Dr. Leonard Zemel, MD

Dr. Leonard Zemel, MD

Endocrinology, Diabetes & Metabolism  ·  
Male  ·  
Age 61
(45)
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Dr. Leonard Zemel, MD is an endocrinology, diabetes & metabolism specialist in Lone Tree, CO and has been practicing for 37 years. He graduated from State University of New York University Medical School (Brooklyn) in 1981 and specializes in endocrinology, diabetes & metabolism.

9695 S Yosemite St Ste 360

Lone Tree, CO 80124

Contact Information

(303) 388-6410

Insurance Accepted

  • Aetna
  • Anthem Blue Cross Blue Shield
  • Cigna
  • First Health (Coventry Health Care)
  • MultiPlan
  • UnitedHealthCare

*Please verify this information when scheduling an appointment.

Background Check

No malpractice claims found for Colorado
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check Dr. Zemel's experience treating your condition or procedure

Dr. Zemel's Top Procedures and Conditions

Treatment Frequency
Obesity
very high
very high

Treatment Frequency

Dr. Zemel treats Obesity more than 100% of his peers

Dr. Zemel treats this condition more than 100% of his peers

Diabetes With Renal Manifestations
very high
very high

Treatment Frequency

Dr. Zemel treats Diabetes With Renal Manifestations more than 100% of his peers

Dr. Zemel treats this condition more than 100% of his peers

Diabetes Type 1
very high
very high

Treatment Frequency

Dr. Zemel treats Diabetes Type 1 more than 99% of his peers

Dr. Zemel treats this condition more than 99% of his peers

Dr. Zemel's conditions and procedures:

Adrenal Gland Diseases
Adrenal Incidentaloma
Adrenal Insufficiency
Autoimmune Diseases
Autoimmune Thyroid Diseases
Benign Tumor
Bone Disorders
Breast Diseases
Calcium Metabolism Disorders
Cancer
Diabetes
Diabetes Counseling
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diabetic Ketoacidosis
Goiter
Graves' Disease
Hashimoto's Disease
Hypercalcemia
Hyperkalemia
Hyperlipidemia
Hyperparathyroidism
Hyperthyroidism
Hypoglycemia
Hypokalemia
Hypoparathyroidism
Hyposmolality and Hyponatremia
Hypothyroidism
Kidney Disease
Lipid Disorders
Malaise and Fatigue
Menstrual Disorders (incl. Dysmenorrhea)
Obesity
Osteopenia
Osteoporosis
Overweight
Parathyroid (Gland) Disease
Polycystic Ovarian Syndrome
Retina Diseases
Symptomatic Menopause
Testicular Dysfunction
Thyroid Cancer
Thyroid Cyst
Thyroid Disease
Thyroiditis
Vitamin D Deficiency

About Me

Biography

Dr. Leonard Zemel, MD is an endocrinology, diabetes & metabolism specialist in Lone Tree, CO and has been practicing for 37 years. He graduated from State University of New York University Medical School (Brooklyn) in 1981 and specializes in endocrinology, diabetes & metabolism.

Specialties

  • Endocrinology, Diabetes & Metabolism

Board Certifications

  • Diabetes, Metabolism & Endocrinology
  • Internal Medicine

Education

  • Montefiore Medical Center CMO LLC
    Fellowship Hospital
  • Montefiore Medical Center
    Residency Hospital
  • Montefiore Med Center
    Internship Hospital
  • 1981
    State University of New York University Medical School (Brooklyn)
    Medical School
    1981

Awards

Dr. Zemel's Reviews

Likelihood to recommend Dr. Zemel

2.6

Based on 45 reviews

5 Stars
37.77777777777778%
(17)
4 Stars
2.2222222222222223%
(1)
3 Stars
0%
(0)
2 Stars
2.2222222222222223%
(1)
1 Star
57.77777777777778%
(26)

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Dr. Zemel?
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Average Wait Time
  • 16 – 30 minutes
Dr. Zemel's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. Leonard Zemel, MD
RecentHighestLowestMost Helpful
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He's very knowledgeable about endocrinology, but he allows his staff to run a real sh*t show. You'll stand there in front of reception and they just ignore you, they just keep talking to each other like your invisible. I waited 45 minutes for my appointment along with 2 other in the waiting room...Read More
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I know that mistakes happen and people are human; however, it was disconcerting that Dr. Zemel confused me for another patient during my appointment and subsequently told me I had thyroid cancer when I didn't. In addition, he shamed me on multiple occasions for going to the Emergency Room when I...Read More
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Unbelievably rude, condescending, just plain mean man. Hard to figure out how he still has patients as he has no bedside manner, speaks over you, insults you... Worst experience I have ever had with a doctor.
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I am an ex-hospital administrator and Dr. Zemel is without a doubt one of the most knowledgeable and personable physicians you will ever meet.
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VERY lengthy wait even though you have a scheduled appointment. IGNORES patient messages for return calls on test results. Front office staff less than cordial. Would NOT recommend.
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Locations

Insurance accepted

Accepted insurance can change. Please double-check when making an appointment.

Aetna
Aetna Test HMO
Choice Plus Test POS II
Anthem Blue Cross Blue Shield
Anthem Blue Cross Blue Shield PPO
Cigna
Cigna HMO
Cigna PPO
LocalPlus
Open Access Plus
First Health (Coventry Health Care)
First Health (Coventry Health Care) Test PPO
MultiPlan
MultiPlan Test PPO
PHCS Network PPO
UnitedHealthCare
United Healthcare

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