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UCLA physicians and providers are a select group of experts who have distinguished themselves as innovative leaders in their chosen disciplines. As part of an academic medical center, our doctors have access to advanced diagnostics, treatments, and research that may not yet be widely available elsewhere.

Need help finding a physician who's right for you? Call our Physician Referral Service at (800) UCLA-MD1 or (310) 825-2631, Monday to Friday, 7 am to 7 pm (PST) to assist you one-on-one.

For patient referrals to our Behavioral Health providers, call our Access Center at (800) 825-9989, Monday to Friday, 8 am to 5 pm (PST).

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ABMS: Psychiatry and Neurology, Clinical NeurophysiologyAdolescent PediatricsAdult PsychiatryAdult PsychologyAnatomic PathologyAnatomic Pathology and Clinical PathologyAnatomic Pathology, DermatopathologyAnesthesiologyAnesthesiology, Critical Care MedicineAnesthesiology, Pain ManagementChild and Adolescent PsychiatryClinical GeneticsClinical NutritionClinical PathologyCytopathologyDentistryDermatologyDermatology, DermatopathologyDermatology, Mohs-Micrographic SurgeryDiagnostic and Interventional RadiologyDiagnostic RadiologyDiagnostic Radiology, AbdominalDiagnostic Radiology, BreastDiagnostic Radiology, Cardiology / Cardiovascular DiseaseDiagnostic Radiology, MusculoskeletalDiagnostic Radiology, NeuroradiologyEmergency MedicineEmergency Medicine, Medical ToxicologyEmergency Medicine, Undersea and Hyperbaric MedicineFamily MedicineFamily Medicine, AddictionFamily Medicine, Adolescent MedicineFamily Medicine, Hospice and Palliative MedicineFamily Medicine, Sleep MedicineFamily Medicine, Sports MedicineGeriatric Family MedicineGeriatric PsychiatryGeriatric PsychologyInternal MedicineInternal Medicine, AcupunctureInterventional RadiologyInterventional Radiology, NeuroradiologyLaboratory MedicineMedicine, AddictionMedicine, Allergy and ImmunologyMedicine, Cardiac CongenitalMedicine, Cardiology / Cardiovascular DiseaseMedicine, Clinical Cardiac ElectrophysiologyMedicine, Critical Care MedicineMedicine, East/West MedicineMedicine, Endocrinology - Diabetes and MetabolismMedicine, GastroenterologyMedicine, Geriatric MedicineMedicine, HematologyMedicine, Hematology and OncologyMedicine, Hospice and Palliative CareMedicine, HospitalistMedicine, Infectious DiseaseMedicine, Interventional CardiologyMedicine, Medical OncologyMedicine, NephrologyMedicine, Pediatric CardiologyMedicine, Pediatric Transplant HepatologyMedicine, Pulmonary DiseaseMedicine, RheumatologyMedicine, Sleep MedicineMedicine, Sports MedicineMedicine, Transplant HepatologyNeurological SurgeryNeurological Surgery, SpineNeurologyNeurology, Clinical NeurophysiologyNeurology, EpilepsyNeurology, HeadacheNeurology, Movement DisordersNeurology, Multiple SclerosisNeurology, Neuro-BehavioralNeurology, Neuro-OncologyNeurology, Neuro-RehabilitationNeurology, Neurocritical CareNeurology, Neurodevelopmental DisabilitiesNeurology, Neuromuscular MedicineNeurology, NeuropsychologyNeurology, Pain MedicineNeurology, Sleep MedicineNeurology, Vascular NeurologyNuclear MedicineNurse PractitionerObstetrics and GynecologyObstetrics and Gynecology, Female Pelvic and Reconstructive SurgeryObstetrics and Gynecology, Gynecological OncologyObstetrics and Gynecology, GynecologyObstetrics and Gynecology, Maternal and Fetal MedicineObstetrics and Gynecology, ObstetricsObstetrics and Gynecology, Reproductive Endocrinology/InfertilityOphthalmologyOphthalmology, Cataract and Refractive SurgeryOphthalmology, CorneaOphthalmology, GlaucomaOphthalmology, PediatricOphthalmology, RetinaOphthalmology, UveitisOptometryOrthopaedic SurgeryOrthopaedic Surgery, Adult Reconstructive Surgery - JointsOrthopaedic Surgery, Foot and AnkleOrthopaedic Surgery, Orthopaedic OncologyOrthopaedic Surgery, SpineOrthopaedic Surgery, Sports MedicineOrthopaedic Surgery, Surgery Of The HandOrthopaedic Surgery, TraumaOtolaryngology / Head and NeckOtolaryngology, Plastic Surgery Within The Head and NeckOtolaryngology, Sleep MedicinePathologyPathology, ChemicalPathology, HematologyPathology, Molecular GeneticPathology, NeuropathologyPediatric AnesthesiologyPediatric Diagnostic RadiologyPediatric NeurologyPediatric OphthalmologyPediatric Orthopaedic SurgeryPediatric PathologyPediatric SurgeryPediatricsPediatrics, Allergy and ImmunologyPediatrics, Cardiology / Cardiovascular DiseasePediatrics, Critical Care MedicinePediatrics, DermatologyPediatrics, Developmental BehavioralPediatrics, EndocrinologyPediatrics, GastroenterologyPediatrics, Hematology and OncologyPediatrics, Hospice and Palliative CarePediatrics, HospitalistPediatrics, Infectious DiseasePediatrics, Neonatal-Perinatal MedicinePediatrics, NephrologyPediatrics, Neurodevelopmental DisabilitiesPediatrics, NeurologyPediatrics, Pain MedicinePediatrics, Pulmonary DiseasePediatrics, RheumatologyPediatrics, Sports MedicinePhysical Medicine and RehabilitationPlastic SurgeryPlastic Surgery, Plastic and Reconstructive SurgeryPlastic Surgery, Surgery Of The HandPodiatry, Foot and Ankle SurgeryPodiatry, Foot SurgeryPodiatry, General PracticePodiatry, Sports MedicinePreventive Medicine, Occupational MedicinePsychiatryPsychiatry, Forensic PsychiatryPsychiatry, Neurodevelopmental DisabilitiesPsychologyPsychology, Adult Development And AgingPsychology, ClinicalPsychology, Clinical Child And AdolescentPsychology, Clinical NeuropsychologyPsychology, CounselingPsychology, NeuropsychologyPsychology, TraumaRadiation OncologyRadiologySpeech, Language and Hearing Service Providers, Speech-Language PathologistSurgerySurgery, BariatricSurgery, BreastSurgery, CardiacSurgery, Colon and Rectal SurgerySurgery, Complex General Surgical OncologySurgery, Critical Care MedicineSurgery, EndocrineSurgery, Gastrointestinal/PancreasSurgery, HandSurgery, Oral and MaxillofacialSurgery, Surgical Critical CareSurgery, ThoracicSurgery, Thoracic and CardiacSurgery, TransplantSurgery, TraumaSurgery, VascularTransplant, KidneyTransplant, LiverTransplant, LungUrologyUrology, Female Pelvic and Reconstructive SurgeryUrology, Medical OncologyUrology, Minimally Invasive Surgery and EndourologyUrology, OncologyUrology, Pediatric UrologyUrology, Renal Transplantation

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Juan M. Alcantar, MD

Medicine, Hematology and Oncology
Internal Medicine

Accepting New Patients

Primary Care Physician

LGBTQ Champion

Active

19950 Rinaldi St.

Suite 310

Porter Ranch,CA 91326