EverydayHealthLogo
JG

Dr. Johnna Gemelos, DO

San Diego, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Gemelos, Internist in San Diego, CA?

    Dr. Johnna Gemelos, DO is an Internist, who primarily practices in San Diego, CA with 1 additional practice location. She is board certified. Dr. Gemelos is fluent in English, and is currently seeing new patients. Dr. Gemelos’s practice accepts Cigna, Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Gemelos’s office at (619) 691-7000.

    What languages does Dr. Gemelos speak?

    Dr. Gemelos and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does Dr. Gemelos treat?

    As a Internist, Dr. Gemelos 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. Gemelos. 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:

    • Sepsis
    • Blood Poisoning
    • Septicemia
    • Systemic Bacterial Infection

    ICD-10 Codes:

    • A419: Sepsis, unspecified organism

    Also known as:

    • Acute Respiratory Failure with Low Oxygen
    • Respiratory Failure
    • Sudden lung failure with low oxygen
    • Hypoxic respiratory failure
    • Acute breathing failure with hypoxia

    ICD-10 Codes:

    • J9601: Acute respiratory failure with hypoxia

    Also known as:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    Also known as:

    • High Potassium
    • Low Sodium Levels
    • Fluid and Electrolyte Balance
    • Potassium
    • Sodium
    • Hyperkalemia
    • Excess Potassium
    • Hyponatremia
    • Low Blood Sodium
    • Sodium Deficiency

    ICD-10 Codes:

    • E875: Hyperkalemia
    • E871: Hypo-osmolality and hyponatremia

    Also known as:

    • Acute Kidney Failure
    • Kidney Failure
    • Acute Renal Failure
    • Sudden Kidney Failure

    ICD-10 Codes:

    • N179: Acute kidney failure, unspecified

    Also known as:

    • Ischemic Stroke
    • Brain Attack
    • Cerebral Infarction
    • Brain Ischemia

    ICD-10 Codes:

    • I639: Cerebral infarction, unspecified

    Also known as:

    • Heart Attack (NSTEMI)
    • Heart Attack
    • Myocardial Infarction
    • Non-STEMI
    • Less Severe Heart Attack

    ICD-10 Codes:

    • I214: Non-ST elevation (NSTEMI) myocardial infarction

    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:

    • Changes in Mental State
    • Mental Disorder
    • Confusion
    • Disorientation
    • Changes in awareness

    ICD-10 Codes:

    • R4182: Altered mental status, unspecified

    Also known as:

    • Muscle Weakness
    • Muscle Disorder
    • Loss of strength
    • Fatigue
    • Muscle fatigue

    ICD-10 Codes:

    • R531: Weakness

    Also known as:

    • Chest Pain
    • Chest discomfort
    • Thoracic pain
    • Upper body pain

    ICD-10 Codes:

    • R079: Chest pain, unspecified

    Also known as:

    • Fainting
    • Syncope
    • Passing out
    • Collapse

    ICD-10 Codes:

    • R55: Syncope and collapse

    Also known as:

    • Gastrointestinal Bleeding
    • Gastrointestinal (GI) Bleeding
    • GI Bleeding
    • Internal Digestive Bleeding
    • Digestive Tract Hemorrhage

    ICD-10 Codes:

    • K922: Gastrointestinal hemorrhage, unspecified

    Also known as:

    • Brain disease (encephalopathy)
    • Brain Disease
    • Brain disorder
    • Brain dysfunction
    • Encephalopathy

    ICD-10 Codes:

    • G9340: Encephalopathy, unspecified

    Also known as:

    • COPD Flare-Up
    • COPD
    • COPD Exacerbation
    • Chronic Obstructive Pulmonary Disease Flare-Up
    • Worsening COPD
    • COPD Attack

    ICD-10 Codes:

    • J441: Chronic obstructive pulmonary disease with (acute) exacerbation

    Also known as:

    • High Blood Pressure Heart and Kidney Disease with Heart Failure
    • Chronic Kidney Disease
    • Heart Failure
    • High Blood Pressure
    • Hypertensive Cardiorenal Syndrome
    • Heart and Kidney Failure from High Blood Pressure

    ICD-10 Codes:

    • I130: Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease

    Also known as:

    • Heart Failure
    • Congestive Heart Failure
    • CHF
    • Cardiac Insufficiency

    ICD-10 Codes:

    • I509: Heart failure, unspecified

    Also known as:

    • Intestinal Obstruction
    • Bowel Obstruction
    • Blocked Intestines
    • Gut Blockage

    ICD-10 Codes:

    • K56609: Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction

    Also known as:

    • High Blood Pressure Heart Disease with Heart Failure
    • Heart Failure
    • High Blood Pressure
    • Hypertensive Heart Failure
    • High Blood Pressure Causing Heart Failure

    ICD-10 Codes:

    • I110: Hypertensive heart disease with heart failure

    Which procedures does Dr. Gemelos perform as a Internist?

    As a Internist, procedures performed by an Dr. Johnna Gemelos may include:

    For detailed information, please contact Dr. Gemelos' office.

    Does Dr. Gemelos accept my insurance?

    Dr. Gemelos accepts most major insurance plans. Important: Please call our office at (619) 691-7000 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Gemelos accept in San Diego, CA?

    Dr. Gemelos in San Diego, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Alignment Health Plan

    • All Other Third Party

    • Blue Shield of California

    • Centene

    • Community Health Group

    • Medicare

    • Molina

    • OptumRx

    • Other Support Agencies/Consultants

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Gemelos' office located?

    Dr. Johnna Gemelos' Primary Practice

    4077 5th Ave

    San Diego, CA 92103

    (619) 691-7000

    Get Directions

    Dr. Johnna Gemelos' Practice 2

    435 H St

    Chula Vista, CA 91910

    Get Directions

    What is Dr. Gemelos's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Gemelos's National Provider Identifier (NPI) number is 1528300928.

    What common questions do patients ask about Dr. Gemelos?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Gemelos

    What is Dr. Johnna Gemelos's specialty?

    Dr. Gemelos is a Internist near San Diego, CA.

    A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

    Contact Dr. Gemelos to book an appointment today.

    Is this Dr. Johnna Gemelos affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Gemelos is affiliated with Scripps Mercy Hospital San Diego 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 Internist?

    Explore Internist 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 Johnna Gemelos accepting new patients in San Diego, CA?

    Yes, Dr. Johnna Gemelos is accepting new patients at this time.

    Does Dr. Johnna Gemelos offer online booking?

    Please contact Dr. Gemelos's office at (619) 691-7000 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Johnna Gemelos?

    Please contact Dr. Gemelos's office at (619) 691-7000 for information regarding telehealth appointment availability or for scheduling assistance.

    Other Internist Near San Diego, CA

    acceptingPatients-iconAccepting patients
    San Diego, CA
    acceptingPatients-iconAccepting patients
    San Diego, CA
    HR

    Hospitalist

    acceptingPatients-iconAccepting patients
    San Diego, CA
    See All Specialists

    Doctors by Category

    Specialists