MR. WITOON RUAMWIJITPHONG CRNA
NPI 1063742633
Nurse Anesthetist, Certified Registered in Saint Louis, MO
About Mr. Witoon Ruamwijitphong Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. WITOON RUAMWIJITPHONG CRNA (NPI 1063742633) is an individual nurse anesthetist, certified registered in Saint Louis, Missouri, licensed in Missouri (2010005623) and active in the NPI registry since January 2010. He is enrolled in Medicare PECOS, is affiliated with Anderson Hospital, and is a graduate of Other (2009).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
Mr. Witoon Ruamwijitphong 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
10Medicare enrollment records show Witoon Ruamwijitphong reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 264 clinicians in this Medicare group
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 142 clinicians in this Medicare group
Saint Louis, MO 63122
- Reassigned Medicare billing, Missouri enrollment
- 27 clinicians in this Medicare group
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- 42 clinicians in this Medicare group
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- 106 clinicians in this Medicare group
Hazelwood, MO 63042
- Reassigned Medicare billing, Missouri enrollment
- 26 clinicians in this Medicare group
Fairview Heights, IL 62208
- Reassigned Medicare billing, Illinois enrollment
- 20 clinicians in this Medicare group
Maryville, IL 62062
- Reassigned Medicare billing, Illinois enrollment
- 149 clinicians in this Medicare group
Independence, MO 64055
- Reassigned Medicare billing, Missouri enrollment
- 146 clinicians in this Medicare group
Joliet, IL 60432
- Reassigned Medicare billing, Illinois enrollment
- 131 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Anderson Hospital
Acute Care Hospitals · Maryville, ILBarnes Jewish Hospital
Acute Care Hospitals · Saint Louis, MOSsm Health Saint Louis University Hospital
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63110 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.
Reported Quality Measures
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.
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
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 Witoon Ruamwijitphong's NPI number?
The NPI number for Witoon Ruamwijitphong is 1063742633. It was assigned to this individual provider in the NPPES registry on January 5, 2010.
Where is Witoon Ruamwijitphong located?
Witoon Ruamwijitphong practices at 1 Barnes Jewish Hospital Plz Dept Anesthesiology, Saint Louis, MO 63110. The listed phone number is (800) 862-9980.
What is Witoon Ruamwijitphong's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Witoon Ruamwijitphong enrolled in Medicare?
Yes. Witoon Ruamwijitphong 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 Witoon Ruamwijitphong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Witoon Ruamwijitphong reassigns Medicare benefits to 10 organizations: Washington University (Saint Louis, MO), Ssm Health Slu Hospital Anesthesia Physician Billing, LLC (Saint Louis, MO), Gateway Anesthesia Group LLC (Saint Louis, MO), SW Anesthesia LLC (Saint Louis, MO), South County Anesthesia Associates, Ltd. (Saint Louis, MO) and 5 more organizations, listed in the Medicare section above. 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 Witoon Ruamwijitphong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Witoon Ruamwijitphong affiliated with any hospitals?
According to CMS data, Witoon Ruamwijitphong is affiliated with Anderson Hospital, Barnes Jewish Hospital and Ssm Health Saint Louis University Hospital.
When was this NPI record last updated?
The NPPES record for Witoon Ruamwijitphong was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Mr. Witoon Ruamwijitphong, CRNA · NPI 1063742633
Nurse Anesthetist, Certified Registered physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since January 5, 2010.
## Identity
- **NPI:** 1063742633 (Entity type: Individual)
- **Enumerated:** January 5, 2010
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 2010005623 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 BARNES JEWISH HOSPITAL PLZ, DEPT ANESTHESIOLOGY, Saint Louis, MO 63110-1003
- **Phone:** (800) 862-9980 · **Fax:** (314) 362-1185
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 10 organizations under Medicare reassignment (form CMS-855R): Washington University (NPI 1528005642, Saint Louis, MO); Ssm Health Slu Hospital Anesthesia Physician Billing, LLC (NPI 1407232804, Saint Louis, MO); Gateway Anesthesia Group LLC (NPI 1457040479, Saint Louis, MO); SW Anesthesia LLC (NPI 1306319769, Saint Louis, MO); South County Anesthesia Associates, Ltd. (NPI 1821031659, Saint Louis, MO); and 5 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2009
## Record status
- **NPPES last updated:** April 17, 2025
- **Other identifiers:** Medicaid 914254909 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1063742633) · Data from the CMS NPPES public registry.