What Medicare Pays vs. What You Might Be Charged

Category	Amount
Medicare Allowed Rate What Medicare approves for this service	$11.22
Typical Billed Amount What providers commonly charge	$25 – $130
Potential Markup How much more you might pay vs. Medicare rate	1059% above Medicare

Why the difference? Providers set their own prices. Without insurance, you may be billed the full amount. Even with insurance, your co-pay is often based on the provider's charge — not the Medicare rate.

What CPT 83036 Means and When It's Used

CPT code 83036 represents a hemoglobin A1c test, commonly called an A1c test. This blood test measures your average blood sugar (glucose) levels over the past 2-3 months by looking at how much sugar has attached to your red blood cells.

Your doctor will order this test if you have diabetes, prediabetes, or if they're screening you for diabetes. For people with diabetes, this test is typically done every 3-6 months to monitor how well your blood sugar is being controlled. The results help your healthcare team adjust your treatment plan if needed.

Unlike daily blood sugar checks you might do at home, the A1c test gives a bigger picture view of your diabetes management over time. It's considered the gold standard for monitoring long-term blood sugar control.

What to Expect on Your Medical Bill

When you see CPT code 83036 on your medical bill, you're being charged for the A1c lab test. The typical cost ranges from $25 to $130, depending on your healthcare provider and location. Medicare reimburses this test at $11.22, which gives you an idea of the actual cost of performing the test.

This test is usually covered by most insurance plans, especially if you have diabetes or prediabetes. You might see it listed as "Hemoglobin A1c" or "HbA1c" on your bill. The charge will typically come from the laboratory that processed your blood sample, which might be different from your doctor's office.

If you have a high-deductible health plan or haven't met your deductible yet, you may be responsible for paying the full amount. Once you've met your deductible, you'll typically pay a copay or coinsurance amount based on your insurance plan.

How to Verify Your Bill is Correct

To check if your CPT 83036 charge is accurate, first confirm that you actually had an A1c test done. Check your lab results or ask your doctor's office to verify the test was ordered and completed. The charge should only appear once per test date, even if other blood work was done at the same time.

Compare the amount you're being charged to the typical range of $25-$130. If your bill is significantly higher than $130, contact the billing department to ask for an explanation. Sometimes charges can be duplicated by mistake or bundled incorrectly with other tests.

If you think there's an error, gather your lab results, insurance explanation of benefits, and the bill in question. Contact your healthcare provider's billing department first, as they can often resolve issues quickly. If needed, you can also contact your insurance company to review the claim. Don't ignore billing errors – most can be resolved with a simple phone call.

Codes Often Confused With CPT 83036

CPT 83037

Frequently Asked Questions

How much does an A1c test cost without insurance?

Without insurance, an A1c test (CPT 83036) typically costs between $25 and $130. The exact price depends on which lab or healthcare facility performs the test and your geographic location.

Is the A1c test covered by Medicare and insurance?

Yes, the A1c test is generally covered by Medicare and most insurance plans, especially for patients with diabetes or prediabetes. Medicare pays $11.22 for this test, and most private insurers cover it as a routine diabetes monitoring test.

Why am I being charged for CPT 83036 if I had other blood tests done?

CPT 83036 is specifically for the A1c test, which is separate from other blood tests like basic metabolic panels or lipid tests. Even if multiple blood tests were drawn at the same time, each test has its own CPT code and separate charge.