Dr. Jeffrey Unger, MD

Dr. Jeffrey Unger, MD

Endocrinology, Diabetes & Metabolism  ·  
Male  ·  
Age 65
Dr. Jeffrey Unger, MD is an endocrinology, diabetes & metabolism specialist in Rancho Cucamonga, CA and has been practicing for 35 years. He graduated from Northwestern University The Feinberg School Of Medicine in 1980 and specializes in endocrinology, diabetes & metabolism, family medicine, and more.Read his story

9220 Haven Ave Ste 230

Rancho Cucamonga, CA 91730

Contact Information

(909) 484-2105

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of California
  • Cigna
  • Health Net of California
  • MultiPlan

*Please verify this information when scheduling an appointment.

Learn about Dr. Unger

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.

Top Care Areas

See how frequently Dr. Unger performs your care needs compared to other doctors.

Testicular Dysfunction
very high
more than 95% of peers
Diabetes Type 1
very high
more than 93% of peers
Breast Diseases
more than 83% of peers

Dr. Unger's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

Dr. Unger's bio

This content was provided by Dr. Unger "Dr. Unger is a 3rd generation physician. As a board certified family doctor, Dr. Unger sees patients with both acute and chronic disorders. The majority of our practice is devoted to intensive diabetes management and medical management of substance abuse disorders (alcohol, opioids, heroin, and stimulants). Dr. Unger teaches world wide on topics related to migraine and diabetes. "

Care Philosophy

This content was provided by Dr. Unger "Dr. Unger is a concierge physician who is responsible for guiding his patients towards "creating health." Disease prevention is the first step in creating health. Understanding disease genetics and pathways will allow patients to take the steps necessary to minimize risk of developing chronic progressive disease. Those with chronic disease, such as diabetes and migraine can learn to become experts at self-management so that they might better control their lives and destiny."

3  Specialties

  • Endocrinology, Diabetes & Metabolism
  • Addiction Medicine
  • Family Medicine

1  Board Certifications

  • Family Practice
    Accredited by: American Board of Family Medicine*

42  Conditions Treated

Read Less

22  Procedures

  • Audiometry
  • Botox® for Chronic Migraine
  • Chronic Diabetes Management
  • Continuous Glucose Monitoring
  • Drug Testing
  • Drug Treatment
  • Endometrial Biopsy
  • Epidural Injection
  • Fracture Care
  • Group Psychotherapy
  • Hypnosis (Medical Hypnotherapy)
  • Insulin Pump Therapy
  • Joint Injection
  • Mental Status Examination
  • Nerve Blocks
  • Obesity Counseling
  • Opioid Antagonist Therapy
  • Pap Smear
  • Pelvic Exams
  • Physical Examination
  • Skin Surgery
  • Suboxone® Treatment

Background Check

0 Malpractice Claims

No malpractice history found for California.

1 Sanction
  • Providing False Information to Medical Board (9/13/2000)
    Action Taken: Revocation
    Summary: Dr Jeffrey R Unger

    Nature of Complaint:

    The physician mislead, and provided false and inaccurate information to the State Board of Nevada

    Action Taken:

    The Board decided:

    1. NOT to accept the voluntary surrender of medical license by physican
    2. The Board was able to REVOKE physician's license based on their previous findings
    State: Nevada
0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • University Of Iowa
    Undergraduate School | Graduated 1976
  • Northwestern University The Feinberg School Of Medicine
    Medical School | Graduated 1980
  • Kern Med Center
    Internship Hospital | Completed 1981
  • Kern Med Center
    Residency Hospital | Completed 1983

Awards & Recognition

Awards & Honors

Dr. Unger has no awards or honors listed.

Media & Publications

Dr. Unger has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

Dr. Unger does not have any memberships or affiliations listed. If you are Dr. Unger and would like to add memberships or affiliations, please update your profile.

Dr. Unger's Reviews

Likelihood of recommending Dr. Unger to family and friends
26 total reviews (3 have comments)

Likelihood to Recommend (26)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Unger's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    10 to 15 minutes

Patient Comments (3)

Dr.Unger He is the best doctor I have ever seen. He truly cares about his patients. I would recommend him to everyone
Was this helpful? thumbs up icon option0thumbs down icon option0
Flag this
Most passionate physician.
Was this helpful? thumbs up icon option0thumbs down icon option0
Flag this
Dr Unger is the kindest most brilliant Doctor I have ever met. He always has the answer and is there whenever I, or family member may need him. He never rushes my appointments and is very very thourogh. His office and staff are so accommodating and treat everyone with such care. I highly recommend...more
Was this helpful? thumbs up icon option3thumbs down icon option1
Flag this
Image of Dr. Unger
Are you Dr. Unger?
Make it easy for patients to share their feedback. Also manage your personalized profile!

Nearby doctors with similar experience

Endocrinology, Diabetes & Metabolism
Endocrinology, Diabetes & Metabolism
Endocrinology, Diabetes & Metabolism
Endocrinology, Diabetes & Metabolism
Endocrinology, Diabetes & Metabolism
Endocrinology, Diabetes & Metabolism
Endocrinology, Diabetes & Metabolism
Endocrinology, Diabetes & Metabolism