Dr. Bonnie Lonze, MD

Dr. Bonnie Lonze, MD

General Surgery  ·  
Dr. Bonnie Lonze, MD is a general surgery specialist in Baltimore, MD and has been practicing for 16 years. She graduated from Johns Hopkins Univ Sch Of Med in 2002 and specializes in general surgery.

1830 E Monument St 333

Baltimore, MD 21287

Contact Information

(410) 955-5080

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Louisiana
  • Blue Cross Blue Shield of Massachusetts
  • Capital District Physician's Health Plan (CDPHP)
  • Cigna
  • Empire Blue Cross Blue Shield
  • First Health (Coventry Health Care)
  • HealthFirst

*Please verify this information when scheduling an appointment.

Learn about Dr. Lonze

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. Lonze performs your care needs compared to other doctors.

Renal Transplant and Nephrectomy
very high
more than 98% of peers
Kidney Surgery
very high
more than 97% of peers
Port Placements or Replacements
more than 54% of peers

Dr. Lonze'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.

1  Specialties

  • General Surgery

0  Board Certifications

Dr. Lonze does not have any board certifications listed.

40  Conditions Treated


Read Less

28  Procedures

  • Abscess or Cyst Drainage or Aspiration
  • Arteriovenous Fistula Repair
  • Bile Duct Procedure
  • Colectomy
  • Colon and Rectal Surgery
  • Dressing and-or Debridement of Wound, Infection, or Burn (incl. Negative Pressure Wound Therapy)
  • Enterostomy (Laparoscopic or Open)
  • Esophageal Surgery
  • Excision of Bile Duct Tumor
  • Excision of Skin Lesion
  • Gallbladder Removal
  • Gallbladder Removal (Cholecystectomy), Laparoscopic
  • Gastroenterology Procedures
  • Heart Surgery
  • Hernia Repair
  • Incision and Removal of Foreign Object
  • Kidney Surgery
  • Laparotomy
  • Liver Transplant
  • Lung Surgery
  • Open Incisional and-or Ventral Hernia Repair
  • Pancreatectomy (incl. Pancreas Transplant and Whipple Procedure)
  • Paracentesis
  • Peripheral Artery Catheterization
  • Port Placements or Replacements
  • Renal Transplant and Nephrectomy
  • Skin Grafts
  • Wound Repair

Background Check

Malpractice Claims not available

Healthgrades does not collect malpractice information for Maryland.

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.


  • Johns Hopkins Univ Sch Of Med
    Medical School | Graduated 2002

Awards & Recognition

Awards & Honors

Dr. Lonze has no awards or honors listed.

Media & Publications

Dr. Lonze has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

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

Dr. Lonze's Reviews

Likelihood of recommending Dr. Lonze to family and friends
5 total reviews (1 has a comment)

Likelihood to Recommend (5)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Lonze'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 (1)

She is just about the best doctor I've met. But a surgeon who's an actual human being? Incredible. Every bedside visit was a minimum of a half hour, frequently more. Every question answered and more. She's great. So good that she will be my point person in New York, as she just moved to NYU...more
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