Every chart, AI‑checked against your center's own criteria.

  • Greenlight Preop reads pre-anesthesia charts for ambulatory surgery centers and checks each one against the center's written patient-selection rules.
  • Nurses get a clear scorecard instead of a stack of scanned pages, and the right patients are confirmed well before surgery day.
  • Anesthesia gets a “Go List” with a tailored summary of each operative patient.

Built by a practicing anesthesiologist. Every decision stays with your clinical team.

FAX 10/28/2026 14:02FROM: ORTHO CLINICP.01/01
HISTORY AND PHYSICALOrthopedic Surgery
PatientSYNTHETIC, PATIENT ADOB03/14/1958 (68 y)
SexMDate10/28/2026
ProcedureLeft total knee arthroplasty

HPI: 68-year-old man with end-stage left knee osteoarthritis. Failed injections and physical therapy.

PMH: Hypertension. Type 2 diabetes. Obstructive sleep apnea on nightly CPAP.

Medications: Lisinopril 20 mg daily. Atorvastatin 40 mg daily. Semaglutide 1 mg SC weekly, last dose 10/24.

Allergies: NKDA.

Functional status: Climbs two flights of stairs without stopping. Uses a cane for knee pain.

Labs: HbA1c 6.4% (09/30/2026). BMP within normal limits.

Exam: BMI 31. Mallampati II. Lungs clear. Heart regular, no murmur. Left knee varus with small effusion.

Plan: Proceed with left TKA at the surgery center pending pre-anesthesia review.

J. SampleElectronically signed: J. Sample, MD
Synthetic patientL total knee arthroplastyInitial assessment
From the scanned H&P
68-year-old man with hypertension and obstructive sleep apnea on nightly CPAP. Takes semaglutide weekly, last dose 10/24. Climbs two flights of stairs without stopping. A1c 6.4% (09/30). Lisinopril, atorvastatin. No known drug allergies.
Functional capacity ≥ 4 METs
Two flights without stopping
Documented
A1c within limit and window
6.4% on 09/30
Documented
Sleep apnea
Confirm CPAP comes on surgery day
Action item
GLP-1 agonist
Hold per center protocol
Action item
Coronary stent or CABG
Not mentioned anywhere in the chart
Clear by omission
Appropriate for the center
2 action items for the nurse's call

Synthetic patient. Highlighted lines on the scan are what Greenlight pulled into the scorecard.

From scanned chart to surgery day

Greenlight does the reading. Your team makes the call. Each case moves through the same five steps, and nothing is approved without a person signing off.

  1. 1

    Upload

    Drop in the history and physical, labs, consult notes and medication lists, however they arrived.

  2. 2

    Read twice

    Each chart is read in full two times and compared against your center's criteria, rule by rule.

  3. 3

    Scorecard

    Every rule gets a result, with the source line shown, so nothing has to be taken on faith.

  4. 4

    Nurse review

    A nurse approves most cases directly and sends the ones that need a physician to MD review.

  5. 5

    Surgery day

    Approved patients land on the day's Go List. Declined cases go to a list for hospital scheduling.

A scorecard that shows its work

The rules come from your center, not from a generic checklist. Greenlight separates what the chart actually says from what it never mentions, because those are different kinds of clear.

DocumentedThe chart states it, with a date where the rule needs one.

Clear by omissionNothing in the chart raises the issue. Shown separately so a nurse can confirm it on the call.

Action itemSomething to settle with the patient: a medication hold, a device to bring, a missing lab.

ExclusionMeets one of the center's refer-out criteria, with the evidence attached.

Appropriate

Meets the center's criteria. Ready for the nurse to approve, with any action items listed for the pre-op call.

Needs review

Something is unclear or undocumented. When the chart can't answer a question, Greenlight says so instead of guessing.

Refer to hospital

Meets an exclusion. The case is flagged with its reasons so scheduling can book the right setting early.

Built around how a pre-op team already works

Nurses lead. Physicians see the cases that need them. Scheduling gets a clean list. Everyone has their own login, so every action is attributable.

Initial assessment

Synthetic patient AL TKA · Tue
Appropriate · 2 action items
Synthetic patient BL4–5 fusion · Wed
Needs review · anticoagulant hold
Synthetic patient CR THA · Fri
Needs review · no dated ECG

Nurse-first review

Every case starts with a nurse, who approves it or escalates it. Any team member can approve a flagged case once it's resolved.

MD review queue

Escalated cases wait in their own queue with the scorecard and the nurse's notes attached.

Pre-op call checklist

A patient summary plus every follow-up question for the phone call, skipping ones that don't apply.

Calendar overview

See each surgery day at a glance and confirm every patient is approved before they arrive.

Go List

A clean day-of-surgery brief for the anesthesia team, limited to what matters that morning.

Hospital scheduling list

Declined cases collect on a printable list, marked once it's sent, so no patient falls through.

Designed for patient data from day one

Greenlight supports clinical judgment. It doesn't replace it, and it's built so that's true in practice, not just on paper.

  • A person signs off on every caseGreenlight recommends. A nurse or physician approves, escalates or declines.
  • Unknowns are never treated as clearIf the chart can't answer a refer-out question, the case goes to review.
  • Hosted on HIPAA-eligible infrastructureRuns in the United States on cloud services covered by a business associate agreement, with US-only processing.
  • Encrypted, with managed keysData is encrypted in transit and at rest, with keys held in a managed key service.
  • Charts don't lingerUploaded documents are purged after a decision. The scorecard is kept for the record.
  • Every action is loggedIndividual logins and an audit log show who reviewed, changed or approved each case.

Made by someone who reads these charts

Greenlight Preop LLC is an Orlando, Florida company founded by Jacob Gissy, MD, a practicing anesthesiologist.

Pre-anesthesia screening at a surgery center is careful, repetitive work: dozens of pages per patient, read against the same list of rules, every week. Greenlight was built to take on the reading so nurses and anesthesiologists can spend their time on the patients who actually need a closer look. It's launching first with an orthopedic and spine surgery center in Central Florida.

See it on your center's criteria

We'll walk through Greenlight Preop using synthetic patients and your own patient-selection rules. Send a note and we'll reply within a business day or two.

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