Quick answers
- Does Morton R. Rinder accept Medicare assignment?
- Yes. Medicare's clinician data says Morton R. Rinder 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 Morton R. Rinder see?
- In 2024, CMS data shows 1,438 Original Medicare patients and 3,697 services for Morton R. Rinder. This counts Original Medicare only and measures volume, not quality.
- What is Morton R. Rinder's NPI number?
- 1881799336. 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 Morton R. Rinder, 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 | 1,438 |
|---|---|
| Services billed to Medicare | 3,697 |
| Different services or procedures | 59 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,130 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)547 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)241 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)236 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)192 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%
- Ischemic heart disease57%
- Arthritis52%
- Atrial fibrillation41%
- Heart failure31%
Hospitals where Morton R. Rinder works
Medicare's Facility Affiliation Data lists Morton R. Rinder 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
- 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
- St Lukes HospitalChesterfield, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260179
Practice locations
Addresses where Morton R. Rinder is enrolled with Medicare (CMS data updated October 2, 2026).
- 222 S Woods Mill Rd, Suite 560Chesterfield, MO 63017 (314) 485‑8788
Group practices
Medicare enrollment lists Morton R. Rinder as a member of this group (CMS data updated October 2, 2026).
- Chesterfield Cardiology Care, LLC4 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Missouri →
Other cardiologists in Chesterfield
Clinicians with the same Medicare primary specialty in Chesterfield, MO — not a recommendation.
Other clinicians in Chesterfield Cardiology Care, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Maryland School Of Medicine |
| Graduation year | 1992 (34 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881799336 |
| 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