Dr. Peter Lastowiecki, MD

Dr. Peter Lastowiecki, MD

Endocrinology, Diabetes & Metabolism  ·  
Male  ·  
Age 57
Dr. Peter Lastowiecki, MD is an endocrinology, diabetes & metabolism specialist in Schaumburg, IL. He graduated from Warsaw Med School and specializes in endocrinology, diabetes & metabolism and internal medicine.

1439 W Schaumburg Rd

Schaumburg, IL 60194

Contact Information

(847) 895-0440

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Coventry Health Care
  • First Health (Coventry Health Care)
  • MultiPlan
  • Priority Health

*Please verify this information when scheduling an appointment.

Learn about Dr. Lastowiecki

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. Lastowiecki performs your care needs compared to other doctors.

Diabetic Ketoacidosis
very high
more than 99% of peers
Diabetes With Renal Manifestations
very high
more than 99% of peers
Diabetes Type 2
very high
more than 99% of peers

Dr. Lastowiecki'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.

2  Specialties

  • Endocrinology, Diabetes & Metabolism
  • Internal Medicine

1  Board Certifications

  • Diabetes, Metabolism & Endocrinology
    Accredited by: American Board of Internal Medicine*

50  Conditions Treated

Read Less

1  Procedures

  • Diabetes Counseling

Background Check

0 Malpractice Claims

No malpractice history found for Illinois.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

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


  • Warsaw Med School
    Medical School | Graduated
  • Lutheran Hospital Lacrosse
    Internship Hospital | Completed
  • Lutheran Hospital Lacrosse
    Residency Hospital | Completed
  • Northwestern Center Feinberg School Of Medicine
    Fellowship Hospital | Completed

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Lastowiecki has no media or publications listed.

Languages Spoken

  • English
  • Polish
  • Spanish

Memberships & Professional Affiliations

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

Dr. Lastowiecki's Reviews

Likelihood of recommending Dr. Lastowiecki to family and friends
20 total reviews (4 have comments)

Likelihood to Recommend (20)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Lastowiecki's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    16 to 30 minutes

Patient Comments (4)

Here's a Dr that judges you before he knows the whole story! I have a very complicated case of being dependent on steroids after needing them for a major medical issue. While trying to wean, I get severe/debilitating pain that wakes me from deep sleep. Dr L took note that I'm on an...more
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I had a great experience with Dr. Lastowiecki. Both the doctor and his staff were very friendly. Dr. Lastowiecki spent a lot of time with me at each of the appts. Dr. Lastowiecki gave my two options that were available to me explaining the pros/cons of each and his recommendation. When I went...more
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First off he is not a friendly person at all. Which is fine if he was a good doctor, not really. Tried to get me back on pills that had no effect on me, then got mad when I said I wasn't taking them again. Argues bc I wanted insulin in a pen, BUT HE IS MORE CONCERNED WITH KEEPNG COSTS DOWN FOR...more
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2 months to get appointment. Dr. spent 30 minutes with me which was good however never followed up on blood work results. They were made available on the patient portal but with no recommendations for next steps based upon abnormal results. Left messages 3 times on portal asking for guidance....more
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