Study guide
6.5 MA Star Ratings & Plan Quality
AHIP Medicare Certification Exam
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1 Introduction
1.1 About the AHIP Medicare Certification Exam 1.2 How to Use This Study Guide
2 Chapter 2: Medicare Program Fundamentals
2.1 What Medicare Is: Program Structure & How Parts A–D Fit Together 2.2 Medicare Part A — Hospital Insurance 2.3 Medicare Part B — Medical Insurance 2.4 Medicare Eligibility Rules (Age 65, Disability, ESRD, ALS)
3 Chapter 3: Medicare Enrollment Periods
3.1 Initial Enrollment Period (IEP) 3.2 Annual Enrollment Period (AEP): October 15 – December 7 3.3 Medicare Advantage Open Enrollment Period (MA OEP): January 1 – March 31 3.4 Special Enrollment Periods (SEPs) & Qualifying Life Events 3.5 Late Enrollment Penalties (Part A, Part B, Part D)
4 Chapter 4: Medigap & Coordination of Coverage
4.1 Medigap (Medicare Supplement) Basics & Guaranteed Issue Rights 4.2 Dual Eligibility & Medicare Savings Programs 4.3 How Original Medicare, MA, Part D & Medigap Interact
5 Chapter 5: Medicare Advantage Plan Types
5.1 Medicare Advantage (Part C) Overview: How MA Differs from Original Medicare 5.2 HMO & HMO-POS Plans 5.3 PPO Plans 5.4 PFFS Plans (Private Fee-for-Service) 5.5 MSA Plans (Medicare Medical Savings Accounts) 5.6 Cost Plans & Employer Group Waiver Plans (EGWPs)
6 Chapter 6: Special Needs Plans & MA Plan Design
6.1 Special Needs Plans (SNPs) Overview 6.2 D-SNP — Dual-Eligible Special Needs Plans 6.3 C-SNP & I-SNP — Chronic Condition & Institutional Special Needs Plans 6.4 MA Benefits, MOOP & Supplemental Benefits 6.5 MA Star Ratings & Plan Quality
7 Chapter 7: Part D Structure & the 2026 Redesign
7.1 Part D Overview & Eligibility 7.2 Formularies & Drug Tiers 7.3 The 2026 Part D Benefit Redesign ($2,100 OOP Cap, $615 Max Deductible, Catastrophic Phase) 7.4 Medicare Prescription Payment Plan (Drug-Cost Smoothing)
8 Chapter 8: Part D Costs, Assistance & Appeals
8.1 Low-Income Subsidy (LIS) / Extra Help 8.2 Part D Late Enrollment Penalty & Creditable Coverage 8.3 Coverage Determinations, Exceptions & Appeals
9 Chapter 9: CMS Marketing Rules & Scope of Appointment
9.1 CMS Medicare Communications & Marketing Guidelines (MCMG) Overview 9.2 Scope of Appointment (SOA): the 48-Hour Rule & Exceptions 9.3 Permitted vs. Prohibited Marketing & Sales Activities 9.4 Marketing Events vs. Educational Events
10 Chapter 10: Enrollment & Disclosure Requirements
10.1 The Pre-Enrollment Checklist (PEC) 10.2 Enrollment Procedures & Application Requirements 10.3 Call Recording & Third-Party Marketing Organization (TPMO) Disclaimers 10.4 Agent & Broker Compensation Rules
11 Chapter 11: Marketing Conduct & Oversight
11.1 Cross-Selling Restrictions & Nominal Gift Value Rules 11.2 Marketing to Vulnerable Populations & Non-Discrimination in Sales 11.3 Website, Social Media & Advertising Compliance 11.4 Complaint Tracking Module (CTM) & Agent Oversight
12 Chapter 12: Understanding Fraud, Waste & Abuse
12.1 Defining Fraud, Waste & Abuse (and the Difference Between Them) 12.2 The False Claims Act 12.3 The Anti-Kickback Statute
13 Chapter 13: Compliance Laws & Screening
13.1 The Stark Law (Physician Self-Referral) 13.2 HIPAA Privacy & Security Basics 13.3 The OIG Exclusion List & Sanctioned-Provider Screening
14 Chapter 14: Reporting, Compliance Programs & Consequences
14.1 Detecting & Reporting FWA 14.2 Compliance Program Requirements (Seven Core Elements) & Non-Discrimination Training 14.3 Consequences & Corrective Action Plans
6.5 MA Star Ratings & Plan Quality
Key Takeaways Explain This Topic AI
CMS rates Medicare Advantage plans on a 1-to-5 star scale, drawing data from HEDIS clinical measures, the CAHPS member experience survey, the HOS health outcomes survey, and CMS administrative data.
Plans with a Star Rating of 4.0 or higher receive a Quality Bonus Payment (QBP) — a 5% increase to their CMS benchmark, which funds richer benefits or lower premiums; new plans get a 3.5% increase.
Beneficiaries can use the 5-Star Special Enrollment Period to switch into any available 5-star MA or Part D plan in their area, once per year, between December 8 and November 30.
Star Ratings measures are not weighted equally — CMS assigns greater weight to patient-experience and outcome measures than to simple process measures.
Cut points (the score thresholds separating each star level) are recalculated annually and can shift year to year, so a plan's rating can change even if its actual performance stays flat.
Last updated: July 2026
Why Star Ratings Matter for the Exam
Star Ratings aren't just a consumer-facing marketing number — they drive real money into plans (through Quality Bonus Payments) and create a real, testable enrollment right for beneficiaries (the 5-Star Special Enrollment Period). Because Star Ratings connect plan finances, marketing claims agents can legitimately make, and enrollment-period rules all in one place, AHIP tests this topic from several angles at once.
Quick Answer: CMS rates Medicare Advantage and Part D plans annually on a 1-to-5 star scale using clinical, survey, and administrative data. Plans at 4+ stars earn a 5% Quality Bonus Payment on their benchmark, and beneficiaries can use the once-a-year 5-Star Special Enrollment Period (December 8–November 30) to switch into any available 5-star plan.
Where the Data Comes From
CMS does not generate Star Ratings from a single source — it pulls from four distinct data streams, each covering a different kind of plan performance:
Data Source What It Measures
HEDIS (Healthcare Effectiveness Data and Information Set) Clinical quality measures — screenings, vaccinations, chronic-condition management (e.g., diabetes control, blood pressure control)
CAHPS (Consumer Assessment of Healthcare Providers and Systems) Member-reported experience — ease of getting care, communication with doctors, overall rating of the health plan
HOS (Health Outcomes Survey) Self-reported physical and mental health outcomes tracked over time
CMS administrative data Plan-reported operational measures — complaint rates, appeals timeliness, call-center hold times, audit findings
Ratings are organized into broad categories (sometimes called domains), which for an MA-PD (Medicare Advantage plan with drug coverage) generally include: staying healthy (screenings/tests/vaccines), managing chronic conditions, member experience, member complaints and appeals, health plan customer service, and — for the Part D side — drug plan customer service, drug plan member complaints, and drug pricing/patient safety.
Measures Are Not Weighted Equally
A common exam trap is assuming every measure counts the same toward the overall score. It doesn't: CMS assigns different weights to different measure categories, and in recent years has increased the relative weight given to patient experience and outcome measures compared to simpler process measures (like whether a screening was completed). The practical implication for agents: a plan can score well on straightforward process measures yet still see its overall rating pulled down by weaker member-experience or outcome scores, because those carry more weight in the final calculation.
Three Different Ratings, Not One
Agents sometimes assume every plan gets a single "Star Rating," but CMS actually publishes up to three separate ratings depending on plan type:
Part C Summary Rating — covers the Medicare Advantage side only; every MA plan (including MA-only plans with no drug coverage) gets one.
Part D Summary Rating — covers the prescription drug side only; every plan with Part D coverage (standalone PDPs and MA-PDs) gets one.
Overall Rating — only MA-PD plans (Medicare Advantage plans that bundle Part D) receive this combined score, blending the Part C and Part D measures together.
A standalone Part D plan will never have an "Overall Rating" — only a Part D Summary Rating — and an MA-only plan without drug coverage will only ever show a Part C Summary Rating. When a client compares two plans' star ratings side by side, an agent needs to confirm both plans are publishing the same type of rating before treating the comparison as apples-to-apples.
Quality Bonus Payments (QBP)
Star Ratings feed directly into plan revenue through the Quality Bonus Payment program:
Plans rated 4.0 stars or higher receive a 5% increase to their CMS benchmark payment rate.
New plans (without enough history for a full rating) receive a 3.5% increase .
Plans below 4.0 stars receive no bonus increase.
That extra benchmark revenue is a major reason high-star plans can afford richer supplemental benefits, lower premiums, or lower cost-sharing — Star Ratings aren't just a quality label, they're a direct funding mechanism. This is also why agents should never guarantee a specific future Star Rating to a prospect: ratings are recalculated annually, cut points shift, and a 5-star plan today is not guaranteed to be a 5-star plan next year.
The 5-Star Special Enrollment Period
This is the direct link back to Chapter 3's enrollment-period material, and it's one of the most specific, numbers-based facts in this module:
If a 5-star Medicare Advantage plan or Part D plan is available in a beneficiary's service area, that beneficiary can use the 5-Star SEP to enroll in it.
This SEP runs from December 8 through November 30 each year.
It can be used once per year .
It applies to switching into a 5-star plan — not a general "switch any time" right, and not available if no 5-star plan exists in the beneficiary's area.
Cut Points Can Move Even If Performance Doesn't
Because CMS recalculates the score thresholds ("cut points") that separate each star level every year — often using statistical clustering across all rated plans nationally — a plan's rating can shift from one year to the next even if the plan's own raw performance data stayed essentially flat, simply because competitors improved (or declined) around it. Agents should present current-year Star Ratings as exactly that: a current-year snapshot, not a permanent plan attribute, and should never promise a rating will hold at the next renewal.
Exam Scenario
A prospect currently in a 3-star MA plan hears about a 5-star plan available in the same county and asks if she can switch outside of AEP. Because a 5-star plan exists in her service area, she can use the 5-Star SEP (available December 8 through November 30, once per year) to enroll effective the month she uses it — she does not need to wait for the next Annual Enrollment Period, and this SEP is available to her regardless of when she last made a plan change.