Name: Dr. Simon Humphries,

Specialty: Internal Medicine (Internist)

Qualification / Board Certification: MD — Medical College of Wisconsin; Board Certified by the American Board of Internal Medicine (ABIM)

Affiliation(s): El Camino Health — Mountain View Hospital, Mountain View, CA

Locations (City/State): Los Altos, CA

Languages Spoken: English, Chinese

Accepting New Patients: Yes

NPI Number: 1023149440

About the Doctor

Dr. Simon Humphries, MD is a highly experienced and board-certified Internist with more than 32 years of dedicated clinical practice in internal medicine. He earned his Doctor of Medicine degree from the Medical College of Wisconsin, a nationally respected institution known for its rigorous medical training and research contributions. Following medical school, Dr. Humphries completed his residency in Internal Medicine at St. Mary’s Hospital and Medical Center, where he gained comprehensive clinical training in diagnosing and managing a broad spectrum of adult medical conditions. He holds board certification from the American Board of Internal Medicine, reflecting his sustained commitment to clinical excellence and professional standards.

Practicing in Los Altos, California, Dr. Humphries has built a distinguished reputation over three decades for providing thorough, compassionate, and evidence-based care to adult patients. His practice encompasses a remarkably wide range of conditions — from common concerns such as high blood pressure, Type 2 diabetes, obesity, and allergies to more complex issues including cerebrovascular disease, encephalopathy, respiratory failure, and anxiety disorders. This breadth of clinical expertise makes him a trusted medical home for patients managing both routine and complicated health challenges.

A particularly notable strength of Dr. Humphries’ practice is his bilingual fluency in English and Chinese, which allows him to serve the significant Chinese-speaking population in the Silicon Valley and Bay Area with fully accessible, culturally sensitive care. He also offers telehealth virtual visits and online appointment booking, making it easier for busy patients to access high-quality internal medicine care on their own schedule. He is affiliated with El Camino Health — Mountain View Hospital and is currently accepting new patients.

Key Highlights:

• Over 32 years of experience in internal medicine
• Board-certified by the American Board of Internal Medicine (ABIM)
• Graduate of the Medical College of Wisconsin
• Bilingual — fluent in English and Chinese
• Telehealth virtual visits and online booking available
• Affiliated with El Camino Health — Mountain View Hospital
• Expertise spanning 20+ commonly treated conditions including COVID-19, cerebrovascular disease, and metabolic disorders
• Currently accepting new patients
• NPI Number: 1023149440

Education & Training

Medical School Medical College of Wisconsin, Milwaukee, WI — Doctor of Medicine (MD)

Residency St. Mary’s Hospital and Medical Center — Internal Medicine Residency (St. Mary’s Hospital and Medical Center Program)

Fellowship / Additional Training No fellowship information is currently listed in Dr. Humphries’ public profile. Please contact his office at (650) 917-6920 for details on any subspecialty or advanced training.

Board Certification American Board of Internal Medicine (ABIM) — Internal Medicine

Medical Conditions Treated

As an Internist with over three decades of experience, Dr. Humphries diagnoses, manages, and provides long-term care for a comprehensive range of adult medical conditions. Conditions he commonly addresses include the following:

• High Blood Pressure (hypertension)
• COVID-19 evaluation, management, and post-COVID care
• Obesity and weight-related metabolic conditions
• Tinea infection (fungal skin infections)
• Nail disorders and nail health conditions
• Lipid metabolism disorders (high cholesterol, dyslipidemia)
• Type 2 Diabetes and blood glucose management
• Preventive care and general wellness
• Anxiety disorders and stress-related conditions
• Depression and mood-related conditions
• Sun damage skin conditions
• Sinus infections (acute and chronic sinusitis)
• Child behavior disorders (in the context of primary care referral)
• Encephalopathy (brain function disorders)
• Cerebrovascular disease (stroke-related conditions and risk management)
• Allergies and allergic reactions
• Insomnia and sleep disorders
• High blood pressure-related heart disease
• Urinary tract infections (UTIs)
• Respiratory failure and acute respiratory conditions

Medical Procedures Performed

Dr. Humphries performs a range of clinical procedures and in-office services as part of his internal medicine practice. These include the following:

• Skin, cyst, and breast examination and evaluation
• Nail care and nail disorder treatment
• Podiatry-related services and foot health assessment
• Annual physical examinations and comprehensive health evaluations
• Preventive health screenings and chronic disease monitoring
• Blood pressure measurement and hypertension monitoring
• Diabetes management including glucose evaluation and medication oversight
• Lipid panel review and cholesterol management
• COVID-19 assessment and management
• Allergy evaluation and management
• Sleep disorder assessment and insomnia management
• Mental health screening (anxiety, depression) within primary care
• Medication management and prescription services
• Telehealth virtual consultations
• Referral coordination to specialists and diagnostic services

Services Offered

Dr. Simon Humphries provides a comprehensive and patient-centered range of internal medicine services designed to support the long-term health of adult patients across a wide spectrum of medical needs. With over 32 years of practice, he brings exceptional depth of experience to every patient encounter, combining evidence-based medicine with genuine attentiveness to each individual’s health goals and concerns.

Preventive Care and Annual Wellness: Dr. Humphries places strong emphasis on preventive medicine as the foundation of long-term health. He conducts thorough annual physical examinations that include comprehensive health screenings, laboratory evaluations, immunization reviews, and personalized counseling on diet, exercise, sleep, and lifestyle modification. These visits are designed to catch health issues early and keep patients informed and proactive about their wellbeing.

Chronic Disease Management: A major component of Dr. Humphries’ practice is the ongoing management of chronic medical conditions. He provides structured, long-term care plans for patients living with hypertension, Type 2 diabetes, lipid disorders, obesity, anxiety, depression, insomnia, and cardiovascular disease. His approach integrates medication management, regular monitoring, and lifestyle-based interventions to help patients control their conditions and maintain a high quality of life over time.

Cardiovascular and Metabolic Care: Dr. Humphries has particular expertise in managing cardiovascular risk factors including high blood pressure, high cholesterol, and hypertension-related heart disease. He also addresses metabolic conditions such as obesity and lipid metabolism disorders, working with patients to reduce their long-term risk of heart attack, stroke, and related complications.

Skin, Nail, and Podiatric Services: Beyond standard internal medicine, Dr. Humphries offers in-office services for skin conditions including fungal infections, sun damage, and cyst evaluation, as well as nail care and podiatry-related services. These offerings reflect the broad, whole-patient scope of his internal medicine practice.

Mental Health in Primary Care: Dr. Humphries screens and manages anxiety disorders and depression within the primary care setting, providing medication management and coordinating referrals to mental health specialists when more intensive support is needed.

COVID-19 and Respiratory Care: Dr. Humphries evaluates and manages COVID-19 infections and post-COVID recovery, as well as acute and chronic respiratory conditions including respiratory failure and sinus infections.

Bilingual Patient Services: Dr. Humphries conducts consultations in both English and Chinese, providing culturally and linguistically appropriate care to Chinese-speaking patients across the Los Altos and greater Bay Area community.

Telehealth and Online Booking: Dr. Humphries offers telehealth virtual visits with online booking available, ensuring that patients can access his care conveniently from home. Telehealth appointments are available for a range of concerns including follow-up care, chronic disease management, prescription renewals, and minor acute conditions.

Services at a Glance:

• Annual physical examinations and comprehensive wellness visits
• Preventive health screenings and counseling
• Hypertension and heart disease management
• Type 2 diabetes management and monitoring
• Obesity and metabolic disorder management
• High cholesterol and lipid disorder treatment
• Anxiety and depression management in primary care
• Insomnia and sleep disorder evaluation
• Sinus infection and allergy management
• COVID-19 evaluation and post-COVID care
• Skin, cyst, and nail care services
• Podiatry-related services
• Cerebrovascular disease monitoring and risk management
• Telehealth virtual visits with online booking
• Bilingual care in English and Chinese
• Medication management and specialist referrals

Accepted Insurance Plans

• Cigna
• Medicare
• UnitedHealthcare
• Blue Shield of California
• CVS Health (formerly Aetna)
• Elevance Health Inc. (formerly Anthem)
• Alignment Health Plan
• Express Scripts
• All Other Provider Networks (contact office to verify)

Please call (650) 917-6920 before your appointment to confirm that your specific insurance plan and network are accepted. This list is regularly updated but is not a guarantee of coverage.

Practice Locations

Location 1 — Primary Practice Address: 811 Altos Oaks Dr, Suite 2, Los Altos, CA 94024

Phone: (650) 917-6920

Hospital Affiliations

• El Camino Health — Mountain View Hospital — Mountain View, CA (Admitting privileges; primary hospital affiliation)