How to Fax Your Doctor or Insurance Company in the USA

At a glance

Why health care still asks for fax

Many US practices, hospitals, pharmacies and insurers still exchange paperwork by fax, because their systems don't always connect and fax is a familiar, accepted channel. We explain the background in Why do doctors still use fax? For you as a patient it simply means: sooner or later someone will say "please fax it to us."

What people commonly fax

• Medical records requests and authorizations – for example a signed form allowing one practice to send your records to another.
• New-patient and intake forms before a first appointment.
• Insurance claim forms with receipts or itemized bills.
• Appeals of a denied claim, with the denial letter and supporting documents.
• Work-related forms such as FMLA certifications or short-term disability paperwork that a doctor completes or an employer requests.
• Pharmacy paperwork where the pharmacy asks for a fax.

Where to find the right fax number

Health care fax numbers are often department-specific. A wrong number can delay things for weeks.

1. Ask the office directly and repeat the number back. Ask which department it reaches (records, billing, referrals).
2. Look on the form. Claim and appeal forms often print the fax number for that exact process.
3. Check your insurer's letter or member portal. Appeals in particular usually have their own fax number on the denial letter.
4. Medicare: there is no general Medicare fax number. Appeals of Original Medicare claims go to the contractor listed on your Medicare Summary Notice. A few central Medicare units are listed on our Medicare (CMS) directory page.
5. Veterans: VA claim intake numbers are on our VA directory page.

How to prepare your fax

• Cover sheet first. Use the free fax cover sheet generator: recipient, department, your name, phone number, page count, and "Confidential". Save as PDF.
• Identify every page. Write your full name, date of birth and member, claim or reference number at the top of each page. Faxed pages get separated.
• One PDF, right order. Cover sheet, form, then supporting documents. A clear phone photo (JPG/PNG) works too.
• Check readability. Grey or coloured backgrounds can turn black on a fax. SendFaxFast detects grey backgrounds and optimizes them before sending, but a clean scan is always best.
• Send only what was requested. Less paper, less risk.

Step by step with SendFaxFast

1. Open sendfaxfast.com on your phone or computer.
2. Upload your PDF, JPG or PNG (up to 100 pages, max. 10 MB).
3. Choose +1 and enter the 10-digit fax number. The form warns you if it looks like a mobile number.
4. Optionally schedule it for the office's business hours.
5. Pay once by card, Apple Pay, Google Pay or PayPal.
6. Keep the delivery report from your email. Your document is deleted from our servers after sending.

Pricing

Privacy: what you should know

HIPAA rules apply to health care providers, health plans and their business associates – not to you as a patient sending your own paperwork. SendFaxFast does not make HIPAA compliance claims, and medical practices that need a business associate agreement should check their requirements before using any fax service. Details: Is online fax HIPAA compliant?

What SendFaxFast does: servers in Germany (EU), payment via Stripe, and your document is deleted after sending. See our privacy policy.

After you send

Call the office or check your portal after one or two business days to confirm the fax reached the right person. Have your delivery report ready – it shows when the fax was delivered. More: How do I know my fax went through?