JL
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Leonard, Emergency Medicine Specialist in Concord, CA?
Dr. John Leonard, MD is an Emergency Medicine Specialist, who primarily practices in Concord, CA with 1 additional practice location. He is board certified by the American Board of Emergency Medicine. Dr. Leonard graduated from University of California and completed his residency at La Co Harbor UCLA Med Center. Dr. Leonard is fluent in English, and is currently seeing new patients. Dr. Leonard’s practice accepts Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Leonard’s office at (925) 939-3000.
Where did Dr. Leonard go to medical school and complete their residency?
Residency: La Co Harbor UCLA Med Center
Medical School: University of California
Is Dr. Leonard board certified in Emergency Medicine Specialist?
Yes, Dr. John Leonard, MD is board certified by the American Board of Emergency Medicine
What languages does Dr. Leonard speak?
Dr. Leonard and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Leonard treat?
As a Emergency Medicine Specialist, Dr. Leonard diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Leonard. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Upper body pain
ICD-10 Codes:
- R079: Chest pain, unspecified
Also known as:
- Common Cold
- Upper Respiratory Infection
- Head Cold
- Cold Symptoms
ICD-10 Codes:
- J069: Acute upper respiratory infection, unspecified
Also known as:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Pectoral pain
ICD-10 Codes:
- R0789: Other chest pain
Also known as:
- Viral Infection
- Virus Infection
- Viral Illness
- Common Virus
ICD-10 Codes:
- B349: Viral infection, unspecified
Also known as:
- Exposure to COVID-19
- COVID-19 (Coronavirus Disease 2019)
- COVID-19 contact
- Suspected coronavirus exposure
- SARS-CoV-2 exposure
ICD-10 Codes:
- Z20822: Contact with and (suspected) exposure to COVID-19
Also known as:
- Dizziness
- Dizziness and Vertigo
- Lightheadedness
- Giddiness
- Vertigo
ICD-10 Codes:
- R42: Dizziness and giddiness
Also known as:
- Headache
- Head pain
- Cephalalgia
- Tension headache
ICD-10 Codes:
- R519: Headache, unspecified
Also known as:
- COVID-19
- COVID-19 (Coronavirus Disease 2019)
- Coronavirus Disease 2019
- SARS-CoV-2 Infection
- Novel Coronavirus
ICD-10 Codes:
- U071: COVID-19
Also known as:
- Muscle Weakness
- Muscle Disorder
- Loss of strength
- Fatigue
- Muscle fatigue
ICD-10 Codes:
- R531: Weakness
Also known as:
- Head Injury
- Head Injuries
- Head Trauma
- Cranial Injury
- Brain Injury
ICD-10 Codes:
- S0990XA: Unspecified injury of head, initial encounter
Also known as:
- Abdominal Pain
- Stomach Ache
- Belly Pain
- Stomach Pain
ICD-10 Codes:
- R109: Unspecified abdominal pain
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Urinary Tract Infection
- UTI
- Bladder infection
- Kidney infection
- Urine infection
ICD-10 Codes:
- N390: Urinary tract infection, site not specified
Also known as:
- Flu with Respiratory Symptoms
- Flu
- Influenza with Breathing Problems
- Flu with Cough
- Severe Flu
ICD-10 Codes:
- J101: Influenza due to other identified influenza virus with other respiratory manifestations
Also known as:
- Fainting
- Syncope
- Passing out
- Collapse
ICD-10 Codes:
- R55: Syncope and collapse
Also known as:
- Shortness of Breath
- Breathing Problems
- Difficulty breathing
- Breathlessness
- Dyspnea
ICD-10 Codes:
- R0602: Shortness of breath
Also known as:
- Sore Throat
- Acute pharyngitis
- Throat inflammation
- Acute throat infection
ICD-10 Codes:
- J029: Acute pharyngitis, unspecified
Also known as:
- Low Back Pain
- Back Pain
- Lumbago
- Lower Back Ache
- Backache
ICD-10 Codes:
- M5450: Low back pain, unspecified
Also known as:
- Non-Infectious Gastroenteritis and Colitis
- Digestive Disease
- Inflammation of Stomach and Intestines
- Non-Bacterial Colitis
- Gut Inflammation
ICD-10 Codes:
- K529: Noninfective gastroenteritis and colitis, unspecified
Also known as:
- Fever
- High temperature
- Pyrexia
- Elevated body temperature
ICD-10 Codes:
- R509: Fever, unspecified
Which procedures does Dr. Leonard perform as a Emergency Medicine Specialist?
As a Emergency Medicine Specialist, procedures performed by an Dr. John Leonard may include:
- Emergency Consultation
- Emergency Follow Up
- Emergency Medicine Consultation
- Removal of Foreign Object from Body
- Urgent Care Consultation
- Urgent Care Follow Up
For detailed information, please contact Dr. Leonard's office.
Does Dr. Leonard accept my insurance?
Dr. Leonard accepts most major insurance plans. Important: Please call our office at (925) 939-3000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Leonard accept in Concord, CA?
Dr. Leonard in Concord, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Shield of California
Central Health
Conifer Health Solutions
Contra Costa
Department of Veterans Affairs
Kaiser Permanente
Medicaid
Medicare
UnitedHealthcare
View All Insurances
Where is Dr. Leonard's office located?
What is Dr. Leonard's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Leonard's National Provider Identifier (NPI) number is 1578582961.
What common questions do patients ask about Dr. Leonard?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Leonard
What is Dr. John Leonard's specialty?
Dr. Leonard is a Emergency Medicine Specialist near Concord, CA. An emergency physician is dedicated to making prompt decision and taking necessary actions essential for preventing death or additional disabilities. This role encompasses guiding emergency medical technicians in pre-hospital environments as well as providing care within the emergency department. The emergency physician is responsible for the immediate identification, evaluation, treatment, stabilization, and arrangement of a diverse array of adult and pediatric patients facing acute illnesses and injuries. Contact Dr. Leonard to book an appointment today.
Is this Dr. John Leonard affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Leonard is affiliated with John Muir Health Walnut Creek Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Emergency Medicine Specialist?
Explore Emergency Medicine Specialist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is John Leonard accepting new patients in Concord, CA?
Yes, Dr. John Leonard is accepting new patients at this time.
Does Dr. John Leonard offer online booking?
Please contact Dr. Leonard's office at (925) 939-3000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with John Leonard?
Please contact Dr. Leonard's office at (925) 939-3000 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. John Leonard have?
Dr. John Leonard is certified by the American Board of Emergency Medicine.
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