Thomas Siler, MD
NPI 1881633931 · Pulmonary Disease Physician · Saint Charles, MO
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Siler, MD is a Pulmonary Disease Physician provider in Saint Charles, MO (NPI 1881633931).
Provider details
- NPI number
- 1881633931
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- R6D67 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,976 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 878 | $121 |
| Test to Measure Rate of Airflow94375 | 472 | $37 |
| Test to Measure the Level of Nitric Oxide Gas95012 | 130 | $18 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 89 | $173 |
| Administration of Influenza Virus VaccineG0008 | 75 | $29 |
| Evaluation of Use of Breathing Device94664 | 56 | $17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 118 | 52 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 98 | 24 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 90 | 24 |
| Prednisone | 71 | 39 |
| Zolpidem Tartrate | 70 | 20 |
| Clonazepam | 46 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,275 across 74 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-05
- Last updated
- 2011-05-18
Frequently asked questions
- What is Thomas Siler's NPI number?
- Thomas Siler's National Provider Identifier (NPI) is 1881633931, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Siler's specialty?
- Thomas Siler is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Siler located?
- Thomas Siler's practice location on file with NPPES is 300 1st Capitol Dr, Saint Charles, MO 63301-2844.
- What is Thomas Siler's phone number?
- The practice phone number listed in the NPPES registry for Thomas Siler is (636) 947-5000.
- Does Thomas Siler accept Medicare?
- Thomas Siler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Siler's NPI active?
- Yes — Thomas Siler's NPI (1881633931) is active in the NPPES registry as of the last update on 2011-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.