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Dr. Maruja Diaz Arjonilla, MD

Fullerton, CA

29 Years of Experience

Accepting patients

    Who is Dr. Diaz Arjonilla, Endocrinologist in Fullerton, CA?

    Dr. Maruja Diaz Arjonilla, MD is an Endocrinologist, who primarily practices in Fullerton, CA with 2 additional practice locations. She has been practicing for over 29 years and is board certified by the American Board of Internal Medicine. Dr. Diaz Arjonilla is fluent in English and Spanish, and is currently seeing new patients. Dr. Diaz Arjonilla’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. Diaz Arjonilla’s office at (714) 288-3230.

    Where did Dr. Diaz Arjonilla go to medical school and complete their residency?

    • Medical School: Central University of Venezuela Faculty of Medicine

    Is Dr. Diaz Arjonilla board certified in Endocrinologist?

    Yes, Dr. Maruja Diaz Arjonilla, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Diaz Arjonilla speak?

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

    • English

    • Spanish

    What conditions does Dr. Diaz Arjonilla treat?

    As a Endocrinologist, Dr. Diaz Arjonilla 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. Diaz Arjonilla. 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 with High Blood Sugar
    • Type 2 Diabetes with Chronic Kidney Disease
    • Type 2 Diabetes
    • Type 2 Diabetes with Hypoglycemia
    • Diabetes Type 2
    • Hyperglycemia
    • Type 2 diabetes
    • Diabetic Kidney Problems
    • Diabetes Complicationss
    • Hypoglycemia
    • Diabetic Hyperglycemia
    • High Blood Glucose
    • High Sugar Levels
    • Diabetic Chronic Kidney Disease
    • Long-term Kidney Failure from Type 2 Diabetes
    • Type 2 Diabetes End-Stage Renal Disease
    • Diabetes Mellitus Complications
    • Diabetes Related Health Problems
    • Advanced Diabetes
    • Diabetes Mellitus Type 2
    • Adult-Onset Diabetes
    • Non-Insulin Dependent Diabetes
    • Low blood sugar from diabetes
    • Diabetic low blood sugar
    • Hypoglycemic episode

    ICD-10 Codes:

    • E1165: Type 2 diabetes mellitus with hyperglycemia
    • E1122: Type 2 diabetes mellitus with diabetic chronic kidney disease
    • E1169: Type 2 diabetes mellitus with other specified complication
    • E119: Type 2 diabetes mellitus without complications
    • E11649: Type 2 diabetes mellitus with hypoglycemia without coma

    Also known as:

    • Post-Surgery Hypothyroidism
    • Other Hypothyroidism
    • Hypothyroidism
    • Congenital hypothyroidism
    • Hypothyroidism (Underactive Thyroid)
    • Postoperative Underactive Thyroid
    • Thyroid Failure After Surgery
    • Underactive Thyroid
    • Low Thyroid Function
    • Thyroid Gland Underactivity

    ICD-10 Codes:

    • E890: Postprocedural hypothyroidism
    • E038: Other specified hypothyroidism
    • E039: Hypothyroidism, unspecified

    Also known as:

    • Age-Related Osteoporosis
    • Fractures
    • Osteoporosis
    • Senile Osteoporosis
    • Primary Osteoporosis
    • Bone Thinning from Aging

    ICD-10 Codes:

    • M810: Age-related osteoporosis without current pathological fracture

    Also known as:

    • Nontoxic Multinodular Goiter
    • Thyroid Disease
    • Multinodular Goiter
    • Lumpy Enlarged Thyroid

    ICD-10 Codes:

    • E042: Nontoxic multinodular goiter

    Also known as:

    • Hyperthyroidism
    • Hyperthyroidism with Toxic Multinodular Goiter
    • Hyperthyroidism (Overactive Thyroid)
    • Overactive Thyroid
    • Thyrotoxicosis
    • High Thyroid Function
    • Toxic Multinodular Goiter
    • Overactive Lumpy Thyroid

    ICD-10 Codes:

    • E0590: Thyrotoxicosis, unspecified without thyrotoxic crisis or storm
    • E0520: Thyrotoxicosis with toxic multinodular goiter without thyrotoxic crisis or storm

    Also known as:

    • Hashimoto's Disease
    • Thyroid Disease
    • Hashimoto's disease
    • Autoimmune thyroiditis', 'Chronic lymphocytic thyroiditis', 'Hashimoto's thyroiditis

    ICD-10 Codes:

    • E063: Autoimmune thyroiditis

    Also known as:

    • Single Nontoxic Thyroid Nodule
    • Thyroid Disease
    • Benign Thyroid Nodule
    • Solitary Thyroid Nodule

    ICD-10 Codes:

    • E041: Nontoxic single thyroid nodule

    Also known as:

    • Type 1 Diabetes with High Blood Sugar
    • Diabetes Type 1
    • Hyperglycemia
    • Type 1 diabetes
    • Diabetic Hyperglycemia
    • High Glucose in Type 1 Diabetes
    • High Blood Sugar Episode

    ICD-10 Codes:

    • E1065: Type 1 diabetes mellitus with hyperglycemia

    Also known as:

    • Thyroid Cancer
    • Thyroid Carcinoma
    • Malignant Thyroid Nodule
    • Thyroid Gland Cancer

    ICD-10 Codes:

    • C73: Malignant neoplasm of thyroid gland

    Also known as:

    • Diabetes
    • Diabetes Overview
    • Sugar Diabetes
    • High Blood Sugar
    • Type 2 Diabetes

    ICD-10 Codes:

    • E139: Other specified diabetes mellitus without complications

    Also known as:

    • Benign Pituitary Tumor
    • Benign Tumor
    • Pituitary Disorder
    • Pituitary Tumor Treatment (PDQ)
    • Prolactinoma
    • Non-cancerous growth in pituitary gland
    • Pituitary adenoma

    ICD-10 Codes:

    • D352: Benign neoplasm of pituitary gland

    Also known as:

    • Primary Hyperparathyroidism
    • Parathyroid Disorder
    • Familial isolated hyperparathyroidism
    • Overactive Parathyroid Gland
    • High Parathyroid Hormone
    • PTH Overproduction

    ICD-10 Codes:

    • E210: Primary hyperparathyroidism

    Also known as:

    • Bone Density and Structure Disorder
    • Bone Density
    • Bone Disease
    • Abnormal Bone Density
    • Bone Structure Problem
    • Bone Disorder

    ICD-10 Codes:

    • M8580: Other specified disorders of bone density and structure, unspecified site

    Does Dr. Diaz Arjonilla accept my insurance?

    Dr. Diaz Arjonilla accepts most major insurance plans. Important: Please call our office at (714) 288-3230 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Diaz Arjonilla accept in Fullerton, CA?

    Dr. Diaz Arjonilla in Fullerton, 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

    • CalOptima

    • Centene

    • CVS Health (formerly Aetna)

    • Medicaid

    • Medicare

    • Other Health Care Provider

    • St. Joseph Health System (CA)

    • UnitedHealthcare

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    Where is Dr. Diaz Arjonilla's office located?

    Dr. Maruja Diaz Arjonilla's Primary Practice

    1950 Sunny Crest Dr Ste 2900

    Fullerton, CA 92835

    (714) 288-3230

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    Dr. Maruja Diaz Arjonilla's Practice 2

    1010 W La Veta Ave Ste 200

    Orange, CA 92868

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    Dr. Maruja Diaz Arjonilla's Practice 3

    100 E Valencia Mesa Dr Ste 105

    Fullerton, CA 92835

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

    Dr. Diaz Arjonilla's National Provider Identifier (NPI) number is 1841481074.

    What common questions do patients ask about Dr. Diaz Arjonilla?

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

    What is Dr. Maruja Diaz Arjonilla's specialty?

    Dr. Diaz Arjonilla is a Endocrinologist near Fullerton, CA. An internist specializing in disorders of the endocrine glands, including the thyroid and adrenal glands. This specialist also manages a range of conditions such as diabetes, metabolic and nutritional disorders, obesity, pituitary disorders, and menstrual and sexual health issues. Contact Dr. Diaz Arjonilla to book an appointment today.

    Is this Dr. Maruja Diaz Arjonilla affiliated with a ranked Castle Connolly Top Hospital?

    No, Diaz Arjonilla is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Providence St. Joseph Hospital Orange. Castle Connolly Top Hospitals 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 Endocrinologist?

    Explore Endocrinologist 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 Maruja Diaz Arjonilla accepting new patients in Fullerton, CA?

    Yes, Dr. Maruja Diaz Arjonilla is accepting new patients at this time.

    Does Dr. Maruja Diaz Arjonilla offer online booking?

    Please contact Dr. Diaz Arjonilla's office at (714) 288-3230 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Maruja Diaz Arjonilla?

    Please contact Dr. Diaz Arjonilla's office at (714) 288-3230 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. Maruja Diaz Arjonilla have?

    Dr. Maruja Diaz Arjonilla is certified by the American Board of Internal Medicine.

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