Quick answers
- Does Mary C. Lowdermilk accept Medicare assignment?
- Yes. Medicare's clinician data says Mary C. Lowdermilk 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 Mary C. Lowdermilk see?
- In 2024, CMS data shows 659 Original Medicare patients and 1,400 services for Mary C. Lowdermilk. This counts Original Medicare only and measures volume, not quality.
- What is Mary C. Lowdermilk's NPI number?
- 1518932888. 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 Mary C. Lowdermilk, 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 | 659 |
|---|---|
| Services billed to Medicare | 1,400 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Screening mammography (77067)534 services
- Screening 3d breast mammography (77063)533 services
- Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)108 services
- Diagnostic mammography of 1 breast (77065)70 services
- Limited ultrasound scan of 1 breast (76642)52 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 cholesterol75%
- High blood pressure68%
- Arthritis47%
- Diabetes25%
- Depression24%
- Anxiety23%
Hospitals where Mary C. Lowdermilk works
Medicare's Facility Affiliation Data lists Mary C. Lowdermilk 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
- SSM Health Depaul Hospital St LouisBridgeton, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260104
- SSM Health St Mary's Hospital - St LouisSaint Louis, MO · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 260091
- SSM St Clare Health CenterFenton, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260081
- St Lukes HospitalChesterfield, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260179
Practice locations
Addresses where Mary C. Lowdermilk is enrolled with Medicare (CMS data updated October 2, 2026).
- 1015 Bowles AveFenton, MO 63026 (636) 496‑2000
- 12303 Depaul Dr, SSM Health Depaul Hospital Physician BillinBridgeton, MO 63044 (314) 344‑6000
Group practices
Medicare enrollment lists Mary C. Lowdermilk as a member of this group (CMS data updated October 2, 2026).
- SSM Health Care St Louis167 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Fenton
Clinicians with the same Medicare primary specialty in Fenton, MO — not a recommendation.
Other clinicians in SSM Health Care St Louis
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Saint Louis University School Of Medicine |
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518932888 |
| 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