Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Castro, Endocrinologist in Rochester, MN?
Dr. Maria Castro, MD is an Endocrinologist, who primarily practices in Rochester, MN. She is board certified. Dr. Castro graduated from Central Medical College and completed her residency at Mayo Grad Sch Med/Mayo Fndn, Endocrinology, Diabetes & Metabolism; Albert Einstein Med Ctr, Internal Medicine. Dr. Castro is fluent in English, French, and Spanish, and is currently seeing new patients. Dr. Castro’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Castro’s office at (507) 284-2511.
What are Areas of Expertise for Dr. Castro?
Dr. Maria Castro, MD is a highly-rated, board-certified Endocrinologist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Castro empowers patients to confidently navigate their health journey, specializing in Cholesterol/Lipid Disorders, Diabetes, Thyroid Disorders, and comprehensive wellness support. Serving the Rochester, MN community, Dr. Castro is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Castro go to medical school and complete their residency?
Residency: Mayo Grad Sch Med/Mayo Fndn, Endocrinology, Diabetes & Metabolism; Albert Einstein Med Ctr, Internal Medicine
Medical School: University Central De Venezuela- Esc De Med "luis Razetti"- Caracas | Central Medical College
Is Dr. Castro board certified as an Endocrinologist?
Yes, Dr. Maria Castro, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Castro speak?
Dr. Castro and their clinical team can communicate with patients in the following languages:
English
French
Spanish
What conditions does an Endocrinologist like Dr. Castro typically treat?
As an Endocrinologist, Dr. Castro 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. Castro. 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. Learn more about our claims-based healthcare methodology.
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:
- Thyroid Cancer
- Thyroid Carcinoma
- Malignant Thyroid Nodule
- Thyroid Gland Cancer
ICD-10 Codes:
- C73: Malignant neoplasm of thyroid gland
Also known as:
- Nontoxic Multinodular Goiter
- Thyroid Disease
- Multinodular Goiter
- Lumpy Enlarged Thyroid
ICD-10 Codes:
- E042: Nontoxic multinodular goiter
Also known as:
- Graves' Disease
- Hyperthyroidism
- Graves' disease
- Graves Disease
- Hyperthyroidism with Goiter
- Toxic Diffuse Goiter
- Overactive Thyroid with Enlarged Gland
ICD-10 Codes:
- E0500: Thyrotoxicosis with diffuse goiter without thyrotoxic crisis or storm
Also known as:
- Hypothyroidism
- Congenital hypothyroidism
- Hypothyroidism (Underactive Thyroid)
- Underactive Thyroid
- Low Thyroid Function
ICD-10 Codes:
- E039: Hypothyroidism, unspecified
What procedures does an Endocrinologist like Dr. Castro typically perform?
As an Endocrinologist, Dr. Castro performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Castro. 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. Learn more about our claims-based healthcare methodology.
Also known as:
- Ultrasound-Guided Fine Needle Biopsy
- Ultrasound-Guided Fine Needle Aspiration Biopsy
- Biopsy
- Ultrasound
- FNA Biopsy with Ultrasound
- Image-Guided Biopsy
- Fine Needle Aspiration
- First Lesion Biopsy
- Needle Biopsy with Ultrasound
CPT Codes:
- 10005: Fine needle aspiration biopsy, including ultrasound guidance; first lesion
- 10006: Fine needle aspiration biopsy, including ultrasound guidance; each additional lesion (List separately in addition to code for primary procedure)
Does Dr. Castro accept my insurance?
Dr. Castro accepts most major insurance plans. Important: Please call our office at (507) 284-2511 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Castro accept in Rochester, MN?
Dr. Castro in Rochester, MN 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 Cross Blue Shield of Michigan
CVS Health (formerly Aetna)
Federal government of the United States
Humana
Medica Group
Medicare
Mutual of Omaha
UnitedHealth Group
Wellmark Blue Cross Blue Shield
View All Insurances
Where is Dr. Castro's office located?
What is Dr. Castro's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Castro's National Provider Identifier (NPI) number is 1598741589.
What common questions do patients ask about Dr. Castro?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Castro
What is Dr. Maria Castro's specialty?
Dr. Castro is a Endocrinologist near Rochester, MN.
What does an Endocrinologist do?
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.
Is this Dr. Maria Castro affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Castro is affiliated with Mayo Clinic 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
When to see an Endocrinologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see an Endocrinologist. Explore 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 Maria Castro accepting new patients in Rochester, MN?
Yes, Dr. Maria Castro is accepting new patients at this time.
Does Dr. Maria Castro offer online booking?
Please contact Dr. Castro's office at (507) 284-2511 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Maria Castro?
Please contact Dr. Castro's office at (507) 284-2511 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Maria Castro have?
Dr. Maria Castro is certified by the American Board of Internal Medicine.
Other Endocrinologist Near Rochester, MN
SP
Endocrinologist
Dr. Sujaytha Paknikar, MD is an Endocrinologist, who primarily practices in Rochester, MN.
Rochester, MN
Endocrinologist
Dr. Sundeep Khosla, MD is an Endocrinologist, who primarily practices in Rochester, MN. He has been practicing for over 37 years and is board certified.
Rochester, MN

Endocrinologist
Dr. Adrian Vella, MD is an Endocrinologist, who primarily practices in Rochester, MN. He has been practicing for over 26 years and is board certified.
Rochester, MN