| Brain Tumor Center | 310-582-7450 |
| Pituitary Disorders Center | 310-582-7450 |
| Eye, Ear & Skull Base Center | 310-829-8701 |
| Movement Disorders Center | 310-582-7433 |
| Facial Pain Center | 310-582-7450 |
| Adult Hydrocephalus Center | 310-582-7450 |
| Stroke & Aneurysm Center | 310-829-8319 |
| Neuroscience Research Center | 310-829-8265 |
| PNI Foundation | 310-829-8424 |
| Little Company of Mary | 424-212-5361 |
Make an appointment with a specialist.
PNI Providence Saint John’s Health Center, Santa Monica
Brain Tumor Center
Main: 310-582-7450 | Fax: 310-582-7495
Neuro-oncology: 310-829-8265 | Fax: 310-582-7287
Physicians
- Director; Neurosurgeon:
Daniel F. Kelly, MD
310-582-7450 - Co-Director; Neurosurgeon:
Garni Barkhoudarian, MD
310-582-7450 - Neurosurgeon; Chief, Glioma Surgery Program:
Achal Singh Achrol, MD
310-582-7450 - Director, Neurosciences and Neurotherapeutics;
Neuro-oncologist:
Santosh Kesari, MD, PhD
Phone: 310-829-8265 | Fax: 310-582-7287
Clinical and Support Staff
- Neurosurgical Nurse Practitioner:
Amy Eisenberg, MSN, ARNP, CNRN
310-582-7055 - Neurosurgical Nurse Practitioner for Dr. Achrol:
Shelli Chittum, NP - Neuro-oncology Research Nurse:
Marlon Saria, RN, PhD
310-829-8265 - Neurosurgical Clinical Coordinators:
Maricela Sandoval
Natasha Wilson
310-582-7450 - Clinical Coordinator for Dr. Achrol:
Kalina Garcia
310-582-7450 - Neuro-oncology Clinical Coordinators:
Selenia Claros
Shelly Trujillo
310-829-8265 - Financial Liaison:
Marilou Loreto
310-559-8276 - Patient Advocate and Community Outreach:
Sharmyn McGraw
949-302-6989
Pituitary Disorders Center
Main: 310-582-7450 | Fax : 310-582-7495
Physicians
- Director; Neurosurgeon:
Daniel F. Kelly, MD
310-582-7450 - Co-Director; Neurosurgeon:
Garni Barkhoudarian, MD
310-582-7450 - Endocrinology
Pejman Cohan, MD
Phone: 310-657-3030 | Fax: 310-657-9777 - Endocrinology
Sarah Rettinger, MD
Phone: 310-829-8751 | Fax: 310-582-7029
Clinical and Support Staff
- Neurosurgical Nurse Practitioner:
Amy Eisenberg, MSN, ARNP, CNRN
310-582-7055 - Clinical Coordinator:
Natasha Wilson
310-582-7450 - Financial Liaison:
Marilou Loreto
310-559-8276 - Patient Advocate and Community Outreach:
Sharmyn McGraw
949-302-6989
Eye, Ear & Skull Base Center
Main: 310-829-8701
Physicians
- ENT (Otolaryngologist):
Chester Griffiths, MD, FACS - ENT (Otolaryngologist):
Kian Karimi, MD - Neuro-ophthalmologist:
Howard Krauss, MD - Head & Neck Surgeon:
Nathan Pierce, MD
Support Staff
- Clinical Coordinator:
Sherry Leigh - Neuro-ophthalmology Administrator:
Ana Rodriguez - Clinical Coordinator:
Elizabeth Flores, COA - Financial Liaison:
Marilou Loreto
Movement Disorders Center
Main: 310-582-7433
Physicians
- Director; Neurologist:
Melita Petrossian, MD - Director, Restorative Neurosurgery; Neurosurgeon:
Jean-Philippe Langevin, MD
Clinical and Support Staff
- Nurse Practitioner:
Giselle Tamula, MSN, NP-C - Clinical Coordinator:
Felicia Winningham
Facial Pain Center
Main: 310-582-7450
Physicians
- Director, Neurosurgeon:
Garni Barkhoudarian, MD
310-582-7450 - Co-Director, Neurologist:
Marisa Chang, MD
310-829-5968
Clinical and Support Staff
- Neurosurgical Nurse Practitioner:
Amy Eisenberg, MSN, ARNP, CNRN
310-582-7055 - Clinical Coordinator:
Natasha Wilson
310-582-7450 - Financial Liaison:
Marilou Loreto
310-559-8276
Adult Hydrocephalus Center
Main: 310-582-7450
Physicians
- Director; Neurosurgeon:
Garni Barkhoudarian, MD - Co-Director; Neurologist:
Daniel Franc, MD, PhD
Clinical and Support Staff
- Nurse Practitioner:
Giselle Tamula, MSN, NP-C - Clinical Coordinator:
Natasha Wilson - Financial Liaison:
Marilou Loreto
310-559-8276
Stroke & Aneurysm Center
Main: 310-829-8319
Physicians
- Director; Stroke Neurologist:
Jason Tarpley, MD, PhD - Director; Interventional Neuro-radiologist:
George P. Teitelbaum, MD - Director, Neurovascular Surgery; Neurosurgeon:
Achal Singh Achrol, MD
310-582-7450 - Interventional Neuro-radiologist:
Samuel Hou, MD, PhD
Clinical and Support Staff
- Stroke/Neurovascular Program Manager:
Renee Ovando, RN, BSN, SCRN - Neurosurgical Nurse Practitioner for Dr. Achrol:
Shelli Chittum, NP - Clinical Coordinator for Dr. Achrol:
Kalina Garcia
310-582-7450 - Stroke Recovery Group Facilitator:
Dana Rivera
Neuroscience Research Center
Main: 310-829-8265
Research Team
- Director, Neurosciences and Neurotherapeutics;
Neuro-oncologist:
Santosh Kesari, MD, PhD
Phone: 310-829-8265 | Fax: 310-582-7287 - Director, Molecular Oncology, John Wayne Cancer Institute:
Dave S. Hoon, MSc, PhD
310-449-5267 - Research Scientists:
Ivan Babic, PhD
310-582-7464
Elmar Nurmammadov, PhD, MBA
Director, Drug Discovery
310-829-8265
Venkata Yenugonda, PhD
Director, Drug Development Research
310-582-7489 - Program Manager:
Tiffany Juarez, PhD
310-449-5225 - Lab Manager/Research Associate:
Natsuko Nomura
310-582-7462 - Research Associates:
Yueqin Quan
Ariana Waters
Clinical Trials Team
- Director, Center for Quality and Outcomes Research (CQOR):
Marlon Saria, PhD, RN
310-829-8265 - Research Nurse Coordinator:
Annie Heng, RN
310-582-7457 - Clinical Trials Supervisor:
Jaya Mini Gill
- Clinical Research Associate:
Najee Boucher
310-582-7460 - Clinical Research Associate:
Anand Moses
310-582-7097
Support Staff
- Neurocience Clinical Coordinators:
Selenia Claros
Shelly Trujillo
310-829-8265
Pacific Neuroscience Institute Foundation
- Administrative Director, PNI Foundation:
Karter White - Director, Marketing & Communications:
Zara Jethani, MS, MBA - Medical Illustrator & Microdissection Lab Manager:
Josh Emerson
Patient Clinic Appointments
Patients are seen at:
PNI Outpatient Clinic
2125 Arizona Ave., Santa Monica, CA 90404
PNI Hospital Clinic
Providence Saint John’s Health Center
Garden Level and First Floor Clinics
2121 Santa Monica Blvd., Santa Monica, CA 90404
Pacific Eye, Ear & Skull Base Center
2125 Arizona Ave., Santa Monica, CA 90404
and
11645 Wilshire Blvd., Suite 600, Los Angeles, CA 90025
Administrative Offices
Correspondence, medical records and image CDs to be sent to:
Pacific Neuroscience Institute
2125 Arizona Ave., Santa Monica, CA 90404
Phone: 310-582-7450 | Fax: 310-582-7495
PNI Providence Little Company of Mary Medical Center Torrance
Brain Tumor Center
Main: 424-212-5361 | Fax: 310-316-3466
Physicians
- Director; Neurosurgeon:
Daniel F. Kelly, MD - Co-Director; Neurosurgeon:
Garni Barkhoudarian, MD - Neurosurgeon; Chief, Glioma Surgery Program:
Achal Singh Achrol, MD - Neurosurgeon:
Walavan Sivakumar, MD - Director, Neurosciences and Neurotherapeutics;
Neuro-oncologist:
Santosh Kesari, MD, PhD
Clinical Staff
- Neurosurgical Nurse Practitioner:
Rachelle Cruz, MSN, APRN, NP-C
Movement Disorders Center
Main: 424-212-5361 | Fax: 310-316-3466
Physicians
- Director; Neurologist:
Melita Petrossian, MD - Director, Restorative Neurosurgery; Neurosurgeon:
Jean-Philippe Langevin, MD
Clinical Staff
- Nurse Practitioner:
Rachelle Cruz, MSN, APRN, NP-C
Stroke & Aneurysm Center
Main: 424-212-5361 | Fax: 310-316-3466
Physicians
- Director; Interventional Neuro-radiologist:
George P. Teitelbaum, MD - Director; Stroke Neurologist:
Jason Tarpley, MD, PhD - Director, Neurovascular Surgery; Neurosurgeon:
Achal Singh Achrol, MD
310-582-7450 - Interventional Neuro-radiologist:
Samuel Hou, MD, PhD
Clinical Staff
- Neurosurgical Nurse Practitioner for Dr. Achrol:
Shelli Chittum, NP
Patient Clinic Appointments
All patients are seen at:
Providence Little Company of Mary Medical Center Torrance
4201 Torrance Blvd., Suite 520
Torrance, CA 90503
Phone: 424-212-5361 | Fax: 310-316-3466
Consultations
For a consultation with one of our skilled physicians, please fill out our
Schedule A Consultation Form
For locations of our clinics please see
Maps & Directions
