EN, página actualES
Subscribe, it's free
Company Tracker sample

See which star measures moved for each insurer.

CMS rates each Medicare Advantage contract on 43 measures for 2027. We keep every measure star for all 735 rated contracts and set it next to 2026, where CMS rated the same measure (40 of 43 match by name).

Source: CMS 2027 Star Ratings Data Tables (October 8, 2026), Measure Stars and Measure Data files; CMS 2026 Star Ratings Data Tables; members from CMS CPSC enrollment, October 2026, a floor because CMS hides counts of 10 or fewer. Built 2026-10-24 10:14 CT.

Across all contracts, weighted by members

Biggest drops, 2026 to 2027

  • Diabetes Care - Eye Exam-0.40
  • Follow-up after Emergency Department Visit for People with Multiple High-Risk Chronic Conditions-0.37
  • Drug Plan Quality Improvement-0.35
  • Rating of Health Plan-0.33
  • Improving or Maintaining Physical Health-0.31

Biggest gains, 2026 to 2027

  • Plan All-Cause Readmissions+0.74
  • Reviewing Appeals Decisions+0.43
  • Osteoporosis Management in Women who had a Fracture+0.32
  • Medication Adherence for Hypertension (RAS antagonists)+0.29
  • Transitions of Care+0.23

Change is the member weighted average star in 2027 minus the same in 2026, using October 2026 members for both years.

By insurer, largest three contracts

  1. UnitedHealth Group, Inc.60 rated contracts, 9,218,282 members

    H2001 SIERRA HEALTH AND LIFE INSURANCE COMPANY, INC.2,191,858 members. 43 measures rated. 7 up and 7 down from 2026.

    Down: Colorectal Cancer Screening (5 to 4); Improving or Maintaining Mental Health (4 to 3); Monitoring Physical Activity (4 to 3)

    All measures for H2001, JSON

    H5253 UNITEDHEALTHCARE OF WISCONSIN, INC.1,156,585 members. 43 measures rated. 6 up and 13 down from 2026.

    Down: Breast Cancer Screening (4 to 3); Care for Older Adults - Medication Review (5 to 4); Diabetes Care - Eye Exam (4 to 3)

    All measures for H5253, JSON

    H0609 UnitedHealthcare Benefits of Texas, Inc.751,682 members. 42 measures rated. 4 up and 10 down from 2026.

    Down: Rating of Health Plan (4 to 2); Health Plan Quality Improvement (4 to 2); Improving or Maintaining Mental Health (3 to 2)

    All measures for H0609, JSON

  2. Humana Inc.36 rated contracts, 7,109,134 members

    H5216 HUMANA INSURANCE COMPANY2,322,888 members. 43 measures rated. 13 up and 5 down from 2026.

    Down: Annual Flu Vaccine (4 to 2); Improving Bladder Control (3 to 2); Getting Needed Care (4 to 3)

    All measures for H5216, JSON

    H7617 EMPHESYS INSURANCE COMPANY1,205,863 members. 38 measures rated. 7 up and 3 down from 2026.

    Down: Complaints about the Health Plan (5 to 2); Complaints about the Drug Plan (5 to 2); Improving or Maintaining Physical Health (4 to 2)

    All measures for H7617, JSON

    H1036 HUMANA MEDICAL PLAN, INC.856,312 members. 41 measures rated. 9 up and 5 down from 2026.

    Down: Diabetes Care - Eye Exam (5 to 4); Customer Service (4 to 3); Rating of Health Plan (5 to 4)

    All measures for H1036, JSON

  3. CVS Health Corporation42 rated contracts, 4,119,608 members

    H5522 AETNA LIFE INSURANCE COMPANY1,423,338 members. 40 measures rated. 9 up and 9 down from 2026.

    Down: Improving or Maintaining Physical Health (3 to 2); Improving or Maintaining Mental Health (4 to 3); Diabetes Care - Blood Sugar Controlled (5 to 4)

    All measures for H5522, JSON

    H5521 AETNA LIFE INSURANCE COMPANY1,030,810 members. 43 measures rated. 8 up and 18 down from 2026.

    Down: Drug Plan Quality Improvement (5 to 2); Follow-up after Emergency Department Visit for People with Multiple High-Risk Chronic Conditions (4 to 2); Rating of Health Plan (4 to 2)

    All measures for H5521, JSON

    H3959 AETNA HEALTH INC. (PA)204,955 members. 43 measures rated. 4 up and 14 down from 2026.

    Down: Annual Flu Vaccine (4 to 3); Improving or Maintaining Mental Health (5 to 4); Monitoring Physical Activity (2 to 1)

    All measures for H3959, JSON

  4. Elevance Health, Inc.39 rated contracts, 1,862,469 members

    H4036 ANTHEM INSURANCE COMPANIES, INC.359,300 members. 40 measures rated. 9 up and 6 down from 2026.

    Down: Colorectal Cancer Screening (5 to 4); Improving or Maintaining Mental Health (4 to 3); Monitoring Physical Activity (4 to 3)

    All measures for H4036, JSON

    H3447 HEALTHKEEPERS, INC.154,504 members. 43 measures rated. 7 up and 18 down from 2026.

    Down: Health Plan Quality Improvement (4 to 1); Getting Needed Care (4 to 2); Rating of Health Care Quality (3 to 1)

    All measures for H3447, JSON

    H3655 COMMUNITY INSURANCE COMPANY142,952 members. 40 measures rated. 8 up and 14 down from 2026.

    Down: Health Plan Quality Improvement (5 to 1); Improving or Maintaining Physical Health (4 to 2); Rating of Health Care Quality (5 to 3)

    All measures for H3655, JSON

  5. Centene Corporation52 rated contracts, 836,284 members

    H5599 NEW YORK QUALITY HEALTHCARE CORPORATION68,353 members. 38 measures rated. 12 up and 5 down from 2026.

    Down: Monitoring Physical Activity (4 to 3); Members Choosing to Leave the Plan (4 to 3); Rating of Drug Plan (3 to 2)

    All measures for H5599, JSON

    H2775 AMERICAN PROGRESSIVE LIFE & HLTH INS COMPANY OF NY57,692 members. 40 measures rated. 13 up and 9 down from 2026.

    Down: Drug Plan Quality Improvement (5 to 2); Special Needs Plan (SNP) Care Management (4 to 3); Kidney Health Evaluation for Patients with Diabetes (3 to 2)

    All measures for H2775, JSON

    H1416 HARMONY HEALTH PLAN, INC.53,116 members. 38 measures rated. 11 up and 8 down from 2026.

    Down: Drug Plan Quality Improvement (5 to 2); Monitoring Physical Activity (3 to 1); Annual Flu Vaccine (3 to 2)

    All measures for H1416, JSON

  6. Molina Healthcare, Inc.15 rated contracts, 137,411 members

    H3038 MOLINA HEALTHCARE OF CALIFORNIA29,055 members. 36 measures rated. 6 up and 5 down from 2026.

    Down: Medication Adherence for Diabetes Medications (4 to 2); Customer Service (3 to 2); Call Center - Foreign Language Interpreter and TTY Availability (5 to 4)

    All measures for H3038, JSON

    H5628 MOLINA HEALTHCARE OF UTAH, INC.16,382 members. 39 measures rated. 10 up and 11 down from 2026.

    Down: Breast Cancer Screening (2 to 1); Colorectal Cancer Screening (3 to 2); Annual Flu Vaccine (2 to 1)

    All measures for H5628, JSON

    H5926 MOLINA HEALTHCARE OF MICHIGAN, INC.15,210 members. 40 measures rated. 11 up and 9 down from 2026.

    Down: Drug Plan Quality Improvement (4 to 2); Monitoring Physical Activity (3 to 2); Complaints about the Health Plan (4 to 3)

    All measures for H5926, JSON

  7. Alignment Healthcare USA, LLC8 rated contracts, 299,874 members

    H3815 ALIGNMENT HEALTH PLAN224,988 members. 40 measures rated. 5 up and 14 down from 2026.

    Down: Improving or Maintaining Physical Health (5 to 1); Improving Bladder Control (5 to 3); Medication Adherence for Hypertension (RAS antagonists) (5 to 3)

    All measures for H3815, JSON

    H5296 ALIGNMENT HEALTH PLAN OF NORTH CAROLINA, INC.33,145 members. 39 measures rated. 3 up and 17 down from 2026.

    Down: Improving Bladder Control (5 to 3); Drug Plan Quality Improvement (3 to 1); Breast Cancer Screening (5 to 4)

    All measures for H5296, JSON

    H5472 ALIGNMENT HEALTH INSURANCE COMPANY OF ARIZONA INC10,754 members. 35 measures rated. 4 up and 5 down from 2026.

    Down: Medication Adherence for Diabetes Medications (5 to 3); Special Needs Plan (SNP) Care Management (5 to 4); Follow-up after Emergency Department Visit for People with Multiple High-Risk Chronic Conditions (5 to 4)

    All measures for H5472, JSON

  8. Clover Health Holdings, Inc.2 rated contracts, 157,445 members

    H5141 CLOVER INSURANCE COMPANY153,610 members. 37 measures rated. 13 up and 5 down from 2026.

    Down: Improving or Maintaining Mental Health (3 to 1); Breast Cancer Screening (5 to 4); Rating of Health Plan (4 to 3)

    All measures for H5141, JSON

    H8010 CLOVER HMO OF NEW JERSEY INC.3,835 members. 35 measures rated. 12 up and 5 down from 2026.

    Down: Breast Cancer Screening (5 to 4); Controlling High Blood Pressure (5 to 4); Follow-up after Emergency Department Visit for People with Multiple High-Risk Chronic Conditions (5 to 4)

    All measures for H8010, JSON

  9. Health Care Service Corporation21 rated contracts, 854,583 members

    H4513 HEALTHSPRING LIFE & HEALTH INSURANCE COMPANY, INC.385,579 members. 41 measures rated. 1 up and 21 down from 2026.

    Down: Improving or Maintaining Mental Health (5 to 3); Reducing the Risk of Falling (4 to 2); Rating of Health Plan (5 to 3)

    All measures for H4513, JSON

    H0107 HEALTH CARE SERVICE CORPORATION93,727 members. 40 measures rated. 14 up and 4 down from 2026.

    Down: Monitoring Physical Activity (4 to 3); Follow-up after Emergency Department Visit for People with Multiple High-Risk Chronic Conditions (3 to 2); Care Coordination (4 to 3)

    All measures for H0107, JSON

    H0354 BRAVO HEALTH PENNSYLVANIA, INC.75,157 members. 42 measures rated. 8 up and 15 down from 2026.

    Down: Plan Makes Timely Decisions about Appeals (5 to 2); Annual Flu Vaccine (4 to 3); Improving or Maintaining Physical Health (5 to 4)

    All measures for H0354, JSON

Every plan in the county lookup opens the same measures for its contract. Company Tracker clients get this view for every contract their insurer runs.