CareStars › All contracts › H0543
H0543 · UnitedHealthcare (UHC OF CALIFORNIA): 2027 Star Rating
H0543 (UnitedHealthcare, UHC OF CALIFORNIA) earned 3.0 stars in the 2027 Medicare Advantage Star Ratings, down from 4.0 in 2026. Parent company: UnitedHealth Group, Inc. Plan type: Local CCP · offers special needs plans.
2027 overall CMS
3.0
Part C 3.5 · Part D 3.0
2026 overall CMS
4.0
Part C 4.0 · Part D 4.5
Change Calc
-1.0
2027 vs 2026
Members Calc
243,320
CMS county files, October 2026
Open H0543 in CareStars: bonus at stake, measures to fix, local rivalsTalk to Carelytics about H0543
What stands out for H0543
- Most of its members are in California (243,320, 7.4% of Medicare Advantage members in CMS county files there). Calc
- Of the 35 rated contracts with members in California, 24 have a higher 2027 rating and 8 have the same rating. Calc
- Largest other contract in California: H0524 · Kaiser Permanente, 4.5 stars, 1,384,792 members. Calc
- At 3.0 stars it is below the 4-star line that sets 2028 quality bonus payments. CMS rule
- 6 of its 43 rated measures are at 5 stars; 10 are at 1 or 2 stars. Calc
- Its Part D rating (3.0) is lower than its Part C rating (3.5). CMS
Weakest high-weight measures
Measures with weight 2 or more and the lowest stars. These move the overall rating most.
- Drug Plan Quality Improvement (D04, weight ×5): 1 star
- Health Plan Quality Improvement (C29, weight ×5): 2 stars
- Improving or Maintaining Mental Health (C05, weight ×3): 2 stars, score 82
- Getting Needed Care (C21, weight ×2): 2 stars, score 77
- Rating of Health Care Quality (C24, weight ×2): 2 stars, score 85
All 2027 measure scores Sourced: CMS
| Measure | Weight | Score | Stars |
|---|---|---|---|
| Breast Cancer Screening (C01) | ×1 | 79 | 4 |
| Colorectal Cancer Screening (C02) | ×1 | 76 | 4 |
| Annual Flu Vaccine (C03) | ×1 | 71 | 4 |
| Improving or Maintaining Physical Health (C04) | ×3 | 72 | 3 |
| Improving or Maintaining Mental Health (C05) | ×3 | 82 | 2 |
| Monitoring Physical Activity (C06) | ×1 | 55 | 4 |
| Special Needs Plan (SNP) Care Management (C07) | ×1 | 80 | 4 |
| Care for Older Adults - Medication Review (C08) | ×1 | 99 | 5 |
| Care for Older Adults - Functional Status Assessment (C09) | ×1 | 97 | 5 |
| Osteoporosis Management in Women who had a Fracture (C10) | ×1 | 60 | 4 |
| Diabetes Care - Eye Exam (C11) | ×1 | 82 | 4 |
| Diabetes Care - Blood Sugar Controlled (C12) | ×3 | 92 | 5 |
| Kidney Health Evaluation for Patients with Diabetes (C13) | ×1 | 77 | 4 |
| Controlling High Blood Pressure (C14) | ×3 | 85 | 4 |
| Reducing the Risk of Falling (C15) | ×1 | 56 | 2 |
| Improving Bladder Control (C16) | ×1 | 45 | 3 |
| Plan All-Cause Readmissions (C17) | ×3 | 10 | 4 |
| Statin Therapy for Patients with Cardiovascular Disease (C18) | ×1 | 88 | 3 |
| Transitions of Care (C19) | ×1 | 55 | 2 |
| Follow-up after Emergency Department Visit for People with Multiple High-Risk Chronic Conditions (C20) | ×1 | 59 | 2 |
| Getting Needed Care (C21) | ×2 | 77 | 2 |
| Rating of Health Care Quality (C24) | ×2 | 85 | 2 |
| Rating of Health Plan (C25) | ×2 | 85 | 3 |
| Care Coordination (C26) | ×2 | 85 | 2 |
| Complaints about the Health Plan (C27) | ×2 | 0.31 | 4 |
| Members Choosing to Leave the Plan (C28) | ×2 | 15 | 4 |
| Health Plan Quality Improvement (C29) | ×5 | – | 2 |
| Plan Makes Timely Decisions about Appeals (C30) | ×2 | 99 | 4 |
| Reviewing Appeals Decisions (C31) | ×2 | 99 | 4 |
| Call Center - Foreign Language Interpreter and TTY Availability (C32) | ×2 | 100 | 5 |
| Call Center - Foreign Language Interpreter and TTY Availability (D01) | ×2 | 100 | 5 |
| Complaints about the Drug Plan (D02) | ×2 | 0.31 | 4 |
| Members Choosing to Leave the Plan (D03) | ×2 | 15 | 4 |
| Drug Plan Quality Improvement (D04) | ×5 | – | 1 |
| Rating of Drug Plan (D05) | ×2 | 86 | 3 |
| Getting Needed Prescription Drugs (D06) | ×2 | 88 | 2 |
| MPF Price Accuracy (D07) | ×1 | 100 | 5 |
| Medication Adherence for Diabetes Medications (D08) | ×3 | 89 | 3 |
| Medication Adherence for Hypertension (RAS antagonists) (D09) | ×3 | 90 | 4 |
| Medication Adherence for Cholesterol (Statins) (D10) | ×3 | 89 | 3 |
| Statin Use in Persons with Diabetes (SUPD) (D11) | ×1 | 90 | 4 |
| Concurrent Use of Opioids and Benzodiazepines (COB) (D12) | ×1 | 10 | 4 |
| Polypharmacy: Use of Multiple Anticholinergic Medications in Older Adults (Poly-ACH) (D13) | ×1 | 7 | 4 |
Where H0543 has members
California (243,320)
Want to move a measure before December 31? Marples, the Carelytics care gap and member engagement platform, ranks the members whose open gaps would move a measure across the next cut point and reaches them by secure text. See how Marples works
Other UnitedHealth Group, Inc. contracts
H0169 · UnitedHealthcare · 3.5 starsH0251 · UnitedHealthcare · 3.0 starsH0294 · UnitedHealthcare · 3.0 starsH0321 · UnitedHealthcare · 3.5 starsH0332 · KelseyCare Advantage · 4.5 starsH0421 · UnitedHealthcare · 3.0 starsH0432 · UnitedHealthcare · 3.5 starsH0609 · UnitedHealthcare · 4.0 starsH0624 · UnitedHealthcare · 3.5 starsH0710 · UnitedHealthcare · 5.0 starsH0755 · UnitedHealthcare · 3.5 starsH0764 · UnitedHealthcare · 3.0 starsH1045 · UnitedHealthcare · 4.0 starsH1278 · UnitedHealthcare · 3.0 starsH1360 · UnitedHealthcare · 3.0 starsH1537 · UnitedHealthcare · 4.0 starsH1659 · UnitedHealthcare · 3.5 starsH1889 · UnitedHealthcare · 3.5 starsH1961 · Peoples Health · 3.5 starsH2001 · UnitedHealthcare · 4.5 starsH2226 · UnitedHealthcare · 3.5 starsH2247 · UnitedHealthcare · 3.0 starsH2272 · UnitedHealthcare · 3.5 starsH2292 · UnitedHealthcare · 5.0 starsH2385 · UnitedHealthcare · not ratedH2406 · UnitedHealthcare · 4.0 starsH2445 · UnitedHealthcare · 3.5 starsH2509 · UnitedHealthcare · 3.5 starsH2736 · UnitedHealthcare · not ratedH2802 · UnitedHealthcare · 3.5 stars
Sources: CMS 2027 and 2026 Star Ratings data tables (CMS Part C and D performance data); CMS monthly enrollment by contract and county (October 2026). Sourced: CMS marks figures taken from CMS. Calculated marks figures Carelytics added up or compared. Built 2026-10-25.