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Physician Referral Letter and Consult Note

A one-page referral letter built around one clear question, or a consult reply that answers a referral point by point, drafted from your notes.

Helpful to include

Free to start · Opens in your River workspace, ready to edit and share

How to write a referral letter to a specialist

A medical referral letter asks a specialist to help with one patient's care, and it works when the first line tells them what you need. Open with the specific clinical question and the kind of help you want, from advice to a full handover. Then give only the history that bears on it, what has been tried, current medications and allergies, the urgency and how to reach you. Keep it to a page and attach the rest.

The rule that matters most: a diagnosis is not a question. "Atrial fibrillation, please evaluate" leaves the specialist guessing. "Should she start an anticoagulant, given her gastrointestinal bleed in March?" names the decision you need help with, and gives the reply something to answer.

A doctor in a white coat and stethoscope talks on her phone while typing on a laptop at her office desk
Put the question in writing, and call when it can't wait. Photo: Vitaly Gariev on Unsplash

Open the referral letter with the question

Primary care doctors and specialists disagree about how often the reason for a referral gets through. In a 2008 national survey of 4,720 US physicians, 69.3% of primary care physicians said they always or most of the time sent the history and reason for consultation1. Only 34.8% of specialists said they received it that often.

The referral checklist from the American College of Physicians (ACP) asks for the specific clinical question, with a brief summary of the most relevant clinical information2. Put the question in the first line and name the decision you face: whether to start, stop, test, operate or wait. If there are two questions, number them, the more important first, so the reply can answer each by number.

Say what help you want, and how soon

Next, say what kind of help you want. Advice is a different job from taking over a condition. ACP's checklist has you choose one of seven referral types2, from advice before a visit to a complete transfer of care.

Kinds of help you can ask for

Kind of helpWhat the specialist doesExample question
Advice without a visitAnswers from the records, by e-consult, phone or video"Should I treat a TSH of 6.2 with a normal free T4, or recheck it?"
ConsultationSees the patient and advises; you keep managing the problem"Is this inflammatory arthritis, and if so, what should I start?"
ProcedureDoes the test or procedure and sends you the results"Can you do upper and lower endoscopy for her iron deficiency anemia?"
Shared careShares care of one condition; you stay first call"Can you see him yearly for heart failure while I adjust doses between visits?"
HandoverTakes first call for the condition, or for all care"Can you take over her kidney care as she nears dialysis?"

Grouped from ACP's seven referral types.

Then say how soon. ACP's checklist uses three levels: urgent (often 1 to 2 days), subacute (often 1 to 2 weeks) and routine, with exact timing set locally. For an urgent referral, it recommends direct contact between the two practices and a written reason for the urgency.

Phone for anything urgent

A letter is the record, not the alarm. If a finding can't wait for the letter to be read, call the specialist or the on-call service, then note the call in the letter.

Include only what bears on the question

Everything after the question should help the specialist answer it. ACP calls this the pertinent data set: clinical information directly relevant to the referral question2, such as the latest visit note and relevant labs and imaging. Always add current medications and allergies, plus anything that changes how the visit runs, such as hearing loss or the need for an interpreter.

List what has been tried, with start and stop dates and why each was stopped, or the specialist may restart a drug that failed. If a date isn't in the record, write "date not documented" rather than guess. Visit notes in a consistent SOAP format make this quick to pull.

ExampleA referral letter, question firstAn illustrative example written for this guide

Routine referral to neurology from Dr. Sam Example, family medicine. Direct line: 555-0142.

1. Which preventive treatment should she try next for chronic migraine?

2. Will you start it, or advise me and I'll prescribe it?

Why I'm asking: her diary shows 18 headache days a month since March, and two preventives have been stopped for side effects.

Tried: propranolol 80 mg daily, January to April 2026, stopped for fatigue. Topiramate 50 mg twice daily, May to August 2026, stopped for word-finding trouble.

Medications: sumatriptan 50 mg as needed, used about 8 days a month. Allergies: penicillin (rash).

Attached: her last two visit notes and her headache diary.

  • Questions first, numbered. The reply can answer 1 and 2 by number.
  • What failed, with dates. Nobody restarts a drug she couldn't tolerate.
  • Only what bears on it. Her old knee surgery stays in the attached notes.

Attach the full notes rather than pasting them in. In the US, HIPAA permits sharing records with another provider for treatment, and its minimum necessary standard does not apply to disclosures to a health care provider for treatment3. What limits the letter is the reader's time.

Check before you send sensitive records

Some records, such as psychotherapy notes, have stricter federal or state rules and can need the patient's written consent. If you're unsure, ask your privacy officer. This guide is general information about US practice, not legal or clinical advice.

Write a consult note that answers it

If you're the specialist, your consult note is the answer, and it doesn't always arrive. In the same 2008 survey, 80.6% of specialists said they always or most of the time sent results back to the referring doctor1. Only 62.2% of primary care physicians said they received them.

Goldman and colleagues' 1983 ten commandments for effective consultations4 still work as a checklist. Determine the question being asked, communicate as briefly as appropriate and make specific recommendations. Provide contingency plans, and give your recommendations directly to the clinician who asked.

Answer each question first, numbered to match the referral. Then cover the main points of ACP's model referral response checklist5:

  • Diagnoses confirmed, ruled out or still suspected
  • Medication changes, and whether you made them or the referring clinician should
  • Tests still pending, and who follows up each one
  • Any new problem you found, and who takes it on
  • Follow-up, with a time frame and whether it's scheduled

ACP suggests the note reach the referring clinician within a week of the visit, if not sooner. If the referral asked nothing specific, say in your first line what you took the question to be, so the referring office can correct you.

Patients need any change of plan in plain words too, and a patient education handout can explain the condition itself.

Send it, then track the reply

Before you send it, check the patient's health plan. HealthCare.gov notes that in many HMOs, the plan may not pay for specialist care without a referral6 from the primary care doctor. Some tests and procedures also need the plan's approval in advance, through a prior authorization request.

Follow the referral until it's answered. A 2018 study of one large US health system analyzed 103,737 attempts to schedule referrals from primary care to 20 specialties. Only 34.8% resulted in a documented, completed appointment7, and 38.9% had no appointment date recorded.

Log each referral's date sent, question, appointment date and the date the answer arrived. Chase any with no appointment, and any answer still missing a week after the visit.

Before you send a referral

  • The question is in the first line, numbered
  • The kind of help and the urgency are stated
  • Only history that bears on the question is in the letter
  • Everything tried has dates and the reason it stopped
  • Medications and allergies are current
  • The patient knows why they are being referred, and agrees
  • Your direct line is on it, and the full notes are attached

To start from notes you already have, paste them into the tool at the top of this page. It drafts the letter with the question first, or the reply in the referral's numbering, and marks gaps for you to confirm.

How it works

Start with your notes and the question you need answered; if you don't have one yet, River drafts the likely question for you to confirm. It writes a one-page letter in your workspace, with the question numbered in the first line. Below it come only the history that bears on the question, what has been tried with dates, and medications and allergies.

Replying to a referral? River drafts your reply in the referral's own numbering, and when the referral asked nothing specific, it states the question it assumed and invites a correction. It adds nothing clinical of its own: every clinical line comes from your notes, gaps are marked for you to confirm, and it never sends anything.

  1. Paste your notes

    Your recent notes, results and what has been tried, plus the question you need answered, if you know it.

  2. River finds the question

    It puts your question first, or drafts the likely one from your notes for you to confirm.

  3. Get a one-page letter

    Question first, then the history that bears on it, what was tried, medications, allergies and urgency.

  4. Check, sign and send

    Confirm anything marked, ask for a half-page version if needed, then sign and send it yourself.

What you get

  • The question in the first line, numbered, so the specialist's reply can answer it point by point
  • Only the history, results and findings that bear on the question, with the rest listed as attachments
  • Each treatment or test already tried, with start and stop dates and the reason recorded for stopping
  • Medications with doses as written and allergies, marked for you to confirm if your notes lack them
  • The urgency you state, and if you state none, a flag on findings that often need faster review
  • A consult reply in the referral's own numbering, stating the assumed question when none was asked

Common questions

What should a referral letter to a specialist include?

A referral letter should include the specific question you need answered, the kind of help you want and how urgent it is. After that come the history that bears on the question, what has been tried and when, current medications and allergies, and your direct contact details. Keep it to one page and attach the full notes.

What is the difference between a referral letter and a consult note?

A referral letter asks; a consult note answers. The referring clinician writes the letter to ask for a specialist's help with a specific question. The specialist writes the consult note after seeing the patient or reviewing the records, giving the answer, any diagnoses and medication changes, and who does what next. The best pairs share numbering, so each answer matches its question.

Do I need the patient's consent to send records to a specialist?

Usually not, in the US. HIPAA lets you share a patient's information with another provider for treatment without a signed authorization, and its definition of treatment includes referring a patient. Psychotherapy notes, some substance use treatment records and some state-protected information have stricter rules. Either way, make sure the patient knows why you're referring them and agrees.

Can I paste real patient details into River?

Yes, if your organization allows it, which for a US practice usually means a business associate agreement with River. Without one, remove names, record numbers and other identifiers before you paste, and add them back in your own system. River drafts the letter and sends nothing: you review it, sign it and send it yourself.

How do I write a referral letter with River?

Paste your notes into the box at the top of this page and add the question you need answered, if you know it. Choose whether you're sending a referral or replying to one. River writes the one-page letter or reply in your free River workspace, question first, and marks anything you need to confirm. Ask for a half-page version if you need one, then sign it.

Is the referral letter and consult note tool free?

Yes, it is free to start. Your referral letter or consult reply opens in a River workspace, where you can edit it, share it or ask River to change it. Paid plans add more AI use and access to the most advanced models.

Sources

  1. Archives of Internal Medicine. “Referral and consultation communication between primary care and specialist physicians: finding common ground.” pubmed.ncbi.nlm.nih.gov (opens in a new tab)

  2. American College of Physicians. “Specialty Out-Patient Referral Request Checklist.” acponline.org (opens in a new tab)

  3. eCFR. “45 CFR 164.502 — Uses and disclosures of protected health information: General rules.” ecfr.gov (opens in a new tab)

  4. Archives of Internal Medicine. “Ten commandments for effective consultations.” pubmed.ncbi.nlm.nih.gov (opens in a new tab)

  5. American College of Physicians. “Model Specialty Out-Patient Referral Response Checklist.” acponline.org (opens in a new tab)

  6. HealthCare.gov. “Referral - Glossary.” healthcare.gov (opens in a new tab)

  7. Journal of General Internal Medicine. “Closing the Referral Loop: an Analysis of Primary Care Referrals to Specialists in a Large Health System.” pubmed.ncbi.nlm.nih.gov (opens in a new tab)

Built by

Chandler Supple

Co-founder & CEO, River

Chandler has spent the last six years working in AI, building tools for millions of users and Fortune 100 companies. In 2025, he co-founded River to build a new kind of operating system for AI agents.

Reviewed by

Brian Joseff, Co-founder, River