TLDRHumana reports 95% of Medicare Advantage members enrolled in four-star or higher plans for 2027.Humana stock climbs approximately 15% in premarket trading following improved Medicare Advantage Star Ratings.Six Medicare Advantage contracts receive 4.5 stars, while 12 contracts earn four-star ratings for 2027.Humana reports 534,000 additional preventive visits and improved screening numbers across several major health conditions.Medicare annual enrollment begins October 15, with newly selected coverage taking effect on January 1, 2027.Humana Inc. (NYSE: HUM) reported better 2027 Medicare Advantage Star Ratings on Friday. The announcement drew attention to Humana stock as investors reviewed the improved scores.Humana Inc., HUMThe company said 95% of its Medicare Advantage members belong to plans rated at least four stars. 4.5-star plans cover 42% of Humana members.Humana Stock Rises Following Ratings UpdateHumana stock rose about 15% in Friday’s premarket session, Reuters reported. Federal ratings determine which plans qualify for quality-based bonus payments.The share of members in four-star or better plans rose to 20% for 2026. JPMorgan analysts had expected between 60% and 70%. Lower scores previously limited Humana’s eligibility for certain government payments tied to quality.Separately, European healthcare stocks rose October 6 after clinical trial news. That market move involved different companies and had no connection to Humana’s ratings.More Medicare Contracts Earn Higher ScoresHumana counted six Medicare Advantage contracts with 4.5 stars and 12 with four stars for 2027. The total exceeded last year by 11 contracts.The insurer’s prescription drug contract also earned 4.5 stars. Medicare officials grade plans annually on care quality, customer service, and members’ experiences.Separately, HeartBeam received FDA breakthrough device status for home heart attack detection. The designation does not constitute final approval or involve insurance ratings.Preventive Care Measures Show GainsHumana reported 663,000 more completed care opportunities than a year earlier. Another 534,000 members attended annual preventive visits after its outreach efforts.Its outreach helped 28,000 people complete overdue mammograms. Those screenings identified 600 previously undetected breast cancers, Humana said.Another 93,000 members completed overdue colorectal screenings, detecting 100 cancers or precancerous cases. Among people with diabetes, 73,000 received overdue eye exams, identifying 17,000 previously undetected diagnoses of related eye disease.Enrollment Opens for 2027 PlansMedicare Advantage and prescription drug plan enrollment runs from October 15 through December 7, 2026. Eligible people can compare ratings before choosing coverage. CMS reported 71% of Medicare Advantage drug plan enrollees would have contracts rated four stars or higher.Separately, Haemonetics stock gained October 8 following plans for equipment rollout across U.S. plasma centers. The company makes medical devices, not Medicare plans.Coverage selected during annual enrollment starts January 1, 2027. Humana’s new scores will appear alongside other information for people comparing available plans.The post Humana (HUM) Stock Surges as Medicare Ratings Stage Comeback appeared first on Blockonomi.