Quick answers
- Does David A. Leitman Ii accept Medicare assignment?
- Yes. Medicare's clinician data says David A. Leitman Ii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does David A. Leitman Ii see?
- In 2024, CMS data shows 1,987 Original Medicare patients and 3,303 services for David A. Leitman Ii. This counts Original Medicare only and measures volume, not quality.
- What is David A. Leitman Ii's NPI number?
- 1427378298. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for David A. Leitman Ii, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,987 |
|---|---|
| Services billed to Medicare | 3,303 |
| Different services or procedures | 138 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- X-ray of chest, 1 view (71045)756 services
- Ct scan of abdomen and pelvis with contrast (74177)230 services
- Ct scan of chest without contrast (71250)200 services
- X-ray of chest, 2 views (71046)180 services
- Ct scan head or brain without contrast (70450)178 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Diabetes43%
- Chronic kidney disease43%
- Ischemic heart disease41%
Hospitals where David A. Leitman Ii works
Medicare's Facility Affiliation Data lists David A. Leitman Ii at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Barnes Jewish HospitalSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260032
- Barnes-Jewish St Peters HospitalSaint Peters, MO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 260191
- Christian Hospital NortheastSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260180
- Missouri Baptist Medical CenterSaint Louis, MO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 260108
- Progress West HospitalOfallon, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260219
Practice locations
Addresses where David A. Leitman Ii is enrolled with Medicare (CMS data updated October 2, 2026).
- 1785 Clarkson RdChesterfield, MO 63017 (636) 681‑1540
- 510 S Kingshighway BlvdSaint Louis, MO 63110
Group practices
Medicare enrollment lists David A. Leitman Ii as a member of these groups (CMS data updated October 2, 2026).
- Washington University3,029 clinicians in the group
- BJC Outpatient Imaging LLC25 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Chesterfield
Clinicians with the same Medicare primary specialty in Chesterfield, MO — not a recommendation.
Other clinicians in Washington University
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427378298 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians