ALEXANDER SEXTRO CAA
NPI 1003423799
Anesthesiologist Assistant in Saint Louis, MO
About Alexander Sextro Caa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER SEXTRO CAA (NPI 1003423799) is an individual anesthesiologist assistant in Saint Louis, Missouri, licensed in Missouri (2021021992) and active in the NPI registry since September 2020. He is affiliated with Christian Hospital Northeast and is a graduate of University Of Missouri, Kansas City, School Of Medicine (2021).
NPPES Registry Identity
Specialties & Licenses 2
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
Alexander Sextro Caa 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 Alexander Sextro reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Louis, MO 63136
- Reassigned Medicare billing, Illinois and Missouri enrollments
- Medicare enrollment name: Midwest Anesthesia Providers Sc
- 253 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.
Christian Hospital Northeast
Acute Care Hospitals · Saint Louis, MOOther 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 63136
SAINT LOUIS, MO 63136
SAINT LOUIS, MO 63136
SAINT LOUIS, MO 63136
SAINT LOUIS, MO 63136
SAINT LOUIS, MO 63136
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 Alexander Sextro's NPI number?
The NPI number for Alexander Sextro is 1003423799. It was assigned to this individual provider in the NPPES registry on September 26, 2020.
Where is Alexander Sextro located?
Alexander Sextro practices at 11133 Dunn Rd, Saint Louis, MO 63136. The listed phone number is (314) 653-5000.
What is Alexander Sextro's specialty?
The primary specialty registered for this NPI is Anesthesiologist Assistant with taxonomy code 367H00000X.
Is Alexander Sextro enrolled in Medicare?
Yes. Alexander Sextro 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 Alexander Sextro's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Sextro reassigns Medicare benefits to Midwest Anesthesia Providers S.C (Saint Louis, MO). 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 Alexander Sextro's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alexander Sextro affiliated with any hospitals?
According to CMS data, Alexander Sextro is affiliated with Christian Hospital Northeast.
When was this NPI record last updated?
The NPPES record for Alexander Sextro was last updated on November 21, 2022. 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.
# Alexander Sextro, CAA · NPI 1003423799
Anesthesiologist Assistant physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since September 26, 2020.
## Identity
- **NPI:** 1003423799 (Entity type: Individual)
- **Enumerated:** September 26, 2020
- **Primary specialty:** Anesthesiologist Assistant · taxonomy 367H00000X
- **State license:** 2021021992 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 11133 DUNN RD, Saint Louis, MO 63136-6163
- **Phone:** (314) 653-5000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Midwest Anesthesia Providers S.C (NPI 1295189082, Saint Louis, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Missouri, Kansas City, School Of Medicine, class of 2021
## Record status
- **NPPES last updated:** November 21, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1003423799) · Data from the CMS NPPES public registry.