Frequently Asked Questions

Have questions about your visit, billing, or how to access your records? You’re in the right place.

Questions & Answers

Appointments— FAQs

Referrals

Due to the limited number of endocrinologists in the Austin area, we require a referral from your primary care physician before scheduling a new patient appointment. Once we receive the referral via fax or electronically, a scheduler will contact you. If your insurance requires a referral to see a specialist, that referral must be processed before your visit.

If you’re an existing patient needing extension or additional visits, please have your PCP office request authorization at least one week in advance. We cannot guarantee backdating of referrals.

Your referring physician’s office should submit a written referral to us, specifying the diagnosis for specialist evaluation.

No. For PPO plans, we only require a written referral from your PCP. You do not need further authorization from your insurance.

Yes. Most HMO plans require a referral from your PCP before seeing a specialist. Without this, you may be considered a private pay patient and be responsible for full out-of-pocket costs.

Patients are seen by appointment only. Urgent cases will be scheduled with the next available provider, which may be an Advanced Practice Provider. All referrals must be received prior to your visit.

To schedule, call 512‑458‑8400, option 2. Our scheduling lines are open Monday–Friday, 8:30 am – 4:30 pm, and are closed daily from 12:00 to 1:30 pm.
If you require a thyroid ultrasound before your appointment, we will try to schedule it the same day to minimize repeat visits.

Please bring the following with you:

  • Your insurance card
  • A complete list of your current medications
  • Blood sugar log (if applicable)

When scheduling your first visit, be ready to provide your referring physician’s name, insurance carrier, diagnosis, and mailing address so we can send your confirmation.

We send automated reminders five days before your appointment, letting you confirm or cancel. If you need to cancel or reschedule, please call at least 24 hours in advance, so we can make the slot available to others.

Cancellations with less than 24 hours’ notice may incur a $50 fee.

We understand life happens, but appointment slots are reserved for you and not double-booked. If you do not show, you may be charged a $50 no-show fee.

Our Advanced Practice Providers (APPs) — such as PAs, NPs, or Clinical Nurse Specialists — are licensed clinicians who help ensure patients receive timely care. They can prescribe medications and manage many aspects of your treatment plan.

All of our APPs are required to become Certified Diabetes Care and Education Specialist’s (CDCES) once they have adequate clinical experience—ensuring high-quality, specialized support.

Questions & Answers

Billing & Insurance — FAQs

Auto Pay / Card on File

We now offer Auto Pay—you can securely keep a credit card on file so your payments are handled automatically. You can enroll during check‑in via Phreesia or by speaking with a Billing Specialist.

We use a PCI‑DSS compliant system, meaning your card information is securely managed and never stored in our office system.

  • Online: Use our secure Online Bill Pay system
  • By phone: Call (512) 458‑8400, press 6 for Billing, then 1
  • By mail:
      Texas Diabetes & Endocrinology
      110 Deer Ridge Drive
      Round Rock, TX 78681
  • Speak with a Billing Specialist: Call (512) 458‑8400, press 6, then 2
  • We accept most major insurance plans. Please confirm with your provider to ensure TDE is in-network.
    Of note: We accept Medicare & Medicare Advantage plans for existing patients only. Effective 12/23/25, we will no longer accept Aetna insurance.
  • We’re happy to share procedure codes upon request so you can verify coverage before your visit.
  • If your copay isn’t printed on your insurance card, call the number on the back of the card for clarity.

Payment is expected at the time of service for:

  • Copays, coinsurance, or deductibles as required by your insurance
  • The full balance if you do not have insurance
  • 20% coinsurance after Medicare
  • Outstanding balances after insurance processing are due within 30 days

We accept Medicare & Medicare Advantage plans only for existing patients at this time.

You are welcome as a patient even without insurance. In this case, you’ll be considered “Private Pay”. We require a credit card on file for payment, or you may prepay your visit. To receive an estimate before your appointment, call (512) 458‑8400, option 6.

We prefer that you enter your card information during pre-registration via Phreesia (in appointment reminders) for maximum security. Alternatively, you may provide it by phone, mail, or in person, but note: our system never stores your card info in our office systems.

  • We require a referral from your PCP as a new patient, especially because endocrinologists are in limited supply in this region.
  • Some insurance plans need authorization in addition to a referral—check with your insurer.
  • For existing patients needing additional authorization (e.g., extended treatment), ask your PCP to submit it at least one week in advance; we cannot guarantee backdated authorizations.

If your employer, insurance carrier, or another party has asked you to complete a form (for disability, workers’ comp, etc.), please schedule an appointment with your provider to review and request that form. We’ll determine whether it’s something we can complete based on your care.

We send automated appointment reminders 3 days ahead to give you the opportunity to confirm or cancel. If you need to cancel, please do so at least 24 hours in advance so others may use your slot. Late cancellations or missed appointments may incur a $50 fee.

Questions & Answers

Patient Portal — FAQs

How do I sign up?

Call us at (512) 458‑8400 or email referrals@texasdiabetes.com with your name and phone number. We’ll send you a link to register via Updox. If you already have an account but can’t log in, we can issue a temporary password.

It’s a secure, online tool that lets you view test results, request refills, message your care team, and manage appointments—anytime, from any device.

It saves time, reduces phone calls, and keeps you connected to your care with 24/7 access to your health information.

Yes. The portal is HIPAA-compliant and encrypted. Just keep your password private and log in only from trusted devices.

Yes. Authorized caregivers or proxies can be given their own login.

Yes. Authorized caregivers or proxies can be given their own login.

Use the “Forgot Password” or “Forgot Username” links, or call us for help resetting your account.

If you are interested in re-activating your patient portal, please complete the following steps:

  1. Visit: texasdiabetes.mymedaccess.com 
  2. Enter your username and password. If you are needing a temporary password, please contact our office directly.
  3. To opt back in, go to Account > My Profile and check the box labeled ‘Send protected health information to my patient portal’.
  4. Scroll down and select “save” to save changes.

No. For urgent needs, call our office or dial 911.