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U.S. M.D. Graduate - High School to Graduate Health Sciences Tutor
Ray R.

5.0 (29 ratings)

50 hours tutoring

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About Ray

Bio

I'm Ray, a passionate mentor and teacher with a deep commitment to helping students of all ages and academic levels succeed. Originally from LA, I completed my B.S. in Cognitive Psychology at UCSD, where I cultivated a strong interest in neuroscience and built a robust foundation in the biological and chemical sciences alongside cognitive psychology. I most recently completed medical school at Loyola Stritch, where I gained advanced education in biomedicine through coursework and clinical...

I'm Ray, a passionate mentor and teacher with a deep commitment to helping students of all ages and academic levels succeed. Originally from LA, I completed my B.S. in Cognitive Psychology at UCSD, where I cultivated a strong interest in neuroscience and built a robust foundation in the biological and chemical sciences alongside cognitive psychology. I most recently completed medical school at Loyola Stritch, where I gained advanced education in biomedicine through coursework and clinical training in pharmacology, physiology, and pathology. Currently, I’m in the process of applying for Neurology residency programs.

For over a decade, I’ve had the privilege of teaching students ranging from K-12 to adult learners in core STEM subjects, including biology, chemistry, and mathematics—covering Algebra, Geometry, Calculus, and Physics—at AP high school and college levels. These experiences have honed my ability to adapt to each student’s unique needs. My medical training further allows me to offer specialized guidance in medical sciences such as Physiology, Anatomy, Microbiology, Pharmacology, and Immunology. I’ve successfully supported students in graduate-level programs like nursing, pharmacy, and PA students.

My teaching approach focuses not only on mastering content but also on fostering critical thinking and problem-solving skills that students can carry into future academic and professional endeavors. Whether you need help with foundational concepts, preparing for exams, or tackling advanced topics, I’m dedicated to providing personalized, effective support to help you achieve your goals.

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Education

UCSD
Cognitive Psychology
Loyola Chicago - Stritch SOM
MD

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Approved Subjects

Algebra 1

Algebra 1

I bring a strong academic background and teaching experience in math at all levels from pre-algebra and Algebra 2 to trigonometry and geometry, developed through years of rigorous academic study and tutoring experience with high school and college-level students. I have guided learners across a variety of academic stages, from AP Calculus to advanced university-level calculus for engineering and pre-medical students. I commonly help students with topics like understanding derivatives and their applications, mastering integration techniques, solving differential equations, analyzing limits and continuity, and working through optimization problems. My teaching emphasizes building a strong conceptual foundation and developing problem-solving strategies to tackle complex math problems with confidence.
Algebra 2

Algebra 2

I bring a strong academic background and teaching experience in math at all levels from pre-algebra and Algebra 2 to trigonometry and geometry, developed through years of rigorous academic study and tutoring experience with high school and college-level students. I have guided learners across a variety of academic stages, from AP Calculus to advanced university-level calculus for engineering and pre-medical students. I commonly help students with topics like understanding derivatives and their applications, mastering integration techniques, solving differential equations, analyzing limits and continuity, and working through optimization problems. My teaching emphasizes building a strong conceptual foundation and developing problem-solving strategies to tackle complex math problems with confidence.
Anatomy

Anatomy

I bring a strong academic background and teaching experience in anatomy, enriched by the extensive medical education I received during my time in medical school. This clinical training allows me to translate anatomical details into high-yield test concepts and real-world clinical relevance and application, ensuring a deeper understanding of body structures and their functions. I commonly help students with topics like identifying major organ systems and their relationships, exploring detailed musculoskeletal anatomy, understanding neuroanatomy and the neural pathways, examining cardiovascular and respiratory structures, and interpreting the histological features of various tissues. My goal is to foster a solid anatomical foundation that supports future clinical and biomedical applications.
Biochemistry

Biochemistry

I bring a strong academic background and teaching experience in biochemistry. I've completed both graduate-level and upper-division university biochemistry courses as part of my bachelor's and master's training in molecular biochemistry and cell biology at UC San Diego. These courses covered a wide range of topics including enzyme kinetics, metabolic pathways, protein structure and function, bioenergetics, and molecular signaling. In medical school, I further deepened my knowledge through clinical applications of biochemistry, studying the molecular basis of metabolic disorders, biochemical genetics, pharmacodynamics, and disease mechanisms tied to cellular metabolism. Over the past ten years, I’ve supported students in mastering core and advanced biochemistry concepts at the undergraduate, graduate, and pre-health levels. I commonly assist with topics such as glycolysis, the citric acid cycle, oxidative phosphorylation, electron transport chain dynamics, amino acid metabolism, lipid biosynthesis, nucleic acid structure and function, gene expression regulation, signal transduction pathways, and biomolecular interactions. I also incorporate foundational chemistry principles to reinforce key biochemistry concepts, including acid-base balance, chemical bonding in macromolecules, and thermodynamic considerations in biochemical reactions. Whether you're preparing for exams or trying to understand complex mechanisms, I focus on breaking down biochemistry into manageable, logical components that build confidence and long-term understanding.
Biology

Biology

As a medical school graduate with an undergraduate degree in Biology, I bring both a broad and deep understanding of biology, having studied the subject from the biochemical, molecular, and cellular level to entire organ systems. I’ve excelled in taking and teaching AP Biology as well as undergraduate courses, and further strengthened my expertise through medical school training. With this academic background and years of teaching experience, I support students from K-12 through graduate-level programs in mastering both foundational and advanced topics. These include areas such as cell structure and function, glycolysis, photosynthesis and cellular respiration, molecular genetics, enzyme function, human physiology, classification, and principles of evolution and natural selection. My approach emphasizes problem-solving and practical applications, helping students grasp challenging material and succeed in contexts ranging from AP Biology to healthcare-related fields.
Calculus

Calculus

I bring a strong academic background and teaching experience in calculus, developed through years of rigorous academic study and tutoring experience with high school and college-level students. I have guided learners across a variety of academic stages, from AP Calculus to advanced university-level calculus for engineering and pre-medical students. I commonly help students with topics like understanding derivatives and their applications, mastering integration techniques, solving differential equations, analyzing limits and continuity, and working through optimization problems. My teaching emphasizes building a strong conceptual foundation and developing problem-solving strategies to tackle complex calculus problems with confidence.
Chemistry

Chemistry

I have tutored college and university-level Chemistry, as well as AP Chemistry, for ten years, making it my most requested subject throughout my tutoring career. I have taught from the AP Chemistry level to advanced university coursework, supplemented by the completion of core chemistry classes with a strong emphasis on general chemistry during my pre-medical education. For pre-health students, I incorporate general biochemistry principles to provide a solid foundation in general, organic, and biochemistry. I commonly assist students with a broad range of chemistry topics, including nomenclature, atomic structure, periodic trends, molecular geometry, hybridization, intermolecular forces, balancing reactions, acid-base equilibria, titrations, solubility rules, stoichiometry, thermodynamics, Gibbs free energy, Hess’s Law, enthalpy and entropy, kinetics, reaction mechanisms, the ideal gas law, gas stoichiometry, colligative properties, redox reactions, electrochemistry, equilibrium constants, Le Chatelier’s principle, phase changes, and elemental compounds and chemical bonds. Whether you need help mastering core concepts, problem-solving strategies, or exam preparation, I ensure a clear and structured approach to learning chemistry effectively.
Genetics

Genetics

I bring a strong academic background and teaching experience in genetics. I've completed graduate and upper-division university-level Genetics courses, mastering topics like Mendelian inheritance, molecular biology, and genetic mutations. In medical school, I deepened my knowledge in genomics and the clinical implications of various genetic disorders. I commonly help students with topics like Punnett squares, pedigree analysis, gene expression regulation, chromosomal abnormalities, and genetic recombination.
Geometry

Geometry

I bring a strong academic background and teaching experience in math at all levels from pre-algebra and Algebra 2 to trigonometry and geometry, developed through years of rigorous academic study and tutoring experience with high school and college-level students. I have guided learners across a variety of academic stages, from AP Calculus to advanced university-level calculus for engineering and pre-medical students. I commonly help students with topics like understanding derivatives and their applications, mastering integration techniques, solving differential equations, analyzing limits and continuity, and working through optimization problems. My teaching emphasizes building a strong conceptual foundation and developing problem-solving strategies to tackle complex math problems with confidence.
Microbiology

Microbiology

Through my medical training, I developed a strong foundation in microbiology, studying both pathogenic organisms and the immune responses they provoke. I’ve since tutored students in nursing, PA, and pre-medical programs in understanding microbiological principles, from bacterial classification to virology and host-pathogen interactions. My teaching emphasizes clinical relevance and practical applications, helping students connect textbook microbiology with real-life implications in healthcare, research, and diagnostics.
Neuroscience

Neuroscience

I hold a strong background in neuroscience, built on a cognitive psychology degree from UC San Diego and advanced medical training that emphasized neurophysiology and pathology. As an undergraduate, I conducted addiction neuroscience research, working directly with rodent models to study how behavior links to neural circuitry. My clinical experiences expanded this foundation, from evaluating stroke patients with hemispatial neglect to contributing to multimodal neuroimaging analyses for epilepsy surgical planning. Currently, as a post-doctoral research fellow in neurocognition , I analyze imaging biomarkers in Alzheimer’s disease, bridging research with clinical applications. Across research, clinical work, and nearly a decade of tutoring, I’ve honed the ability to distill complex neuroscience topics into clear, approachable lessons tailored to students of all levels.
Pharmacology

Pharmacology

With extensive medical training and over a decade of tutoring experience, I bring a comprehensive and clinically grounded understanding of pharmacology. I have worked closely with students across a range of graduate-level programs, including master’s-level nursing (MSN, APRN, DNP), pharmacy school (PharmD), physician assistant studies, and medical school. My instruction emphasizes not only the molecular mechanisms and therapeutic classes of drugs, but also their practical application in real-world clinical scenarios—ensuring students are well-prepared for both academic exams and future patient care. In my sessions, I guide students through high-yield pharmacology content such as therapeutic indications, contraindications, adverse effects, and drug-drug interactions. I place special emphasis on understanding drug mechanisms of action and how pharmacokinetics and pharmacodynamics influence treatment choices across various systems. Particular attention is given to core drug categories including cardiovascular agents, antibiotics, CNS medications, endocrine therapies, and anti-inflammatory drugs. I also help students navigate complex areas such as neuropharmacology and psychopharmacology, where understanding receptor targets, side effect profiles, and patient-specific risks is essential. My teaching approach integrates pharmacology with clinical reasoning and pathophysiology, helping students learn how to approach case-based scenarios with a focus on safety, efficacy, and individualized care.
Physics

Physics

I bring a strong academic foundation and over a decade of teaching experience in physics, with a focus on both high school AP and university-level coursework. Through my pre-medical training and extensive tutoring background, I’ve developed a clear and methodical approach to helping students understand the core principles that govern motion, energy, forces, electricity, and wave behavior. I regularly work with students on mastering the laws of motion, solving real-world dynamics problems, and applying concepts of energy conservation in both linear and rotational systems. My instruction also emphasizes understanding gravitational interactions, thermodynamics, and fluid dynamics, all within a unified conceptual framework. In the realm of electricity and magnetism, I guide students through topics like electric fields, potential, circuit behavior, resistance, and electromagnetism, with special attention to connecting abstract concepts to problem-solving techniques. When teaching waves and optics, I help students analyze interference, diffraction, refraction, sound, and light through both a physical and mathematical lens. My sessions prioritize building intuition, translating complex word problems into structured steps, and fostering confidence in applying formulas under exam conditions. Whether you're new to physics or preparing for a challenging university exam, I aim to make the subject both manageable and rewarding through clarity, repetition, and relevance.
Physiology

Physiology

With my graduate-level medical education, I bring an advanced and comprehensive understanding of human physiology and pathophysiology, spanning from molecular mechanisms to the integrated functions of entire organ systems. My training allows me to bridge foundational physiology with real-world clinical scenarios, showing how structure and function dynamically interact in both health and disease. I cover a broad spectrum of topics including homeostasis, hormonal regulation within the endocrine system, cardiovascular dynamics, renal physiology and acid–base balance, respiratory gas exchange, neuromuscular physiology, immunology, gastrointestinal processes, and reproductive function. In each area, I emphasize not only the fundamental mechanisms but also their clinical implications, such as how disruptions in endocrine pathways contribute to metabolic disease, or how immune dysregulation drives inflammatory disorders. By blending the basic sciences with applied medical reasoning, I strive to make physiology both intellectually engaging and practically relevant for learners at every level.
Psychology

Psychology

With a Bachelor’s degree in Cognitive Psychology and minor in Biology along with extensive tutoring experience, I provide students with clear, effective support in mastering psychology concepts. I focus on common topics like behavioral and cognitive development, brain anatomy and function, learning and memory theories, and research methodology. By breaking down complex ideas and connecting them to real-world applications, I help students build a strong foundation in psychology. My personalized approach includes targeted practice and test-taking strategies, ensuring students gain confidence and achieve success in their AP Biology or introductory psychology courses. Interestingly, as well, I spent two years volunteering within an addiction, behavioral neuroscience research lab studying rodent models.
Trigonometry

Trigonometry

I bring a strong academic background and teaching experience in math at all levels from pre-algebra and Algebra 2 to trigonometry and geometry, developed through years of rigorous academic study and tutoring experience with high school and college-level students. I have guided learners across a variety of academic stages, from AP Calculus to advanced university-level calculus for engineering and pre-medical students. I commonly help students with topics like understanding derivatives and their applications, mastering integration techniques, solving differential equations, analyzing limits and continuity, and working through optimization problems. My teaching emphasizes building a strong conceptual foundation and developing problem-solving strategies to tackle complex math problems with confidence.
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Ratings and Reviews

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5.0 (29 ratings)
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4 star
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Reviews

Quick and patient

I was struggling with an admittedly easy topic that just wasn’t clicking. I showed ray a couple problems I was struggling with and he helped break it down into understandable chunks. He pulled up a couple images that helped me understand the concept better and I felt confident in my understanding when the session ended. Super chill, patient, and a good teacher.

Kacey, 1 lesson with Ray

Knowledgeable and Patient

He is incredibly knowledgeable and patient. He takes the time to ensure you thoroughly understand the topic and goes the extra mile by bringing his own illustrations to enhance your understanding. His visual aids make complex concepts much clearer, and his teaching style is highly effective. I highly recommend him!

Padmapriya, 3 lessons with Ray