CPT (Current Procedural Terminology) codes are five-digit numbers that describe every medical service or procedure. Your doctor, hospital, and insurance company use them to communicate exactly what was done. Every line on your medical bill has a CPT code, and knowing the code lets you look up what Medicare pays for that same service.

Why do providers charge so much more than Medicare pays?

Providers set their own "chargemaster" prices, which are essentially list prices. Medicare pays a fixed rate based on the resources each service actually requires (the RVU system for procedures, or the Clinical Lab Fee Schedule for lab tests). Commercial insurers typically pay 150% to 250% of Medicare rates. Uninsured patients are often billed the full chargemaster price, which can be 2x to 30x what Medicare pays.

Can I use Medicare rates to negotiate my bill?

Yes. Medicare rates are the closest thing to a "fair price" benchmark in U.S. healthcare. When negotiating, ask the provider what they accept from Medicare for the same CPT code. Most providers will accept 150% to 200% of Medicare for cash-pay patients, which is still far less than their chargemaster price. Many hospital financial assistance policies also use a multiple of Medicare as their discount floor.

How are Medicare rates calculated?

For most procedures, Medicare uses the Resource-Based Relative Value Scale (RBRVS). Each CPT code gets three RVU components: Work (physician time and skill), Practice Expense (overhead), and Malpractice. These are multiplied by geographic adjustment factors (GPCIs) and a conversion factor ($33.4009 in 2026). Lab tests (80000-89999 range) use a separate Clinical Laboratory Fee Schedule with flat national rates.

CPT 92004

Comprehensive Eye Exam, New Patient

CPT 92004 is a comprehensive ophthalmological exam for a patient seeing an eye doctor for the first time (or returning after 3+ years). It includes a full evaluation of the visual system, and it costs more than an established patient visit. Providers charge an average of $247.06 for this exam, but Medicare pays only $149.64 in an office setting (1.7x markup). The critical decision for patients: whether to bill this to medical insurance or vision insurance can mean a difference of hundreds of dollars.

Updated May 2026Source: CMS Physician Fee Schedule

CPT 92004 at a Glance

Average provider charge: $247.06
Medicare physician fee (office): $149.64
Medicare physician fee (hospital): varies + separate facility fee
Typical markup: 1.7x over Medicare office rate

Exam type: Comprehensive, full visual system
Patient type: New (first visit or 3+ year gap)
Common use: First ophthalmologist visit, referral for eye condition
Beneficiaries (2023): 1.6 million

How the Medicare Rate Is Calculated

Medicare does not set prices arbitrarily. Every procedure is valued using Relative Value Units (RVUs) across three components, then multiplied by a national conversion factor of $33.4009 (2026). Here is the exact math for a 92004 exam:

Component	What It Covers	Office (Non-Facility)	Hospital (Facility)
Work RVU	Physician time, skill, and judgment	1.82	1.82
Practice Expense RVU	Rent, staff, equipment, supplies	2.32	0.43
Malpractice RVU	Professional liability insurance	0.05	0.05
Total RVU		4.19	2.30
x $33.4009	2026 conversion factor	$149.64	$76.82

The new patient premium explained: A new patient comprehensive exam (92004) pays $149.64, while an established patient comprehensive exam (92014) pays approximately $126. That $24 difference reflects the additional work of documenting a full history with no prior records. If you switch eye doctors frequently, you pay this premium each time. Staying with the same ophthalmologist avoids the new patient surcharge.

Medicare Rate by State

Medicare adjusts the national rate based on your location using Geographic Practice Cost Indices (GPCIs). The same 92004 exam pays differently in each state, ranging from about $107 in Arkansas to $147 in Alaska (a 38% spread).

Medicare Rate by State (2026)

Medicare adjusts payments by location using Geographic Practice Cost Indices (GPCIs). Select your state to see the adjusted rate.

Sample State Rates (Office Setting)

State	Medicare Pays	Avg. Charge	Markup
Texas (Austin)	$121.39	$247.06	2.0x
California (Los Angeles)	$130.27	$247.06	1.9x
New York (Manhattan)	$131.65	$247.06	1.9x
Florida (Fort Lauderdale)	$122.54	$247.06	2.0x
Ohio	$112.45	$247.06	2.2x
Mississippi	$107.73	$247.06	2.3x
Arkansas	$106.64	$247.06	2.3x
Alaska	$147.02	$247.06	1.7x

Rates shown are for the non-facility (office) setting using 2026 GPCIs and the $33.4009 conversion factor. The average provider charge of $247.06 is the 2023 national average from CMS utilization data. Actual charges vary by provider.

What Insured Patients Actually Pay for a 92004 Eye Exam

If you have health insurance, you do not pay the provider's full charge of $247.06. Your insurer has a negotiated rate with the provider, typically 120% to 180% of the Medicare rate. For a 92004 exam, that negotiated rate is usually $180 to $270. What you owe depends on your plan design:

Your Situation	What You Likely Pay	How It Works
Copay plan (deductible met or N/A)	$40 to $75	Flat copay per specialist visit
Coinsurance plan (deductible met)	$36 to $54	20% of the negotiated rate ($180 to $270)
High-deductible plan (deductible NOT met)	$180 to $270	You pay the full negotiated rate until your deductible is met
Medicare Part B	$29.93	20% of the Medicare-approved amount ($149.64)
Medicaid	$0 to $5	Minimal or no cost-sharing in most states

Medical insurance vs vision insurance (critical distinction): If you have diabetes, glaucoma, cataracts, macular degeneration, or any diagnosed eye disease, your comprehensive eye exam should be billed to your medical insurance. Medical plans cover disease-related exams. Vision insurance (VSP, EyeMed) only covers routine refractive exams for glasses prescriptions. Billing to the wrong plan can result in a denial or much higher out-of-pocket costs. Tell the front desk about your medical conditions so they bill correctly.

Should You Use Insurance or Pay Cash?

If you have a high-deductible health plan and have not met your deductible, you are paying the full negotiated rate for your eye exam. For a 92004 visit, this is typically $180 to $270 through insurance. Some ophthalmologists offer a cash-pay rate of $125 to $180 for a comprehensive new patient exam.

When Cash-Pay Wins

You are unlikely to meet your deductible this year
The provider's cash rate is below the insurer's negotiated rate
You want to see a specific out-of-network ophthalmologist
You do not have medical insurance but need a medical eye exam

When Using Insurance Wins

You are close to meeting your annual deductible
You expect eye surgery or injections later this year
Your specialist copay is less than the cash rate
You need prior authorization documentation for treatment

Important trade-off: Cash payments do not count toward your insurance deductible or out-of-pocket maximum. If you pay cash for this initial exam and then need cataract surgery, retinal injections, or laser treatment later, the cash payment will not have counted toward your deductible. Factor in your total expected eye care costs for the year before deciding.

Common Billing Problems with 92004

Billed as new patient when you should be established

The 3-year rule determines new vs established status. If you saw the same ophthalmologist (or same specialty in the same group) within the past 3 years, you should be coded as established (92014 at $220 average) rather than new (92004 at $247). Some practices reset your status more aggressively than the rules allow. Check your records: if your last visit was within 3 years, push back on the new patient designation.

Billed to vision insurance when it should be medical

If you were referred to an ophthalmologist for a medical condition (diabetes screening, glaucoma suspect, cataracts), the visit should be billed to your medical insurance using 92004. Some offices default to billing vision plans, which may not cover medical exams or may have lower reimbursement, leaving you with a larger balance. If you have a medical reason for the visit, confirm at check-in that it will be billed to your medical plan.

Unnecessary add-on tests on the first visit

New patient comprehensive exams often come bundled with imaging tests (OCT, visual fields, fundus photography) that add $100 to $300 to the total bill. While some tests are medically indicated for your condition, others may be routine practice rather than clinically necessary for your specific situation. Ask before testing: "Is this test specifically needed for my condition, or is it a standard screening?" You have the right to decline non-urgent tests and schedule them later if needed.

Refraction charge billed separately and denied by insurance

Many ophthalmologists perform a refraction (CPT 92015, glasses prescription check) during the comprehensive exam and bill it separately ($40 to $75). Medical insurance often does not cover refractions, leaving you with a surprise charge. This is legitimate but rarely explained upfront. Ask before your exam whether a refraction will be included and whether your insurance covers it. If not, you can decline the refraction if you do not need an updated glasses prescription.

Related Eye Exam Codes

Code	Description	Medicare (Office)	Avg. Charge
92002	Intermediate exam, new patient	$107.22	$185.00
92004	Comprehensive exam, new patient	$149.64	$247.06
92012	Intermediate exam, established patient	$90.52	$162.44
92014	Comprehensive exam, established patient	$126.41	$220.00
92015	Refraction (glasses prescription check)	Not covered	$50.00

Frequently Asked Questions

How much does a new patient comprehensive eye exam (CPT 92004) cost without insurance?

Without insurance, a comprehensive new patient eye exam billed under CPT 92004 costs $150 to $350 depending on the provider and location. The national average charge is $247.06. Many ophthalmologists offer cash-pay discounts of 15 to 30%, bringing the cost closer to $170 to $210. For comparison, Medicare pays $149.64 for this exam in an office setting.

Should a comprehensive eye exam be billed to medical insurance or vision insurance?

If you have a diagnosed medical condition (diabetes, glaucoma, cataracts, macular degeneration, dry eye, or any eye disease), the exam should be billed to your medical insurance using CPT 92004. Vision insurance covers routine refractive exams for glasses or contact lens prescriptions when no medical condition is present. Billing to the correct plan can save you hundreds of dollars.

Why does a new patient eye exam cost more than an established patient exam?

New patient exams (92004) cost more because the ophthalmologist must perform a complete evaluation with no prior records to reference, document a full medical and ocular history, and establish baseline measurements. The average charge is $247 for a new patient versus $220 for an established patient comprehensive exam (92014). If you switch eye doctors or have not been seen in 3 or more years, you will be coded as a new patient.

What triggers a new patient designation at an eye doctor?

You are coded as a new patient if you have never been seen by that ophthalmologist (or their practice group in the same specialty), or if more than 3 years have passed since your last visit with them. This means if you skip your eye doctor for 3 years and return, you pay the new patient rate ($247 average) instead of the established patient rate ($220 average). Staying consistent with annual visits avoids this premium.

Need Help Lowering a Medical Bill?

CareRoute Bill Defense is a done-for-you bill reduction service. We analyze the codes on your bill, identify overcharges and coding errors, and apply negotiation and reduction strategies on your behalf. If you are dealing with a bill that seems too high, we can help.

Learn about Bill Defense