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ABBY NIETERS
NPI 1447944871
Anesthesiologist Assistant in Saint Louis, MO

Active since June 07, 2023Accepts Medicare Assignment
1201 S GRAND BLVD, SAINT LOUIS, MO 63104(314) 257-8000 Get Directions Write a Review

NPPES record last updated: June 7, 2023. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Abby Nieters NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ABBY NIETERS (NPI 1447944871) is an individual anesthesiologist assistant in Saint Louis, Missouri and active in the NPI registry since June 2023. She is affiliated with Ssm Health Saint Louis University Hospital and is a graduate of University Of Missouri, Kansas City, School Of Medicine (2023).

NPPES Registry Identity

NPI1447944871
Entity TypeIndividualFemale
Primary Taxonomy367H00000X
Provider Legal NameABBY NIETERS
Location Address1201 S GRAND BLVDSaint Louis, MO 63104-1016
Mailing Address542 Oaktree Crossing CtBallwin, MO 63021-7474 · (314) 779-4426
Phone(314) 257-8000
Sole ProprietorNo
Medical School CMSUniversity Of Missouri, Kansas City, School Of MedicineGraduated 2023
Enumeration DateJune 7, 2023
NPPES CertifiedJune 7, 2023
✔ NPI 1447944871 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologist AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367H00000X
Definition
An individual certified by the state to perform anesthesia services under the direct supervision of an anesthesiologist. Anesthesiologist Assistants are required to have a bachelor's degree with a premed curriculum prior to entering a two-year anesthesiology assistant program, which is focused upon the delivery and maintenance of anesthesia care as well as advanced patient monitoring techniques. An Anesthesiologist Assistant must work as a member of the anesthesia care team under the direction of a qualified Anesthesiologist.
1201 S GRAND BLVD, Saint Louis, MO 63104
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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

Abby Nieters 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.

PECOS PAC ID7113381872
PECOS Enrollment IDI20230913002810

Medicare Billing Reassignments

2

Medicare enrollment records show Abby Nieters reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ssm Health Slu Hospital Anesthesia Physician Billing, LLC
0.1 mi
Anesthesiology
3635 VISTA AVE
Saint Louis, MO 63110
  • Reassigned Medicare billing, Missouri enrollment
  • 142 clinicians in this Medicare group
NPI 1407232804 (314) 577-8000
Orthomed Staffing LLC
538 mi
Anesthesiology
15305 DALLAS PKWY STE 900
Addison, TX 75001
  • Reassigned Medicare billing, Missouri enrollment
  • 175 clinicians in this Medicare group
NPI 1225514276 (469) 863-9978

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

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ssm Health Saint Louis University Hospital

Acute Care Hospitals · Saint Louis, MO
1/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number260105
Location3635 Vista AveSaint Louis, MO 63110 · St. Louis City County
Emergency services

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.

DOUG LONGO APRN
Nurse Practitioner (Acute Care)
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
St. Louis City (314) 257-8000
JOHN JOSEPH HOUSER
Student in an Organized Health Care Education/Training Program
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
St. Louis City (314) 257-8000
NABIHA NOOR SHAMSHUDDIN MD
Hospitalist
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
St. Louis City (314) 257-8000
AMAN PATEL
Radiology (Diagnostic Radiology)
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
St. Louis City (314) 257-8000
MS. KEELEY FERRELL RYAN PA-C
Physician Assistant
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
St. Louis City (314) 257-1320
PATRICK SWEENEY
Student in an Organized Health Care Education/Training Program
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
St. Louis City (314) 257-8000
DR. SHAMEELA NASRULLAH KHIMANI MD
Pediatrics
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
St. Louis City (314) 617-3239
IBRAHIM SHAMASNEH M.D.
Hospitalist
1201 S GRAND BLVD
SAINT LOUIS, MO 63104
St. Louis City (314) 617-2000

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 Abby Nieters's NPI number?

The NPI number for Abby Nieters is 1447944871. It was assigned to this individual provider in the NPPES registry on June 7, 2023.

Where is Abby Nieters located?

Abby Nieters practices at 1201 S Grand Blvd, Saint Louis, MO 63104. The listed phone number is (314) 257-8000.

What is Abby Nieters's specialty?

The primary specialty registered for this NPI is Anesthesiologist Assistant with taxonomy code 367H00000X.

Is Abby Nieters enrolled in Medicare?

Yes. Abby Nieters 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 Abby Nieters's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Abby Nieters reassigns Medicare benefits to 2 organizations: Ssm Health Slu Hospital Anesthesia Physician Billing, LLC (Saint Louis, MO) and Orthomed Staffing LLC (Addison, TX). 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 Abby Nieters's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Abby Nieters accept?

Health plans from Anthem Blue Cross and Blue Shield list Abby Nieters 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 Abby Nieters affiliated with any hospitals?

According to CMS data, Abby Nieters is affiliated with Ssm Health Saint Louis University Hospital.

When was this NPI record last updated?

The NPPES record for Abby Nieters was last updated on June 7, 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.