NPI 1841878006, Bamberg, SC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical University Of South Carolina College Of Medicine, class of 1988
## Record status
- **NPPES last updated:** February 11, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1184673139) · Data from the CMS NPPES public registry.