THOMAS MURRAY SILER MD
NPI 1881633931
Internal Medicine - Pulmonary Disease in Saint Charles, MO
About Thomas Murray Siler Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS MURRAY SILER MD (NPI 1881633931) is an individual pulmonary disease provider in Saint Charles, Missouri, licensed in Missouri (R6D67) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Ssm St Joseph Health Center, and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (1981).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 3
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
Thomas Murray Siler 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
2Medicare enrollment records show Thomas Siler reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Charles, MO 63301
- Reassigned Medicare billing, Missouri enrollment
- 741 clinicians in this Medicare group
St Charles, MO 63301
- Reassigned Medicare billing, Missouri enrollment
- 3 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 16
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.
Ssm St Joseph Health Center
Acute Care Hospitals · Saint Charles, MOBarnes-Jewish St Peters Hospital
Acute Care Hospitals · Saint Peters, MOSsm St Joseph Hospital West
Acute Care Hospitals · Lake Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63301 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 18
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 CHARLES, MO 63301
SAINT CHARLES, MO 63301
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 Thomas Siler's NPI number?
The NPI number for Thomas Siler is 1881633931. It was assigned to this individual provider in the NPPES registry on June 5, 2006.
Where is Thomas Siler located?
Thomas Siler practices at 300 1st Capitol Dr, Saint Charles, MO 63301. The listed phone number is (636) 947-5000.
What is Thomas Siler's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Thomas Siler enrolled in Medicare?
Yes. Thomas Siler 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 Thomas Siler's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Siler reassigns Medicare benefits to 2 organizations: Ssm Health Care St. Louis (Saint Charles, MO) and Midwest Chest Consultants PC (St Charles, MO). 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 Thomas Siler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Siler accept?
Health plans from Anthem Blue Cross and Blue Shield and Medica list Thomas Siler 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 Thomas Siler affiliated with any hospitals?
According to CMS data, Thomas Siler is affiliated with Ssm St Joseph Health Center, Barnes-Jewish St Peters Hospital and Ssm St Joseph Hospital West.
When was this NPI record last updated?
The NPPES record for Thomas Siler was last updated on May 18, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.