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Dr. Jonathan Fillmore, MD

Manchester, CT

22 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Fillmore, Endocrinologist in Manchester, CT?

    Dr. Jonathan Fillmore, MD is an Endocrinologist, who primarily practices in Manchester, CT with 2 additional practice locations. He has been practicing for over 22 years and is board certified. Dr. Fillmore completed his residency at Yale New Haven Hosp, Endocrinology, Diabetes & Metabolism. Dr. Fillmore is fluent in English, and is currently seeing new patients. Dr. Fillmore’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Fillmore’s office at (203) 373-7388.

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

    • Residency: Yale New Haven Hosp, Endocrinology, Diabetes & Metabolism

    What languages does Dr. Fillmore speak?

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

    • English

    What conditions does Dr. Fillmore treat?

    As a Endocrinologist, Dr. Fillmore 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. Fillmore. 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 Neuropathy
    • Diabetes Type 2
    • Type 2 diabetes
    • Hyperglycemia
    • Diabetic Nerve Problems
    • Diabetic Neuropathy
    • Diabetic Kidney Problems
    • Diabetes Mellitus Type 2
    • Adult-Onset Diabetes
    • Non-Insulin Dependent Diabetes
    • Diabetic Hyperglycemia
    • High Blood Glucose
    • High Sugar Levels
    • Diabetes nerve issues
    • Diabetic nervous system problems
    • Nerve damage from type 2 diabetes
    • Diabetic Nerve Damage
    • Diabetic Polyneuropathy
    • Peripheral Neuropathy from Diabetes
    • Diabetes Mellitus Nerve Problems
    • Diabetic Kidney Issues
    • Kidney Problems from Type 2 Diabetes
    • Type 2 Diabetes Renal Complications

    ICD-10 Codes:

    • E119: Type 2 diabetes mellitus without complications
    • E1165: Type 2 diabetes mellitus with hyperglycemia
    • E1149: Type 2 diabetes mellitus with other diabetic neurological complication
    • E1142: Type 2 diabetes mellitus with diabetic polyneuropathy
    • E1129: Type 2 diabetes mellitus with other diabetic kidney complication

    Also known as:

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

    ICD-10 Codes:

    • E039: Hypothyroidism, unspecified
    • E890: Postprocedural hypothyroidism

    Also known as:

    • Hyperthyroidism
    • Hyperthyroidism (Overactive Thyroid)
    • Overactive Thyroid
    • Thyrotoxicosis
    • High Thyroid Function

    ICD-10 Codes:

    • E0590: Thyrotoxicosis, unspecified without thyrotoxic crisis or storm

    Also known as:

    • Type 1 Diabetes
    • Type 1 Diabetes with High Blood Sugar
    • Diabetes Type 1
    • Type 1 diabetes
    • Diabetes Tests & Diagnosis
    • Hyperglycemia
    • Juvenile Diabetes
    • Insulin-Dependent Diabetes
    • T1D
    • Diabetic Hyperglycemia
    • High Glucose in Type 1 Diabetes
    • High Blood Sugar Episode

    ICD-10 Codes:

    • E109: Type 1 diabetes mellitus without complications
    • E1065: Type 1 diabetes mellitus with hyperglycemia

    Also known as:

    • Testicular Hypofunction
    • Testicular Disorder
    • Underactive Testicles
    • Low Testicular Function
    • Hypogonadism

    ICD-10 Codes:

    • E291: Testicular hypofunction

    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:

    • Vitamin D Deficiency
    • Low Vitamin D Levels
    • Lack of Vitamin D
    • Hypovitaminosis D

    ICD-10 Codes:

    • E559: Vitamin D deficiency, unspecified

    Also known as:

    • High Fasting Blood Sugar
    • Blood Glucose
    • Impaired Fasting Glucose
    • Prediabetes (Fasting)
    • Borderline Diabetes (Fasting)

    ICD-10 Codes:

    • R7301: Impaired fasting glucose

    Also known as:

    • Hyperparathyroidism
    • Parathyroid Disorder
    • Overactive Parathyroid Gland
    • High Parathyroid Hormone
    • PTH Overproduction

    ICD-10 Codes:

    • E213: Hyperparathyroidism, unspecified

    Also known as:

    • Other Specific Abnormal Blood Chemistry Results
    • Blood
    • Specified Blood Chemistry Imbalance
    • Unusual Blood Chemistry Findings
    • Specific Blood Panel Abnormalities

    ICD-10 Codes:

    • R7989: Other specified abnormal findings of blood chemistry

    Also known as:

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

    ICD-10 Codes:

    • E042: Nontoxic multinodular goiter

    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:

    • Adrenal Insufficiency
    • Addison Disease
    • Underactive Adrenal Gland
    • Adrenocortical Hypofunction
    • Adrenal Crisis

    ICD-10 Codes:

    • E2740: Unspecified adrenocortical insufficiency

    Also known as:

    • Underactive Pituitary Gland
    • Pituitary Disorder
    • Combined pituitary hormone deficiency
    • Isolated growth hormone deficiency
    • Hypopituitarism
    • Pituitary Hormone Deficiency
    • Low Pituitary Function

    ICD-10 Codes:

    • E230: Hypopituitarism

    Does Dr. Fillmore accept my insurance?

    Dr. Fillmore accepts most major insurance plans. Important: Please call our office at (203) 373-7388 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Fillmore accept in Manchester, CT?

    Dr. Fillmore in Manchester, CT accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Third Party

    • Centene

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • EmblemHealth

    • Express Scripts

    • Humana

    • Medicaid

    • Medicare

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Fillmore's office located?

    Dr. Jonathan Fillmore's Primary Practice

    18 Haynes St Uppr

    Manchester, CT 06040

    (203) 373-7388

    Get Directions

    Dr. Jonathan Fillmore's Practice 2

    1625 Straits Tpke Ste 200

    Middlebury, CT 06762

    Get Directions

    Dr. Jonathan Fillmore's Practice 3

    5520 Park Ave Ste 306

    Trumbull, CT 06611

    (203) 373-7388

    Get Directions

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

    Dr. Fillmore's National Provider Identifier (NPI) number is 1578592713.

    What common questions do patients ask about Dr. Fillmore?

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

    What is Dr. Jonathan Fillmore's specialty?

    Dr. Fillmore is a Endocrinologist near Manchester, CT. 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. Fillmore to book an appointment today.

    Is this Dr. Jonathan Fillmore affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Fillmore is affiliated with Waterbury Hospital, Saint Mary's Hospital - Waterbury, Ct, Griffin Hospital 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 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 Jonathan Fillmore accepting new patients in Manchester, CT?

    Yes, Dr. Jonathan Fillmore is accepting new patients at this time.

    Does Dr. Jonathan Fillmore offer online booking?

    Please contact Dr. Fillmore's office at (203) 373-7388 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Jonathan Fillmore?

    Please contact Dr. Fillmore's office at (203) 373-7388 for information regarding telehealth appointment availability or for scheduling assistance.

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