Built by a pediatrician · Sits on top of your EHR

The pediatric intelligence layer.
Knows your patients. Knows their siblings.

Northstar isn't another chart. It's the brain that lives on top of your EHR — reading, reasoning, and writing for you. Built around how pediatricians actually think: weight-based, family-shaped, source-grounded, calm.

FHIR R4 native Multi-EHR overlay 17 audited AI surfaces No vendor lock-in

How it sits

Your EHR is the filing cabinet. Northstar is what reads and writes for you — with pediatric judgment baked in, end to end.

You The pediatrician at the room Calm. In flow.
Northstar Pediatric intelligence layer / AI + content + family graph Reads + writes via FHIR
EHR Whatever you already use / FHIR-fluent layer Stays exactly where it is

Pediatric-first thinking

Decisions a peds brain would make, every time.

A few moments where Northstar's pediatric judgment shows through. Every surface below is grounded in source — and audited.

Dosing

Knows the weight. Knows the indication. Cites the source.

Type a drug, a weight, and what you're treating. Northstar reads the chart's most recent weight, picks the right indication-specific dose range, computes the suspension volume from the concentration, and shows you the published source — every time.

Try to exceed mg/kg/day? Hard stop, override required, audit captured.

/tools/dosing · 13 drugs · DailyMed-cited
Family graph

The room you're walking into has a family in it.

Every patient's briefing shows their siblings — name, age, vaccine status, any current concerns. Custody-share guarantors, half-sibling taxonomy, foster-parent designations: all modeled, all visible, all FHIR-native.

⌘→ flips to the next sibling without leaving the tab you're on.

F2 · F3 · F4 — RelatedPerson + Account.guarantor
AI safety

Refuses to draft what a pediatrician wouldn't sign.

Every AI surface is source-grounded: the model only writes what's supported. An asthma action plan whose red zone forgets "call 911"? Rejected before it ever reaches you. A refill that substitutes a different inhaler? Rejected. An AVS that names a vaccine not given today? Rejected.

Seventeen surfaces. Seventeen parsers. Every accepted output captured to an audit trail you can read.

17 audit surfaces · judge prompts · graded scenarios
Growth

The right curve for the right baby.

A 28-week NICU graduate doesn't belong on a CDC curve. Northstar auto-picks Fenton 2013 for active preterm, Olsen 2010 when an intrauterine reference is what you want, WHO with corrected age once they've come home, and CDC after 24 months when correction phases out.

Source-cited every step. Anchor-tested at every published table point.

D10 · Fenton 2013 (PMID 23601190) · Olsen 2010 (PMID 20100760)
Practice ops

Sees your day the way families experience it.

Today's schedule, grouped by family. If three siblings come in back-to-back, you see them as one unit — same room, same parent, shared concerns. Inbox messages from a family thread surface against the right child without you chasing them.

F4 · FamilyDayCard · Practice home
End of visit

One button. Sign + send.

Hit sign. Northstar drafts the after-visit summary from your note — grounded in what you actually wrote, plus today's vaccine diff, the active med list, the allergies. Edit if you want. Send through Spruce or email. The PDF lands on letterhead.

Refills are the same: classify, dedupe, sign, notify. Source-grounded. Audit captured.

C1 · C2 — AVS + one-click refill
More to see
Six features barely scratch the surface.
See everything Northstar does →

See it in motion

The three surfaces you live in.

The practice in the morning. A patient in the room. The inbox after lunch. Calm clinical instruments — same density as the live product.

northstar.app/
Tuesday · Apr 28
Practice home
Today's schedule · Day brief · Spruce inbox · Family Day
MH
Dr. Hobbs
Today 4 patients
09:00 Mia Cohen· 4 y · WCC vaccines current
09:30 Ezra Cohen· 7 y · WCC 2 imms due
10:00 Noa Cohen· 18 mo · ear recheck ear ✓ last week
10:30 Oliver Park· 56 d · NICU graduate f/u growth narrative
Needs you 2
Ezra Cohen · 2 overdue vaccines · Tdap, MCV4
Oliver Park · GA 28w — Fenton 2013 curve will be applied automatically

Day brief

4 patients · 3 WCCs · 1 NICU graduate. The Cohens come as a family — same room, same parent, shared concerns.

Family day · Cohen

Mia · 4 y · 09:00
Ezra · 7 y · 09:30
Noa · 18 mo · 10:00
same parent · 1 Spruce thread open

Spruce inbox

3 new threads · 1 refill · 2 schedule

Drafts

No drafts. AVS will queue here after each sign.
northstar.app/patient/mia-cohen/briefing
⌘ ← prev sibling · ⌘ → next
Patient chart
Briefing tab · sibling-aware · pre-visit AI summary
MH
Dr. Hobbs
Mia Cohen
4 y · F · Spanish-preferred · seen 2 weeks ago · DOB 2022-03-14
vaccines current Spruce thread open
Briefing
Timeline
Notes
Problems
Meds
Vitals
Growth
Screenings
Family
Inbox
AI briefing
4-year well visit today. Ear infection 3 weeks ago, completing amoxicillin (day 7 of 10). One overdue developmental screen (ASQ-3 4y). Three siblings active in the practice.
grounded · scored
Active problems
· Acute otitis media — resolving
· Atopic dermatitis — well controlled
· No chronic conditions
Meds & allergies
Amoxicillin susp 400/5 — 6.2 mL BID, day 7 of 10
No drug allergies on file
In this family
Ezra· 7 y · brother 2 overdue
Noa· 18 mo · half-sister current
Jonah· 14 y · brother DM open
Guarantor: custody-share 50/50
Recent vitals · 2 wk ago
Weight 16.8 kg (57th %ile)
Height 102 cm (48th %ile)
Temp 37.2 °C   HR 98
Screenings due
overdue ASQ-3 (4 y)
due Hgb (Bright Futures)
Lipid panel — not due until 9 y
northstar.app/inbox
12 in queue · AI triaged
Inbox
Unified · AI-triaged on every ingest · same-page focus selection
MH
Dr. Hobbs
Mia Cohen's mom9m
"Mia woke up with a fever of 101.4 and is acting tired…"
sick-later
Avery Stein31m
"Can we reschedule tomorrow's 9am for next…"
schedule
Quest results1h
Hgb 11.8 g/dL · ferritin 12 · iron studies…
results
Theo Patel's dad2h
"He's had a small rash on his belly for two days…"
informational
Lila Romero3h
"Just wanted to say thanks for fitting us in…"
informational
Mia Cohen
4 y · parent question · via Spruce DM
draft · grounded in chart
Hi! Mia woke up with a fever of 101.4 and is acting tired but still eating ok. Should we come in or wait it out?
Northstar drafted a reply:
grounded · 4y · no allergies
Hi! At 4 years old, a fever around 101 with otherwise OK behavior and intake is usually safe to watch at home. Push fluids and keep her comfortable.

Call us right away if her fever climbs above 104, she becomes hard to wake, refuses to drink, or this lasts more than 3 days. If she's uncomfortable, weight-appropriate ibuprofen is fine — her dose is in your records.

Let me know how she does tomorrow. Hope she feels better soon!
▶ Send Edit Open chart
Reply will be sent via Spruce on the existing thread…

Safety substrate

17 surfaces. Each one audited.

Every AI surface in Northstar ships with a strict source-grounded prompt, a parser that refuses unsafe output, a judge that scores hallucination & omission & format drift, and graded reference scenarios you can run on demand. Nothing gets shipped that we can't grade.

01scribeSource-grounded SOAP drafts
02inbox-triageInbox classifier with red-flag override
03cdsClinical decision support cards
04command-palette⌘K AI answers
05briefing-summaryPre-visit patient briefing
06document-importRecords-pipeline extraction
07template-generationNote template authoring
08growth-narrativeChart-aware growth interpretation
09bili-decisionNewborn bili plans, AAP 2022 tables
10dosing-suggestionWeight-based dose suggestion
11avs-draftAfter-visit summaries
12refill-decisionOne-click refill output
13forms-factoryPatient-facing forms
14action-planAsthma · anaphylaxis · seizure · eczema
15anticipatory-guidanceBright Futures parent handouts
16care-plan-updateCarePlan delta suggestions
17multi-patient-routingScribe sibling-shift detector

Why it's different

Five things you won't find stitched together anywhere else.

01

Pediatric clinical depth

Vaccine engine, AAP bili tool, weight-based dosing, Fenton/Olsen preterm curves, 13 screeners — all source-cited, all auditable. Not a peds skin on adult software.

02

AI safety that earns the word

Source-grounded parsers that actually refuse unsafe output. 17 audited surfaces. Judges and graded reference scenarios you can run any time.

03

Sits on your EHR

Northstar is the layer above. Your existing EHR keeps the legal record. You keep every workflow you already run. Northstar adds the brain.

04

Family-shaped, not patient-shaped

First-class siblings, custody-share guarantors, half-sibling taxonomy, family encounters. The data model knows pediatrics is a household business.

05

No second source of truth

Your EHR keeps the legal record. Northstar adds the brain. Nothing gets duplicated, nothing gets locked behind a new vendor. Speaks FHIR R4 so it slots in without trapping your data.