from the following context, answer the user's query : 
context: 
- ### **Chunk 1: Plan Overview, Service Area, and Eligibility**
- **Title and Introduction**:
   - **Plan Name**: Anthem MediBlue Dual Advantage (HMO D-SNP)
   - **Plan Year**: January 1 – December 31, 2020
   - **Plan Number**: 20VAH3447011
   - **Plan Sponsor**: Anthem HealthKeepers
   - **Service Area**: Includes select counties in Virginia, such as Albemarle, Arlington, Fairfax, Chesapeake, Virginia Beach, etc.
   - **Contact Information**:
     - Non-members: 1-855-558-1434 (TTY: 711)
     - Members: 1-855-363-0724 (TTY: 711)
     - Hours: 8 a.m. – 8 p.m., 7 days a week (October 1 – March 31); Monday to Friday (April 1 – September 30).
   - **Website**: [shop.anthem.com/medicare](https://shop.anthem.com/medicare)
   - **Evidence of Coverage (EOC)**: Available upon request.

- **Eligibility Requirements**:
   - Must be entitled to Medicare Part A and enrolled in Medicare Part B.
   - Must be enrolled in Virginia Medicaid.
   - **Dual Eligible Special Needs Plan (D-SNP)**: For those with both Medicare and full Virginia Medicaid coverage.

- **Medicaid Programs and Cost Sharing**:
   - **Full Benefit Dual Eligible (FBDE)**: Full Medicaid coverage and assistance with Medicare cost-sharing.
   - **Qualified Medicare Beneficiary Plus (QMB+)**: Medicaid pays for Medicare cost-sharing, and full Medicaid benefits are included.
   - **Specified Low-Income Medicare Beneficiary Plus (SLMB+)**: Medicaid pays for the Medicare Part B premium, and full Medicaid benefits are included.
   - **Cost Sharing for Services**: No cost-sharing for Medicare-covered services, as Medicaid covers these expenses. Members pay no or small copays for prescriptions covered under Medicare Part D.

---

### **Chunk 2: Medical Benefits – Hospital, Outpatient, and Doctor Visits**
- **Inpatient Hospital Care**:
   - **Copay**: $0 per stay.
   - **Coverage**: 90 days per hospital stay, plus 60 lifetime reserve days.
   - **Lifetime Reserve Days**: These extra 60 days can be used if the hospital stay exceeds 90 days, but once used up, coverage is limited to 90 days per stay.
   - **Prior Authorization**: Required for certain procedures or drugs.
   
- **Outpatient Hospital and Ambulatory Surgical Center**:
   - **Copay**: $0 for both outpatient hospital services and ambulatory surgical center services.
   - **Recommendation**: Talk to your PCP before getting care from a specialist to ensure the proper referral and avoid issues with coverage.

- **Doctor’s Office Visits**:
   - **Primary Care Physician (PCP)**: $0 copay per visit.
   - **Specialist Visits**: $0 copay per visit.
   - **Recommendation**: Consult with your PCP before visiting a specialist to ensure coordinated care and coverage.

- **Preventive Care and Screenings**:
   - **Copay**: $0 for all preventive care screenings and annual physical exams.
   - **Covered Preventive Services**:
     - Abdominal aortic aneurysm screening, annual wellness visits, bone mass measurement, breast cancer screening (mammograms), cardiovascular screenings, cervical and vaginal cancer screenings, colorectal cancer screenings (colonoscopy, fecal occult blood test, flexible sigmoidoscopy), depression screening, diabetes prevention program, diabetes screenings and monitoring, Hepatitis C screening, high-intensity behavioral counseling, HIV screening, lung cancer screenings, medical nutrition therapy, obesity screenings and counseling, prostate cancer screenings, STI screenings, tobacco use cessation counseling, vaccines (flu, hepatitis B, pneumococcal), and a "Welcome to Medicare" one-time visit.

---

### **Chunk 3: Emergency, Diagnostic, and Lab Services**
- **Emergency Care**:
   - **Copay**: $0
   - **Worldwide Emergency Coverage**: Up to $25,000 annually for emergencies while traveling outside the U.S. for less than 6 months.

- **Urgently Needed Services**:
   - **Copay**: $0

- **Diagnostic Radiology Services**:
   - **Copay**: $0 for services like MRIs, CT scans, etc.
   - **Recommendation**: It’s advised to talk to your PCP first before seeking specialist care.

- **Diagnostic Tests and Procedures**:
   - **Copay**: $0 for all diagnostic tests and procedures.

- **Lab Services**:
   - **Copay**: $0

- **Outpatient X-rays**:
   - **Copay**: $0

- **Therapeutic Radiology Services**:
   - **Copay**: $0 for treatments like radiation therapy for cancer.

- **Hearing Services**:
   - **Medicare-Covered Hearing Services**: $0 copay for exams to diagnose and treat hearing and balance issues.
   - **Routine Hearing Services**: 
     - 1 routine hearing exam and hearing aid fitting/evaluation per year.
     - **Hearing Aid Coverage**: $3,000 annual maximum for hearing aids, with a $0 copay for hearing aids up to this amount.

---

### **Chunk 4: Dental, Vision, and Mental Health Services**
- **Dental Services**:
   - **Medicare-Covered Dental Services**: $0 copay (excluding routine dental work like fillings, extractions, etc.).
   - **Preventive Dental Services**:
     - 2 oral exams, 2 cleanings, 1 dental X-ray, and 1 fluoride treatment annually, all covered with a $0 copay.
   - **Comprehensive Dental Services**:
     - $625 quarterly allowance for services like root canals, crowns, bridges, dentures, and dental implants.
     - Any unused allowance rolls over to the next quarter but expires at the end of the year.

- **Vision Services**:
   - **Medicare-Covered Vision Services**: $0 copay for exams to diagnose and treat diseases or conditions of the eye.
   - **Eyeglasses/Contact Lenses After Cataract Surgery**: $0 copay.
   - **Routine Vision Services**:
     - 1 routine vision exam per year, $0 copay.
     - **Eyewear**: $300 annual allowance for glasses or contact lenses.

- **Mental Health Care**:
   - **Inpatient Mental Health**: $0 copay, with a 190-day lifetime limit for psychiatric hospitals (this limit does not apply to general hospitals).
   - **Outpatient Mental Health**: $0 copay for individual and group therapy services.
   - **Skilled Nursing Facility (SNF)**:
     - $0 copay for up to 100 days per year in a SNF.
   - **Physical Therapy**: $0 copay for physical therapy services.

---

### **Chunk 5: Additional Benefits – Transportation, Prescriptions, and Essential Extras**
- **Ambulance Services**:
   - **Ground/Water Ambulance**: $0 copay per trip.
   - **Air Ambulance**: $0 copay per trip.

- **Transportation**:
   - **Routine Transportation**: $0 copay for 48 one-way trips per year (limited to 60 miles per trip).
   - Trips are restricted to plan-approved locations and require at least 48 hours’ notice.
   - Additional transportation benefits can be selected as part of the Essential Extras package.

- **Medicare Part B Drugs**:
   - **Other Part B Drugs**: $0 copay.
   - **Chemotherapy Drugs**: $0 copay.

- **Prescription Drug Coverage (Part D)**:
   - **Deductible**: No deductible because you get "Extra Help" from Medicare.
   - **Initial Coverage**: Up to $4,020 in total drug costs.
     - **Tier 1 (Preferred Generic), Tier 2 (Generic), and Tier 6 (Select Care Drugs)**: $0 copay.
     - **All Other Generic Drugs**: $0 - $3.60 copay (depending on the level of Extra Help).
     - **All Other Brand Drugs**: $0 - $8.95 copay (depending on the level of Extra Help).
   - **Coverage Gap**: You pay the LIS (low-income subsidy) cost-sharing levels. For drugs on Tier 1, 2, or 6, you pay $0.
   - **Catastrophic Coverage**: Once your out-of-pocket drug costs reach $6,350, the plan covers all Medicare-covered Part D drugs for the rest of the year.

- **Essential Extras**:
   - Choose one of the following:
     - **Transportation**: 60 one-way trips per year.
     - **Personal Home Helper**: 31 visits per year (up to 4 hours per visit).
     - **Assistive Devices**: $500 allowance per year for devices like handrails or shower stools.
     - **Healthy Food Deliveries**: Up to 16 meals per month (4 times per year).
     - **Alternative Medicine**: 24 acupuncture or therapeutic massage visits per year.
     - **Service Dog Support**: $500 allowance per year for service dog care.
     - **Fitness Tracker**: Access to a fitness tracking device and online health programs.
     - **Pest Control**: Quarterly pest control services.
     - **Nutritional Counseling**: 8 nutritional counseling sessions per year.

- **Over-the-Counter Items**:
   - Coverage for approved OTC items, up to $425 per quarter. Unused amounts roll over to the next quarter but expire at the end of the calendar year.

- **Meals Benefit**:
   - **Post-Hospitalization Meals**: 2 meals per day for 7 days after discharge.
   - **Chronic Condition Meals**: 3 meals per day for 14 days to support chronic conditions.

- **SilverSneakers® Fitness Program**:
   - Included at no cost, access to 16,000+ fitness locations and online classes.
question: 
What is the annual maximum coverage amount for hearing aids under the Anthem MediBlue Dual Advantage (HMO D-SNP) plan?