DR. BRETT WILLIAM JAGGER MD
NPI 1730528035
Internal Medicine - Infectious Disease in Saint Louis, MO
About Dr. Brett William Jagger Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BRETT WILLIAM JAGGER MD (NPI 1730528035) is an individual infectious disease provider in Saint Louis, Missouri, licensed in Missouri (2023000978) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS, is affiliated with Ssm Health St Mary's Hospital -centralia, and is a graduate of Indiana University School Of Medicine (2013).
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. Brett William Jagger 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
3Medicare enrollment records show Brett Jagger reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63104
- Reassigned Medicare billing, Missouri enrollment
- 1,294 clinicians in this Medicare group
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 1,133 clinicians in this Medicare group
Mount Vernon, IL 62864
- Reassigned Medicare billing, Illinois enrollment
- 296 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 3
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ssm Health St Mary's Hospital -Centralia
Acute Care Hospitals · Centralia, ILGood Samaritan Regional Hlth Center
Acute Care Hospitals · Mount Vernon, ILSsm Health St Mary's Hospital Jefferson City
Acute Care Hospitals · Jefferson City, 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 63104 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.
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 63104
SAINT LOUIS, MO 63104
SAINT LOUIS, MO 63104
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 Brett Jagger's NPI number?
The NPI number for Brett Jagger is 1730528035. It was assigned to this individual provider in the NPPES registry on June 19, 2013.
Where is Brett Jagger located?
Brett Jagger practices at 1225 S Grand Blvd, Saint Louis, MO 63104. The listed phone number is (314) 977-9050.
What is Brett Jagger's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Brett Jagger enrolled in Medicare?
Yes. Brett Jagger 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 Brett Jagger's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brett Jagger reassigns Medicare benefits to 3 organizations: Ssm Health Care Group (Saint Louis, MO), Washington University (Saint Louis, MO) and Physician Services Corporation Of Southern Illinois Inc. (Mount Vernon, IL). 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 Brett Jagger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Brett Jagger accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 4 other insurers list Brett Jagger 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 Brett Jagger affiliated with any hospitals?
According to CMS data, Brett Jagger is affiliated with Ssm Health St Mary's Hospital -Centralia, Good Samaritan Regional Hlth Center, Ssm Health St Mary's Hospital Jefferson City and Ssm Health Saint Louis University Hospital.
When was this NPI record last updated?
The NPPES record for Brett Jagger was last updated on December 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Dr. Brett William Jagger, MD · NPI 1730528035
Infectious Disease physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 19, 2013.
## Identity
- **NPI:** 1730528035 (Entity type: Individual)
- **Enumerated:** June 19, 2013
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** 2023000978 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1225 S GRAND BLVD, Saint Louis, MO 63104-1016
- **Phone:** (314) 977-9050
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Ssm Health Care Group (NPI 1306589544, Saint Louis, MO); Washington University (NPI 1992746903, Saint Louis, MO); Physician Services Corporation Of Southern Illinois Inc. (NPI 1831101807, Mount Vernon, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Indiana University School Of Medicine, class of 2013
## Record status
- **NPPES last updated:** December 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1730528035) · Data from the CMS NPPES public registry.