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Dr. Diana Maas, MD

Endocrinology, Diabetes & Metabolism*
4.3 (9)
Map Pin Small Milwaukee, WI
Accepting new patients
39 years of experience

Offers telehealth

Overview of Dr. Diana Maas, MD

Dr. Diana Maas, MD is an Endocrinology, Diabetes & Metabolism Specialist in Milwaukee, WI. They specialize in Endocrinology, Diabetes & Metabolism, has 39 years of experience, and is board certified in Internal Medicine. They graduated from Medical College of Wisconsin and is affiliated with Froedtert Memorial Lutheran Hospital, Froedtert Kenosha Hospital and Froedtert West Bend Hospital. Patients rated Dr. Maas an average 4.3 star rating.

Dr. Maas works at Practice in Milwaukee, WI. They frequently treat conditions like Endocrine Gland Cancer, Hypothalamus Cancer and Adrenal Gland Diseases along with other conditions at varying frequencies. They are accepting new patients and accept Aetna, Anthem Blue Cross Blue Shield and Blue Cross Blue Shield as well as other major insurance plans. Please call ahead to schedule an appointment and to confirm all accepted insurance plans.

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Dr. Maas' Office Locations

  1. 1
    Froedtert and the Medical College of Wisconsin Froedtert Hospital
    9200 W Wisconsin Ave, Milwaukee, WI 53226 Icon Directions Right Arrow Directions Phone Icon (414) 805-3666
  2. 2
    Froedtert Pharmacy Specialty Clinics Froedtert Hospital
    8850 William Coffey Dr, Milwaukee, WI 53226 Icon Directions Right Arrow Directions Phone Icon (414) 805-6550
  3. 3
    Office
    8750 William Coffey Dr, Milwaukee, WI 53226 Icon Directions Right Arrow Directions Phone Icon (414) 805-6550

Hospital Affiliations
Admitting Hospitals

Admitting hospitals are where the provider is credentialed to see patients, perform procedures, and send patients for continuous care.

  • Froedtert Memorial Lutheran Hospital
  • Froedtert Kenosha Hospital
  • Froedtert West Bend Hospital

Experience & Treatment Frequency

NEW FEATURE

What is treatment frequency?

Our treatment frequency feature helps you understand howoften a provider performs or treats a specificprocedure/condition compared to other doctors. Providersrank in one of four frequency categories:

Very HighFrequency
HighFrequency
NormalFrequency
May Perform

Specific procedures/conditions that don’t haveenough data are indicated with “May Perform”. We encourageyou to contact the provider with questions about theirexperience.

Search for conditions or procedures.
Endocrine Gland Cancer
Hypothalamus Cancer
Adrenal Gland Diseases
Endocrine Gland Cancer
Hypothalamus Cancer
Adrenal Gland Diseases

Treatment frequency



Many providers have expertise treating multiple conditions or procedures. FindCare uses a variety of data sources to determine which conditions or procedures a provider treats and their level of experience.
Endocrine Gland Cancer
Hypothalamus Cancer
Adrenal Gland Diseases
Adrenal Insufficiency
Autoimmune Thyroid Diseases
Autoimmune Thyroiditis
Benign Pituitary Gland Tumor
Congenital Adrenal Hyperplasia (CAH)
Diabetes Insipidus
Growth Hormone Deficiency
Hashimoto's Disease
Hyperthyroidism
Hypoparathyroidism
Hypopituitarism
Neuroendocrine Tumors
Pituitary Gland Cancer
Pituitary Tumor
Thyroiditis
Thyrotoxicosis
Goiter
  • View other providers who treat Goiter
Hypothyroidism
Osteopenia
Thyroid Cancer
Vitamin D Deficiency
Vitamin_Deficiency
Thyroid Hormone Replacement
Calcium Metabolism Disorders
Craniopharyngioma
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diabetic Polyneuropathy
Dyslipidemia
Graves' Disease
Hypercalcemia
Hyperlipidemia
Hyperparathyroidism
Hyperprolactinemia
Hyposmolality and Hyponatremia
Leg and Foot Ulcers
Lipid Disorders
Malaise and Fatigue
Mineral Metabolism Disorders
Obesity
  • View other providers who treat Obesity
Osteoporosis
Parathyroid (Gland) Disease
Primary Adrenocortical Insufficiency
Primary Hyperparathyroidism
Proteinuria
Thyroid Cyst
Thyroid Nodule
Abnormal Thyroid
Acromegaly and Gigantism
Adrenal Gland Cancer
Adrenal Incidentaloma
Chronic Thyroiditis
Congenital Hypothyroidism
Congenital Hypothyroidism without Goiter
Conn's Syndrome
Cushing's Syndrome
Diabetic Coma
Diabetic Ketoacidosis
Female Infertility
Gynecomastia
Hemochromatosis
Hyperaldosteronism
Hyperandrogenization Syndrome
Hyperkalemia
Hypoglycemia
Hypogonadism
Hypokalemia
Hypopituitarism Following Procedure
Iodine Deficiency
Iron Metabolism Disorders
Lipedema
  • View other providers who treat Lipedema
Lipoprotein Disorders
Magnesium Metabolism Disorders
Malignant Pituitary Gland Tumor
Menstrual Disorders
Metabolic Syndrome
Morbid Obesity
Multiple Endocrine Neoplasia
Multiple Endocrine Neoplasia, Type 1 (MEN 1)
Nephrogenic Diabetes Insipidus
Non-Alcoholic Fatty Liver Disease
Osteomalacia
Overweight
Parathyroid (Gland) Tumor: Other than Malignant
Parathyroid Cancer
Peripheral Edema
Pheochromocytoma
Phosphorus Metabolism Disorders
Polycystic Ovarian Syndrome
Renal Hyperparathyroidism
Rickets
  • View other providers who treat Rickets
Secondary Diabetes Mellitus
Secondary Hyperparathyroidism
Secondary Hypertension
Subacute Thyroiditis
Symptomatic Menopause
Testicular Dysfunction
Thiamin Deficiency
Thyroid Goiter
Thyrotoxicosis Factitia
Turner Syndrome
Vitamin B12 Anemia
ACTH (Cosyntropin) Stimulation Test
Cholesterol Screening
Dexamethasone Suppression Test
Diabetes Counseling
Diabetes Screening
Diabetic Evaluation
Dynamic Endocrine Function Test
Oral Glucose Tolerance Test
Testosterone Replacement Therapy
Thyroid Nodule Evaluation
Thyroid Scan
Thyroid Screening
Ultrasound, Thyroid
VAP Lipid Testing
Water Deprivation Test
Check your insurance
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    • Aetna
    • Anthem Blue Cross Blue Shield
    • Blue Cross Blue Shield
    • Cigna
    • First Health
    • Humana
    • Network Health
    • UnitedHealthCare
    • Wellmark Blue Cross and Blue Shield

    * Please verify this information when scheduling an appointment.

    Ratings & Reviews
    Reviews are displayed in date order and collected from patients who have agreed to reporting accurate and fair reviews. Providers with no reviews may have a new FindCare profile, or no submitted reviews on FindCare yet.

    Learn more about how FindCare's ratings and reviews work

    4.3
    Average provider rating
    Based on 9 ratings
    Patient Ratings (9)
    5 Star
    (7)
    4 Star
    (0)
    3 Star
    (1)
    2 Star
    (0)
    1 Star
    (1)
    Leave a review

    How was your appointment with Dr. Maas?

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    Dr. Maas' Office & Staff

    • Ease of scheduling urgent appointments
    • Office environment, cleanliness, comfort, etc.
    • Staff friendliness and courteousness
    • Total wait time (waiting & exam rooms)

    Experience with Dr. Maas

    • Level of trust in provider's decisions
    • How well provider explains medical condition(s)
    • How well provider listens and answers questions
    • Hpends appropriate amount of time with patients

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    About Dr. Diana Maas, MD

    Specialties*
    • Endocrinology, Diabetes & Metabolism

    • *Healthline does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
    Specialties*
    Years of Experience
    • 39 years of experience
    Years of Experience
    Years of experience represents how long a provider has been practicing in their field since graduating from medical school. Not all providers will have this information available.
    Languages Spoken
    • English
    Languages Spoken
    NPI Number
    • 1427009273
    NPI Number
    A National Provider Identifier (NPI) is a unique 10-digit identifier issued by the government to healthcare providers.

    Education & Certifications

    Medical Education
    • Medical College of Wisconsin
    Medical Education
    Board Certifications
    • Internal Medicine
    Board Certifications
    What’s a board certification and why is it important that my provider has one?

    A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

    Frequently Asked Questions

    Dr. Diana Maas, MD is accepting new patients on Healthline FindCare. You can check to see if Dr. Maas is offering online scheduling or call the provider’s office for more information.

    Dr. Maas accepts Aetna, Anthem Blue Cross Blue Shield and Blue Cross Blue Shield, and other major insurance plans. Please call ahead to confirm all accepted insurance plans.

    Dr. Maas has indicated that they do offer telehealth services. Please call the provider’s office at for more information.

    Dr. Maas has seen patients for Endocrine Gland Cancer, Hypothalamus Cancer and Adrenal Gland Diseases, and more. You can see other conditions treated by Dr. Maas on their profile. Please call the provider’s office to confirm all visit reasons.

    9 patients have reviewed Dr. Maas. The overall rating for this provider is 4.3. You can read verified reviews and ratings and leave your own review based on your experience with Dr. Maas.

    Whether a person prefers to schedule an appointment online or over the phone with Dr. Maas, there are benefits to both methods. A person calling to schedule an with Dr. Maas appointment can ask questions about the practice, provider availability, conditions treated, procedures performed, and if their insurance carrier is accepted. While online scheduling is quicker, easier, allows one to view a wide range of appointment times, and may provide the ability to sync with a personal calendar.

    Telehealth Options
    This provider has not specified a telehealth appointment method. Would you still like to make an appointment with Dr. Maas, or would you like to choose another provider and have an online appointment right now?
    Find provider online now
    Call now to make an appointment
    (414) 805-3666

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