Quick answers
- Does Timothy W. Jennings accept Medicare assignment?
- Yes. Medicare's clinician data says Timothy W. Jennings 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 Timothy W. Jennings see?
- In 2024, CMS data shows 211 Original Medicare patients and 413 services for Timothy W. Jennings. This counts Original Medicare only and measures volume, not quality.
- What is Timothy W. Jennings's NPI number?
- 1548233455. 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 Timothy W. Jennings, 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 | 211 |
|---|---|
| Services billed to Medicare | 413 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)252 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)89 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)17 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)13 services
- Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit (G0438)11 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 pressure70%
- High cholesterol58%
- Arthritis43%
- Diabetes29%
- Ischemic heart disease25%
- Chronic kidney disease22%
Hospitals where Timothy W. Jennings works
Medicare's Facility Affiliation Data lists Timothy W. Jennings 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.
- Mercy Hospital St LouisSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260020
- Missouri Baptist Medical CenterSaint Louis, MO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 260108
- SSM Health Depaul Hospital St LouisBridgeton, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260104
- SSM St Joseph Health CenterSaint Charles, MO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 260005
- SSM St Joseph Hospital WestLake Saint Louis, MO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 260200
Practice locations
Addresses where Timothy W. Jennings is enrolled with Medicare (CMS data updated October 2, 2026).
- 2024 Dorsett VlgMaryland Heights, MO 63043 (314) 590‑0550
Group practices
Medicare enrollment lists Timothy W. Jennings as a member of this group (CMS data updated October 2, 2026).
- SSM Medical Group Inc568 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Maryland Heights
Clinicians with the same Medicare primary specialty in Maryland Heights, MO — not a recommendation.
Other clinicians in SSM Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | At Still University Of Health Sciences, College Of Osteo Med, Kirksville |
| Graduation year | 1989 (37 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548233455 |
| 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