Quick answers
- Does Stephanie M. Dalla Riva accept Medicare assignment?
- Yes. Medicare's clinician data says Stephanie M. Dalla Riva 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 Stephanie M. Dalla Riva see?
- In 2024, CMS data shows 24 Original Medicare patients and 38 services for Stephanie M. Dalla Riva. This counts Original Medicare only and measures volume, not quality.
- What is Stephanie M. Dalla Riva's NPI number?
- 1801388665. 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 Stephanie M. Dalla Riva, 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 | 24 |
|---|---|
| Services billed to Medicare | 38 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 59 |
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 pressure67%
- Arthritis46%
Hospitals where Stephanie M. Dalla Riva works
Medicare's Facility Affiliation Data lists Stephanie M. Dalla Riva 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.
- Memorial Medical CenterSpringfield, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140148
- St Johns HospitalSpringfield, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140053
Practice locations
Addresses where Stephanie M. Dalla Riva is enrolled with Medicare (CMS data updated October 2, 2026).
- 400 N 9th StSpringfield, IL 62702 (217) 545‑8000
Group practices
Medicare enrollment lists Stephanie M. Dalla Riva as a member of this group (CMS data updated October 2, 2026).
- SIU Physicians and Surgeons Inc314 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Springfield
Clinicians with the same Medicare primary specialty in Springfield, IL — not a recommendation.
Other clinicians in SIU Physicians and Surgeons Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Southern Illinois University School Of Medicine |
| Graduation year | 2018 (8 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801388665 |
| 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