Advanced Surgical Care, Rooted Locally.
We provide the focused, high-quality surgical care of a hospital-based program in a dedicated outpatient setting — so you spend less time in a clinical environment and more time healing.
High-Quality Surgical Care, Without the Hospital Stay
Ambulatory surgery centers exist to offer patients a better surgical experience — one that's focused, efficient, and built entirely around your procedure and recovery. At an ASC, every element of care is purpose-built for outpatient surgery: from the specialized equipment to the clinical team's singular focus on same-day procedures.
Research consistently shows that ASC patients achieve outcomes equal to or better than those in hospital-based settings, with significantly higher patient satisfaction scores. Without the competing demands of a large hospital environment, our team gives undivided attention to each patient — from pre-operative preparation through discharge. Most patients are home within hours of their procedure, recovering in a familiar environment rather than an overnight ward.
Founded 2025 in Pasadena, MD
Global Ambulatory Surgery Centers grew out of a simple observation made by the clinical team at Global Pain Management: patients needed more. After years of caring for patients with complex pain conditions at GPM's Pasadena practice, the team saw a consistent gap — patients who required advanced procedural interventions that went beyond what a standard office setting could safely support, yet who had no interest in the overhead, wait times, and impersonal atmosphere of a hospital. GASC was built to fill that space. As an extension of Global Pain Management's mission, our surgery center brings those same trusted providers and that same patient-centered approach into a fully accredited ambulatory surgical facility — offering advanced procedures in an environment our patients already know and trust, with the ability to go home the same day.
2025
Year Founded
Pasadena
Maryland
Meet Your Provider

Medical Director
Haddi Ogunsola, M.D.
Board-Certified · Anesthesiology & Pain Medicine
Dr. Haddi Ogunsola is the founder and medical director of Global Pain Management and Global Ambulatory Surgery Centers. Board-certified in both Anesthesiology and Pain Medicine and fellowship-trained as an Interventional Spine Specialist, Dr. Ogunsola has spent more than a decade providing compassionate, evidence-based interventional care to patients across the Pasadena region. She has been recognized as a Maryland Top Doctor (2024) and Women in Medicine honoree (2023), and is known for her exceptional bedside manner and her commitment to treating the whole patient — not just the diagnosis.
- Interventional pain management
- Spinal injections & nerve blocks
- Radiofrequency ablation
- Same-day outpatient procedures
- Medication management
Our Location
Global Ambulatory Surgery Centers
8031 Ritchie Highway
Pasadena, MD
(443) 825-4050
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