OD-MD comanagement is eye care's great collaborative arrangement: the optometrist provides primary and post-operative care, the ophthalmologist provides surgical and specialty care, and the patient gets both without leaving a coordinated system. That's the brochure version. The working version is a web of handoffs — referrals, records, transfer paperwork, status updates — and every handoff is an opportunity for the patient to fall through, the paperwork to misalign, or the relationship to quietly sour. The practices on both sides that comanage well have stopped treating coordination as courtesy and built it as machinery.
The referral, processed like it matters
For the receiving MD practice, the standard our ophthalmology guides keep repeating: same-day entry of every referral, records requested proactively rather than awaited, the patient contacted within a day, and an appointment offered within a clinically appropriate window. For the referring OD, the mirror-image discipline: referrals sent with complete records the first time (the workup, the imaging, the question being asked), and — the step most offices skip — tracked. A referral log with an open-until-confirmed status converts "did Mrs. Tanaka ever get seen?" from an occasional uncomfortable discovery into a weekly checklist item. Both sides' failures look identical to the patient: nobody called.
The transfer-of-care paperwork
Comanaged surgical care — cataract comanagement being the canonical case — runs on documentation that must agree on both sides: the transfer-of-care agreement, the date care transfers, the modifier-coded claims that split the global fee correctly, and the clinical summary that travels with the patient. Our cataract billing guide covers the fee-split mechanics; the coordination point is simpler and more often fumbled: the paperwork must be generated on surgery day, not reconstructed at billing time, and both offices need their copy before the patient's first post-op visit with the OD. A shared checklist per comanaged case — owned by the surgical practice's coordination seat, confirmed by the OD's — keeps the split clean and the audit trail complete.
The communication loop that keeps referrals coming
Ask ODs why they stopped referring to a particular surgeon and the answer is rarely clinical: it's silence. The referral went in and nothing came back — no confirmation, no surgical report, no post-op summary. The loop that maintains relationships is unglamorous and completely systematizable: an acknowledgment when the referral is received, a report after the consult, an operative summary after surgery, and a care-transfer letter at handback. Every one of these is a templated document triggered by a case-status change — which means every one of them can be owned by a coordinator who generates and sends them the day the trigger fires. Surgical practices that instrument "letters sent within 48 hours of encounter" watch their referral volume respond within quarters. The referring OD's experience of your practice is your correspondence.
Who owns the machinery
Everything above — the logs, the checklists, the letters, the records-chasing — is coordination desk work: portable, daily, protocol-driven, and chronically homeless in busy practices on both sides of the relationship. The ownership answer follows the pattern of our whole series: a dedicated coordinator seat, increasingly remote, running the referral log and correspondence loop as core portfolio — for the MD practice, often folded into the patient-coordinator or surgical-scheduling roles our other guides describe; for the OD practice, into the broader administrative assistant portfolio alongside recall and verification. The economics are the familiar fraction-of-loaded-cost story; the payoff is specific to comanagement: referral relationships are compounding assets, and the machinery is what compounds them. In a referral economy, the practice that never drops a handoff wins by default — patient by patient, letter by letter, year after year.
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