01
Specialty orthopedic care
Knee, hip, shoulder, elbow, foot, ankle, hand, wrist, and spine — one diagnosis, one care team.
- General orthopedics
- Sports medicine
- Joint replacement
- Orthopedic trauma
Advanced orthopedic surgery & spine treatment
in Glendale.
LAOSS Glendale brings board-certified orthopedic surgeons and spine specialists to the Glendale-Burbank corridor — serving Glendale, Burbank, La Crescenta, Eagle Rock, Highland Park, Atwater Village, Silver Lake, and Pasadena. Modern facility, state-of-the-art techniques, compassionate care.
Live · Now Accepting
LAOSS Glendale
Same-day appointments. Coordinated care across specialties.
8
LA offices
Key takeaways
- LAOSS Glendale at 1505 Wilson Terrace, Suite 310 — near the Adventist Health Glendale campus.
- Home to spine surgery, pain management, and joint replacement specialists.
- Easy access from CA-134 (Glendale Ave exit) and I-5.
- Same- or next-day appointments often available. Call (818) 877-2248.
Hours
Office hours
| Mon | 8:00 AM – 5:00 PM |
|---|---|
| Tue | 8:00 AM – 5:00 PM |
| Wed | 8:00 AM – 5:00 PM |
| Thu | 8:00 AM – 5:00 PM |
| Fri | 8:00 AM – 5:00 PM |
| Sat | Closed |
| Sun | Closed |
Getting here
Parking
Patient parking available at the Wilson Terrace medical building.
Transit
On the Adventist Health Glendale campus area. Easy access from CA-134 (Glendale Ave exit) and I-5.
About this office
On the Adventist Health Glendale campus area.
Our Glendale office sits in a modern multi-story medical building on Wilson Terrace, near the Adventist Health Glendale campus. We have easy access from CA-134 (Glendale Avenue exit) and I-5, with patient parking on-site.
This office offers the full range of LAOSS services: orthopedic surgery, joint replacement, sports medicine, arthroscopy, trauma surgery, pediatric orthopedics, and orthopedic spine care — Dr. Siamak Yasmeh, our fellowship-trained spine surgeon, regularly sees Glendale patients here.
We combine advanced techniques and state-of-the-art facilities with the personal touch our smaller-practice setting allows.
Services at this office
What we treat here.
02
On-site diagnostics
Most patients leave their first visit with imaging-confirmed answers and a clear treatment plan.
- On-site X-ray
- MRI scheduling within the week
- PT coordinated with your in-network provider
03
Care that fits your life
Same-day acute-injury slots, PPO-friendly billing, multilingual team, and workers' compensation experience.
- Same-day appointments
- In-network with major insurers
- Spanish-speaking team members
Your care team
Specialists practicing at Glendale.
01
Jose Antonio Acosta, MD
Pain Management & Rehabilitation
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02
Sevag Bastian, MD
Sports Medicine · Shoulder & Elbow
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03
Leah Cyran, MD
Sports Medicine Surgeon
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04
Matthew Longacre, MD
Sports Medicine · Knee
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05
Hayk Stepanyan, MD
Sports Medicine Surgeon
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06
Siamak Yasmeh, MD
Spine Surgeon
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Jazmin Bermudez, PA-C
Orthopedic Physician Assistant
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08
Matthew Lee, PA-C
Orthopedic Physician Assistant
→Neighborhoods served
Patients from across the Glendale area.
We see patients from across the Glendale region. Our most common patient communities include:
- Glendale
- Burbank
- La Crescenta
- Eagle Rock
- Highland Park
- Atwater Village
- Silver Lake
- Pasadena
Not from one of these neighborhoods? You're still welcome — LAOSS sees patients from across Greater Los Angeles, the Conejo Valley, and the Santa Clarita Valley at this office.
Common questions
LAOSS Glendale — FAQ.
- Our Glendale office is at 1505 Wilson Terrace, Suite 310, Glendale, CA 91206 — near the Adventist Health Glendale campus, with easy access from CA-134 (Glendale Avenue exit) and I-5.
- Yes. Dr. Siamak Yasmeh, our board-certified orthopedic spine surgeon, regularly sees patients at our Glendale office for spine consultations, including minimally invasive options.
- Orthopedic surgery, joint replacement, sports medicine, arthroscopy, trauma surgery, pediatric orthopedics, pain management, and orthopedic spine care.
- Yes — same- or next-day appointments are often available. Call (818) 877-2248 and our team will work to fit you in.
- Yes. LAOSS is PPO-friendly and accepts workers' compensation cases at all eight of our LA-area offices.
Ready when you are
Book at Glendale.
Same-day and next-day appointments available. Call us or book online — we'll route you to the right specialist.
Booking now
21 specialists · 8 offices
Greater Los Angeles
On-site X-raySame visit
Most insurers acceptedIn-network