JOHN RUSSELL WIESER MD
NPI 1023696911
Anesthesiology in Charleston, SC
About John Russell Wieser Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN RUSSELL WIESER MD (NPI 1023696911) is an individual anesthesiology provider in Charleston, South Carolina, licensed in South Carolina (94042) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Bon Secours-st Francis Xavier Hospital, and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
John Russell Wieser 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 John Wieser reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Charleston, SC 29414
- Reassigned Medicare billing, South Carolina enrollment
- Medicare enrollment name: Bon Secours St Francis Xavier Hospital Inc
- 375 clinicians in this Medicare group
Charleston, SC 29407
- Reassigned Medicare billing, South Carolina enrollment
- Medicare enrollment name: Anesthesia Associates Of Charleston PA
- 133 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Bon Secours-St Francis Xavier Hospital
Acute Care Hospitals · Charleston, SCRoper Hospital
Acute Care Hospitals · Charleston, SCMount Pleasant Hospital
Acute Care Hospitals · Mount Pleasant, 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.
CHARLESTON, SC 29414
CHARLESTON, SC 29414
CHARLESTON, SC 29414
CHARLESTON, SC 29414
CHARLESTON, SC 29414
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 John Wieser's NPI number?
The NPI number for John Wieser is 1023696911. It was assigned to this individual provider in the NPPES registry on March 31, 2021.
Where is John Wieser located?
John Wieser practices at 2095 Henry Tecklenburg Dr, Charleston, SC 29414. The listed phone number is (843) 402-1436.
What is John Wieser's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Wieser enrolled in Medicare?
Yes. John Wieser 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 John Wieser's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Wieser reassigns Medicare benefits to 2 organizations: Bon Secours St. Francis Xavier Hosptial, Inc. (Charleston, SC) and Anesthesia Associates Of Charleston, P.A. (Charleston, 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 John Wieser's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John Wieser affiliated with any hospitals?
According to CMS data, John Wieser is affiliated with Bon Secours-St Francis Xavier Hospital, Roper Hospital and Mount Pleasant Hospital.
When was this NPI record last updated?
The NPPES record for John Wieser was last updated on August 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# John Russell Wieser, MD · NPI 1023696911
Anesthesiology physician in Charleston, South Carolina. Individual provider, active in the CMS NPPES registry since March 31, 2021.
## Identity
- **NPI:** 1023696911 (Entity type: Individual)
- **Enumerated:** March 31, 2021
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 94042 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 2095 HENRY TECKLENBURG DR, Charleston, SC 29414-5733
- **Phone:** (843) 402-1436
## 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): Bon Secours St. Francis Xavier Hosptial, Inc. (NPI 1578929634, Charleston, SC); Anesthesia Associates Of Charleston, P.A. (NPI 1396776670, Charleston, SC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Virginia School Of Medicine, class of 2021
## Record status
- **NPPES last updated:** August 7, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1023696911) · Data from the CMS NPPES public registry.