Michael Walter, MD
NPI 1629096359 · Critical Care Medicine (Internal Medicine) Physician · Maryville, IL
Enrolled with Medicare as Practitioner - Critical Care (intensivists) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Walter, MD is a Critical Care Medicine (Internal Medicine) Physician provider in Maryville, IL (NPI 1629096359).
Provider details
- NPI number
- 1629096359
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 103849 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
730 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 166 | $78 |
| Test to Determine Lung Volumes Using Sensors94726 | 113 | $11 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 111 | $8 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 110 | $175 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration94060 | 95 | $10 |
| Test for Exercise-Induced Lung Stress94618 | 54 | $21 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 76 | 30 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 65 | 14 |
| Umeclidinium Brm/Vilanterol Trbrand: Anoro Ellipta | 60 | 13 |
| Tiotropium Br/Olodaterol Hclbrand: Stiolto Respimat | 52 | 13 |
| Budesonide/Glycopyr/Formoterolbrand: Breztri Aerosphere | 50 | 14 |
| Prednisone | 38 | 16 |
Practice location
Mailing address
Additional practice locations (1)
- 12303 Depaul DrBridgeton, MO 63044Phone: (314) 344-6000Fax: (314) 514-6020
Registry dates
- Enumerated
- 2006-07-18
- Last updated
- 2024-08-28
- Certified
- 2024-08-28
Frequently asked questions
- What is Michael Walter's NPI number?
- Michael Walter's National Provider Identifier (NPI) is 1629096359, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Walter's specialty?
- Michael Walter is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Walter located?
- Michael Walter's practice location on file with NPPES is 6812 State Route 162 Ste 202, Maryville, IL 62062-8562.
- What is Michael Walter's phone number?
- The practice phone number listed in the NPPES registry for Michael Walter is (618) 288-6844.
- Does Michael Walter accept Medicare?
- Michael Walter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Walter's NPI active?
- Yes — Michael Walter's NPI (1629096359) is active in the NPPES registry as of the last update on 2024-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.