DR. JEFFREY ALEXANDER D.O.
NPI 1669539987
Anesthesiology in Ballwin, MO
About Dr. Jeffrey Alexander D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JEFFREY ALEXANDER D.O. (NPI 1669539987) is an individual anesthesiology provider in Ballwin, Missouri, licensed in Missouri (2000157476) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Alton Memorial Hospital, and is a graduate of At Still University Of Health Sciences, College Of Osteo Med, Kirksville (1996).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Jeffrey Alexander D.o. 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
6Medicare enrollment records show Jeffrey Alexander reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
St Louis, MO 63118
- Reassigned Medicare billing, Illinois enrollment
- 25 clinicians in this Medicare group
Saint Louis, MO 63136
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Midwest Anesthesia Providers Sc
- 253 clinicians in this Medicare group
Maryville, IL 62062
- Reassigned Medicare billing, Illinois and Missouri enrollments
- 149 clinicians in this Medicare group
Maryville, IL 62062
- Reassigned Medicare billing, Illinois enrollment
- 42 clinicians in this Medicare group
Springfield, IL 62769
- Reassigned Medicare billing, Illinois enrollment
- 826 clinicians in this Medicare group
Wilkes Barre, PA 18764
- Reassigned Medicare billing, Illinois enrollment
- 95 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.
Alton Memorial Hospital
Acute Care Hospitals · Alton, ILOther Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Jeffrey Alexander's NPI number?
The NPI number for Jeffrey Alexander is 1669539987. It was assigned to this individual provider in the NPPES registry on January 3, 2007.
Where is Jeffrey Alexander located?
Jeffrey Alexander practices at 351 Consort Dr, Ballwin, MO 63011. The listed phone number is (636) 200-4242.
What is Jeffrey Alexander's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Jeffrey Alexander enrolled in Medicare?
Yes. Jeffrey Alexander 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 Jeffrey Alexander's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jeffrey Alexander reassigns Medicare benefits to 6 organizations: Specialists In Anesthesia PC (St Louis, MO), Midwest Anesthesia Providers S.C (Saint Louis, MO), G & G Anesthesia LLC (Maryville, IL), Millennium Anesthesiology Consultants, LLC (Maryville, IL), North American Partners In Anesthesia (illinois), LLC (Springfield, IL) and 1 more organization, 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 Jeffrey Alexander's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jeffrey Alexander accept?
Health plans from Oscar Health and Oscar Insurance Company list Jeffrey Alexander 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 Jeffrey Alexander affiliated with any hospitals?
According to CMS data, Jeffrey Alexander is affiliated with Alton Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Jeffrey Alexander was last updated on August 9, 2023. 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.
# Dr. Jeffrey Alexander, D.O. · NPI 1669539987
Anesthesiology physician in Ballwin, Missouri. Individual provider, active in the CMS NPPES registry since January 3, 2007.
## Identity
- **NPI:** 1669539987 (Entity type: Individual)
- **Enumerated:** January 3, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 2000157476 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 351 CONSORT DR, Ballwin, MO 63011-4439
- **Phone:** (636) 200-4242 · **Fax:** (636) 200-4243
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Specialists In Anesthesia PC (NPI 1689619280, St Louis, MO); Midwest Anesthesia Providers S.C (NPI 1295189082, Saint Louis, MO); G & G Anesthesia LLC (NPI 1487020111, Maryville, IL); Millennium Anesthesiology Consultants, LLC (NPI 1710218094, Maryville, IL); North American Partners In Anesthesia (illinois), LLC (NPI 1699032524, Springfield, IL); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** At Still University Of Health Sciences, College Of Osteo Med, Kirksville, class of 1996
## Record status
- **NPPES last updated:** August 9, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1669539987) · Data from the CMS NPPES public registry.