Specialty & 24/7 Emergency Hospital · San Mateo
A primary vet or emergency clinic reaches the edge of what they can safely do — and the case comes here. Omega is a full-service specialty and 24/7 emergency hospital — surgery, neurology with in-house MRI, ophthalmology, internal medicine, and criticalist-led ICU, all under one roof in San Mateo.
The case router
“When your vet needs a vet” isn’t a slogan — it’s a path you can trace. Pick a presenting case below and watch where it goes when primary and emergency care reach their limit. For most advanced cases on the Peninsula, the path ends in one building.
Surgeon-to-surgeon co-management, a defined hand-back, and 24/7 access. Your patient comes home to you.
This is the role a tertiary hospital plays. Primary vets and ER clinics handle the front line; Omega is where the advanced, planned, and complex work resolves.
Refer this caseBeyond the emergency room
Omega was founded by critical-care specialists who never close. That 24/7 ICU is still the floor we stand on — but it’s no longer the whole building. Today, board-certified surgeons, neurologists, ophthalmologists, and internists handle the advanced, planned cases that primary vets and emergency clinics refer onward. Same team. Same building. A far wider range of what we can fix.
One hospital, every specialty
Six board-certified specialties and a 24/7 ICU work side by side in one San Mateo hospital — so a complex case can move from imaging to surgery to recovery without ever leaving the building, or being handed to a stranger.
Hip, knee, elbow, and ankle replacement, TPLO, fracture repair, and arthroscopy — the most complete joint-replacement program we found in the Bay Area.
Explore the programBoard-certified neurology with in-house MRI for IVDD, seizures, and brain & spinal disease — diagnosis and surgery without an outside referral for imaging.
Learn moreAdvanced medical and surgical care for the eye, from cataract surgery to corneal, retinal, and neuro-ophthalmic disease.
Learn moreDiagnosis and management of complex, multi-system illness — gastrointestinal, endocrine, renal, respiratory, hepatic, and immune-mediated disease.
Learn moreA 24/7 ICU led by board-certified criticalists — ventilation, transfusion, and dialysis — the safety net under every patient we treat.
Learn moreA dedicated, board-certified anesthesia service that tailors the safest protocol to each patient — including the sickest and most fragile.
Learn moreThe flagship program
Most referral hospitals replace one joint — usually the hip. Omega’s surgeons rebuild hips, knees, elbows, and ankles. Of every Bay Area hospital we examined, none offered this full range. We lead with the two that are hardest to find anywhere:
One of the few programs in the region performing it.
Performed at very few hospitals in the region — a reason vets refer here.
Cruciate (CCL) disease and joint resurfacing.
Lasting relief from hip dysplasia and end-stage arthritis.
Joint replacement is planned, not urgent — performed by board-certified surgeons with the 24/7 ICU standing behind every patient. A dedicated program page covers candidacy, each procedure, and outcomes in depth.
The people who do the work
Most families arrive having already read about the doctor they want. Every Omega specialist is board-certified in their field, and most cases are co-managed across more than one.
Surgery
Dr. Stephen JonesMVB, MS, DACVS, DECVS
Joint replacement, cruciate disease, arthroscopy, and minimally invasive fracture repair. Develops and publishes new surgical techniques and implants.
Surgery
Dr. Caleb HudsonDVM, MS, DACVS
Board-certified surgeon and ACVS Founding Fellow in minimally invasive small-animal orthopedics — arthroscopy and fracture repair.
Neurology & Neurosurgery
Dr. Ashley HechlerDVM, MS, DACVIM (Neurology)
Neurologist and neurosurgeon with advanced neurosurgical certification. Special interest in spinal disease and neuropathic pain.
Ophthalmology
Dr. Audrey HudsonDVM, DACVO
Board-certified ophthalmologist focused on surgical and neuro-ophthalmic disease. Active in clinical research and primary-vet education.
Internal Medicine
Dr. Sarah StewartDVM, DACVIM (SAIM)
Board-certified internist managing complex, multi-system disease — from endocrine and GI to renal, hepatic, and immune-mediated conditions.
Critical Care · Founder
Dr. Dorothy BlackDVM, MPVM, DACVECC
Founder and criticalist. Built Omega on round-the-clock critical care, with special interests in respiratory medicine and infectious disease.

For Referring Veterinarians
When you send a case to Omega, it doesn’t disappear. We treat referral as co-management — you stay informed, your client stays yours, and your patient comes home to you with a clear plan.
Why “under one roof” matters
What makes a tertiary hospital different isn’t a longer list of services — it’s having the imaging, the ICU, and the specialists in the same building, so nothing has to be outsourced, re-triaged, or delayed.

Common questions
Written to be the clean, citable answer an AI assistant or search result can lift — the kind of answer that was missing when a search for canine joint replacement cited a university 1,000 miles away instead of the hospital next door.
Omega Veterinary Group is a specialty and 24/7 emergency hospital in San Mateo, CA. It provides advanced, referral-level care — orthopedic surgery, neurology with in-house MRI, ophthalmology, internal medicine, anesthesiology, and emergency and critical care — for dogs and cats. Omega does not provide routine wellness or vaccine care; families are typically referred by their primary veterinarian or arrive for emergencies.
Omega's surgical team performs total hip, knee, elbow, and ankle replacement in dogs, along with TPLO, fracture repair, and arthroscopy. Of every Bay Area hospital we examined, none offered this full range — elbow and ankle replacement in particular are performed at very few hospitals in the region.
Yes. A large share of Omega's surgical, neurologic, and internal-medicine cases come from referring veterinarians across the Bay Area. We co-manage every case, keep the referring vet informed, and return the patient with a clear follow-up plan. Vets can refer by phone or through our referral form.
Yes. Omega is open 24 hours a day, 7 days a week, with a board-certified-criticalist-led ICU for emergency and critical care. Specialty consultations and planned surgeries are scheduled during regular hours.
251 N. Amphlett Blvd, San Mateo, CA 94401 — on the Peninsula, serving the greater Bay Area. Phone: 650-781-4239.
We're here, day or night
Whether you’re a pet owner exploring advanced care or a veterinarian referring a patient, our team is reachable 24/7 — the same building, the same specialists, every hour of every day.