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H0504 · Blue Shield of California (CALIFORNIA PHYSICIANS' SERVICE): 2027 Star Rating
H0504 (Blue Shield of California, CALIFORNIA PHYSICIANS' SERVICE) earned 4.0 stars in the 2027 Medicare Advantage Star Ratings, the same as in 2026. Parent company: California Physicians' Service. Plan type: Local CCP.
2027 overall CMS
4.0
Part C 4.0 · Part D 3.5
2026 overall CMS
4.0
Part C 3.5 · Part D 4.5
Change Calc
Same
2027 vs 2026
Members Calc
54,462
CMS county files, October 2026
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What stands out for H0504
- Most of its members are in California (54,462, 1.7% of Medicare Advantage members in CMS county files there). Calc
- Of the 35 rated contracts with members in California, 4 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 4.0 stars it is at or above the 4-star line that sets 2028 quality bonus payments. CMS rule
- 7 of its 39 rated measures are at 5 stars; 4 are at 1 or 2 stars. Calc
- Its Part D rating (3.5) is lower than its Part C rating (4.0). 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
- Plan Makes Timely Decisions about Appeals (C30, weight ×2): 2 stars, score 99
- Improving or Maintaining Physical Health (C04, weight ×3): 3 stars, score 72
- Controlling High Blood Pressure (C14, weight ×3): 3 stars, score 76
- Plan All-Cause Readmissions (C17, weight ×3): 3 stars, score 11
All 2027 measure scores Sourced: CMS
| Measure | Weight | Score | Stars |
|---|---|---|---|
| Breast Cancer Screening (C01) | ×1 | 80 | 4 |
| Colorectal Cancer Screening (C02) | ×1 | 79 | 4 |
| Annual Flu Vaccine (C03) | ×1 | 73 | 5 |
| Improving or Maintaining Physical Health (C04) | ×3 | 72 | 3 |
| Improving or Maintaining Mental Health (C05) | ×3 | 88 | 5 |
| Monitoring Physical Activity (C06) | ×1 | 56 | 4 |
| Osteoporosis Management in Women who had a Fracture (C10) | ×1 | 52 | 4 |
| Diabetes Care - Eye Exam (C11) | ×1 | 83 | 4 |
| Diabetes Care - Blood Sugar Controlled (C12) | ×3 | 91 | 4 |
| Kidney Health Evaluation for Patients with Diabetes (C13) | ×1 | 78 | 4 |
| Controlling High Blood Pressure (C14) | ×3 | 76 | 3 |
| Reducing the Risk of Falling (C15) | ×1 | 47 | 1 |
| Improving Bladder Control (C16) | ×1 | 37 | 2 |
| Plan All-Cause Readmissions (C17) | ×3 | 11 | 3 |
| Statin Therapy for Patients with Cardiovascular Disease (C18) | ×1 | 88 | 4 |
| Transitions of Care (C19) | ×1 | 60 | 3 |
| Follow-up after Emergency Department Visit for People with Multiple High-Risk Chronic Conditions (C20) | ×1 | 66 | 3 |
| Getting Needed Care (C21) | ×2 | 80 | 3 |
| Customer Service (C23) | ×2 | 89 | 3 |
| Rating of Health Care Quality (C24) | ×2 | 87 | 4 |
| Rating of Health Plan (C25) | ×2 | 88 | 4 |
| Complaints about the Health Plan (C27) | ×2 | 0.15 | 5 |
| Members Choosing to Leave the Plan (C28) | ×2 | 14 | 4 |
| Health Plan Quality Improvement (C29) | ×5 | – | 4 |
| Plan Makes Timely Decisions about Appeals (C30) | ×2 | 99 | 2 |
| Reviewing Appeals Decisions (C31) | ×2 | 100 | 3 |
| 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 | 0.15 | 5 |
| Members Choosing to Leave the Plan (D03) | ×2 | 14 | 4 |
| Drug Plan Quality Improvement (D04) | ×5 | – | 1 |
| Rating of Drug Plan (D05) | ×2 | 89 | 4 |
| MPF Price Accuracy (D07) | ×1 | 99 | 5 |
| Medication Adherence for Diabetes Medications (D08) | ×3 | 89 | 4 |
| Medication Adherence for Hypertension (RAS antagonists) (D09) | ×3 | 91 | 4 |
| Medication Adherence for Cholesterol (Statins) (D10) | ×3 | 90 | 4 |
| 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 | 6 | 4 |
Where H0504 has members
California (54,462)
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Other California Physicians' Service contracts
H2819 · Blue Shield of California · 4.0 starsH4937 · Blue Shield of California · 2.5 starsH5928 · Blue Shield of California · 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.