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Dr. Gemma Jean Jamena, MD

Fremont, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Jamena, Family Medicine Specialist in Fremont, CA?

    Dr. Gemma Jean Jamena, MD is a Family Medicine Specialist, who primarily practices in Fremont, CA. Dr. Jamena is fluent in English, Chinese, Panjabi, Punjabi, Spanish, and Tagalog, and is currently seeing new patients. Dr. Jamena’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. Jamena’s office at (510) 770-8040.

    What languages does Dr. Jamena speak?

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

    • Chinese

    • English

    • Panjabi

    • Punjabi

    • Spanish

    • Tagalog

    What conditions does Dr. Jamena treat?

    As a Family Medicine Specialist, Dr. Jamena 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. Jamena. 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:

    • Type 2 Diabetes
    • Type 2 Diabetes with High Blood Sugar
    • Type 2 Diabetes with Diabetic Foot Ulcer
    • Diabetes Type 2
    • Type 2 diabetes
    • Hyperglycemia
    • Diabetic Foot
    • Diabetes Mellitus Type 2
    • Adult-Onset Diabetes
    • Non-Insulin Dependent Diabetes
    • Diabetic Hyperglycemia
    • High Blood Glucose
    • High Sugar Levels
    • Diabetic Foot Wound
    • Foot Sore from Diabetes
    • Diabetic Ulcer

    ICD-10 Codes:

    • E119: Type 2 diabetes mellitus without complications
    • E1165: Type 2 diabetes mellitus with hyperglycemia
    • E11621: Type 2 diabetes mellitus with foot ulcer

    Also known as:

    • Nutrition Counseling
    • Nutrition
    • Dietary advice
    • Nutritional guidance
    • Healthy eating counseling

    ICD-10 Codes:

    • Z713: Dietary counseling and surveillance

    Also known as:

    • High Blood Pressure
    • Hypertension
    • Primary Hypertension
    • Essential Hypertension

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    Also known as:

    • Immunization Visit
    • Vaccines
    • Vaccination appointment
    • Shot visit
    • Immunization encounter

    ICD-10 Codes:

    • Z23: Encounter for immunization

    Also known as:

    • High Cholesterol
    • Cholesterol
    • Triglycerides
    • Hyperlipidemia
    • High lipids
    • Dyslipidemia
    • Hypercholesterolemia
    • High blood cholesterol
    • Elevated cholesterol

    ICD-10 Codes:

    • E785: Hyperlipidemia, unspecified
    • E7800: Pure hypercholesterolemia, unspecified

    Also known as:

    • Understanding Test Results
    • Test results explanation
    • Medical findings review
    • Diagnostic interpretation

    ICD-10 Codes:

    • Z712: Person consulting for explanation of examination or test findings

    Also known as:

    • Pressure Sore
    • Pressure Sores
    • Bed Sore
    • Decubitus Ulcer
    • Pressure Ulcer
    • Bedsores
    • Decubitus Ulcers
    • Pressure Ulcers

    ICD-10 Codes:

    • L89154: Pressure ulcer of sacral region, stage 4
    • L89153: Pressure ulcer of sacral region, stage 3

    Also known as:

    • Repeat Prescription Visit
    • Prescription Refill Appointment
    • Medication Renewal Visit
    • Follow-up for Prescription

    ICD-10 Codes:

    • Z760: Encounter for issue of repeat prescription

    Also known as:

    • Prediabetes
    • Insulin Resistance & Prediabetes
    • Borderline diabetes
    • Insulin resistance
    • High blood sugar (not yet diabetes)

    ICD-10 Codes:

    • R7303: Prediabetes

    Also known as:

    • Wound Dressing Change or Removal
    • Wounds and Injuries
    • Non-surgical dressing care
    • Wound care visit
    • Dressing replacement

    ICD-10 Codes:

    • Z4800: Encounter for change or removal of nonsurgical wound dressing

    Also known as:

    • Routine Adult Health Checkup
    • Health Checkup
    • Adult physical exam
    • Annual wellness visit for adults
    • General adult medical exam

    ICD-10 Codes:

    • Z0000: Encounter for general adult medical examination without abnormal findings

    Also known as:

    • Other Chronic Pain Condition
    • Chronic Pain
    • Various chronic pain
    • Unspecified long-term pain
    • Persistent pain disorders

    ICD-10 Codes:

    • G8929: Other chronic pain

    Also known as:

    • Epilepsy
    • Seizure disorder
    • Convulsive disorder
    • Falling sickness

    ICD-10 Codes:

    • G40909: Epilepsy, unspecified, not intractable, without status epilepticus

    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:

    • Obesity
    • Take Charge of Your Health: A Guide for Teenagers
    • Excess Weight
    • Being Overweight
    • High BMI

    ICD-10 Codes:

    • E669: Obesity, unspecified

    Which procedures does Dr. Jamena perform as a Family Medicine Specialist?

    As a Family Medicine Specialist, procedures performed by Dr. Gemma Jean Jamena may include:

    For detailed information, please contact Dr. Jamena's office.

    Does Dr. Jamena accept my insurance?

    Dr. Jamena accepts most major insurance plans. Important: Please call our office at (510) 770-8040 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Jamena accept in Fremont, CA?

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

    Top Insurances

    • Alameda Alliance

    • All Other Third Party

    • Crown Cork and Seal Company

    • CVS Health (formerly Aetna)

    • Hill Physicians Medical Group

    • Medicare

    • OptumRx

    • State of Tennessee

    • Sutter Health

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Jamena's office located?

    Dr. Gemma Jean Jamena's Primary Practice

    39500 Liberty St

    Fremont, CA 94538

    (510) 770-8040

    Get Directions

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

    Dr. Jamena's National Provider Identifier (NPI) number is 1962761924.

    What common questions do patients ask about Dr. Jamena?

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

    What is Dr. Gemma Jean Jamena's specialty?

    Dr. Jamena is a Family Medicine Specialist near Fremont, CA. Family Medicine is a medical specialty focused on comprehensive healthcare for individuals and families. It is a broad field that integrates biological, clinical, and behavioral sciences. The scope of family medicine covers all ages, genders, organ systems, and disease conditions, offering a holistic approach to patient care. Contact Dr. Jamena to book an appointment today.

    Is this Dr. Gemma Jean Jamena affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Jamena is affiliated with Alta Bates Summit Medical Center - Summit Campus, Stanford Health Care - Stanford Hospital, Eden Medical Center, Washington Hospital Healthcare System, UCSF Medical Center at Parnassus which are a Castle Connolly Top Hospitals. 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 Family Medicine Specialist?

    Explore Family 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 Gemma Jean Jamena accepting new patients in Fremont, CA?

    Yes, Dr. Gemma Jean Jamena is accepting new patients at this time.

    Does Dr. Gemma Jean Jamena offer online booking?

    Please contact Dr. Jamena's office at (510) 770-8040 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Gemma Jean Jamena?

    Please contact Dr. Jamena's office at (510) 770-8040 for information regarding telehealth appointment availability or for scheduling assistance.

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