St Mary'S Regional Medical Center
Lewiston, ME · Androscoggin County · Acute Care Hospitals · CMS 4 stars · April 2026
What is St Mary'S Regional Medical Center's hospital quality rating?
As of April 2026, St Mary'S Regional Medical Center in Lewiston, ME holds a CMS Overall Star Rating of 4 stars — the official rating published by the Centers for Medicare & Medicaid Services. Its Gera US Hospital Quality Index (GUHQI) is 86.4/100, in the "High performing" tier, derived from real CMS mortality, readmission, and HCAHPS data.
| CMS measure | Value | Context |
|---|---|---|
| Overall Star Rating | 4 stars (of 5) | CMS official composite quality rating |
| Gera US Hospital Quality Index | 86.4 / 100 | High performing tier — see methodology |
| Hospital type | Acute Care Hospitals | |
| Ownership | Voluntary non-profit - Church | |
| Emergency services | Yes | |
| Mortality measures better than national | 0 | Statistically better than US average rate |
| Mortality measures worse than national | 0 | Statistically worse than US average rate |
| Readmission measures better than national | 2 | Statistically better than US average rate |
| Readmission measures worse than national | 0 | Statistically worse than US average rate |
| HCAHPS patient-experience measures | 15 | Number of measures reported (max 15) |
CMS Facility ID (CCN): 200034. View the full profile on CMS Hospital Care Compare. Ratings can be several months old — always check the latest detail before making any healthcare decision.
Rank the top hospitals in any US state
Pick a state to see its highest-GUHQI hospitals, their real CMS star ratings, and links to their individual quality profiles.
Top hospital in Maine by GUHQI
Northern Light Eastern Maine Medical Center
5 readmission measures better than national rate.
View Northern Light Eastern Maine Medical Center quality profile →Top 5 hospitals in Maine by Gera US Hospital Quality Index (April 2026)
- 1.97.5/1005 stars
- 2.Central Maine Medical CenterLewiston, ME86.4/1004 stars
- 3.Maine General Medical CenterAugusta, ME86.4/1004 stars
- 4.Mainehealth Stephens HospitalNorway, ME86.4/1004 stars
- 5.St Mary'S Regional Medical CenterLewiston, ME86.4/1004 stars
Rankings use the Gera US Hospital Quality Index (GUHQI), a transparent 0–100 score derived from CMS Overall Star Ratings, mortality outcomes, readmission outcomes, and HCAHPS coverage. See the full formula. Only hospitals with an official CMS star rating (4 or 5 stars) are listed. Check the latest data on CMS Hospital Care Compare before making any healthcare decision.
Other top-rated hospitals in Maine
- Northern Light Eastern Maine Medical Center(Bangor)GUHQI 97.5 · 5 stars
- Central Maine Medical Center(Lewiston)GUHQI 86.4 · 4 stars
- Maine General Medical Center(Augusta)GUHQI 86.4 · 4 stars
- Mainehealth Stephens Hospital(Norway)GUHQI 86.4 · 4 stars
Frequently asked questions
- What is St Mary'S Regional Medical Center's CMS star rating?
- As of April 2026, St Mary'S Regional Medical Center in Lewiston, ME holds a CMS Overall Star Rating of 4 stars — the official quality rating published by the Centers for Medicare & Medicaid Services (CMS) on Hospital Care Compare.
- What is the Gera US Hospital Quality Index score for St Mary'S Regional Medical Center?
- The Gera US Hospital Quality Index (GUHQI) for St Mary'S Regional Medical Center is 86.4/100, placing it in the "High performing" tier. The GUHQI is a transparent composite of CMS star rating, mortality outcomes, readmission outcomes, and HCAHPS patient-experience coverage.
- How does St Mary'S Regional Medical Center perform on mortality and readmission?
- St Mary'S Regional Medical Center has 0 mortality measures statistically better than the national rate and 0 worse, plus 2 readmission measures better and 0 worse, per CMS Hospital Care Compare (April 2026).
- Is St Mary'S Regional Medical Center a good hospital?
- St Mary'S Regional Medical Center holds a CMS 4 stars — one of the highest ratings awarded by the U.S. government's official hospital comparison tool. Its Gera US Hospital Quality Index of 86.4/100 (High performing) reflects strong performance on multiple CMS quality measures. Always consult CMS Hospital Care Compare and your own clinician before making any healthcare decision.
- What does the CMS star rating measure?
- The CMS Overall Star Rating is a 1–5 summary of hospital quality across five groups of measures: mortality, safety of care, readmission, patient experience (HCAHPS), and timely & effective care. CMS computes it via a latent-variable methodology, weighting mortality and readmission most heavily.
- When was this data last updated?
- This page reflects CMS Hospital Care Compare data as of April 2026. CMS updates the dataset periodically. Gera re-dates these pages whenever a new CMS release is available. The current GUHQI computation used the CMS API snapshot downloaded on 19 June 2026.
Preparing for care at St Mary'S Regional Medical Center?
St Mary'S Regional Medical Center holds a CMS 4 stars and a Gera US Hospital Quality Index of 86.4/100 (High performing). A GeraClinic care navigator can help you interpret this data, prepare questions for your provider, and navigate your next step — with a clinician available online.
Contains public sector information published by Centers for Medicare & Medicaid Services and licensed under the U.S. Public Domain (federal government work). Source: Centers for Medicare & Medicaid Services — Hospital Care Compare (Hospital General Information) (April 2026, published 28 April 2026).
Informational/educational only — not a substitute for professional medical advice; a clinician interprets results.