Matthew Treaster, M.D.
NPI 1447456215 · Emergency Medicine Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Treaster, M.D. is a Emergency Medicine Physician provider in Saint Louis, MO (NPI 1447456215).
Provider details
- NPI number
- 1447456215
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2009036610 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
906 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 504 | $173 |
| Critical Care, First 30-74 Minutes99291 | 167 | $209 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 136 | $119 |
| Electrocardiogram (ecg) 1 to 3 Leads With Review By Physician Only93042 | 70 | $7 |
| Emergent Insertion of Breathing Tube Into Windpipe Using an Endoscope31500 | 18 | $140 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 11 | $72 |
Typical Medicare-allowed amounts for these services range $7–$209 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 31 | 29 |
| Ondansetronbrand: Ondansetron Odt | 24 | 24 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 21 | 21 |
| Cefdinir | 17 | 17 |
| Azithromycin | 15 | 14 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 15 | 14 |
| Cephalexin | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-06-26
- Last updated
- 2010-07-06
Frequently asked questions
- What is Matthew Treaster's NPI number?
- Matthew Treaster's National Provider Identifier (NPI) is 1447456215, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Treaster's specialty?
- Matthew Treaster is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Treaster located?
- Matthew Treaster's practice location on file with NPPES is 660 S Euclid Ave, Saint Louis, MO 63110-1010.
- What is Matthew Treaster's phone number?
- The practice phone number listed in the NPPES registry for Matthew Treaster is (314) 362-9177.
- Does Matthew Treaster accept Medicare?
- Matthew Treaster is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Treaster's NPI active?
- Yes — Matthew Treaster's NPI (1447456215) is active in the NPPES registry as of the last update on 2010-07-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.