Highlights
Age Groups Seen
- Adolescent
- Adult
Languages
- English
Gender
FemaleEducation & Board Certifications
Education
- Graduate School: Youngstown State University, 2025
- Undergraduate: Kent State University, 2019
- Undergraduate: Ohio University, 2017
Board Certifications
- Family Nurse Practitioner: American Academy of Nurse Practitioners Certification Board, 2025
Research & Publications
See publications for this provider. (Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)
Industry Relationships
Cleveland Clinic physicians and scientists collaborate with industry to advance medical breakthroughs. These partnerships help commercialize discoveries for public benefit while maintaining scientific integrity. To ensure transparency and minimize potential bias, Cleveland Clinic reviews these relationships and publicly discloses when physicians/scientists receive significant compensation for consulting, serve in fiduciary roles, receive royalties, or hold equity interests related to their work. We manage potential conflicts through approval processes, annual reporting, and targeted management plans.
As of 2025-11-12, Dr. Lamtman has reported no financial relationship with industry that is applicable to this listing.
In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.
Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.
* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.
Insurances Accepted
Ratings & Reviews
4.9 out of 5
50 ratings, 4 reviewsThe Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.
- 5 out of 5 starsReviewed on 3/30/2026
I recently had a visit with Mandy who is a nurse practitioner, and I left feeling genuinely impressed and grateful. It''s rare to find a provider who combines such deep clinical knowledge with such a warm, approachable demeanor. From the moment we started talking, she made me feel completely comfortable, heard, and cared for.She took the time to truly listen, answered every question thoughtfully, and explained things in a way that was both thorough and easy to understand. Her attention to detail and genuine compassion for her patients really stood out. You can tell she takes immense pride in providing thoughtful, personalized care.What made the experience even more special was how naturally she balances professionalism with kindness. She has an incredible ability to make you feel supported and confident in your care. It''s clear she''s exactly where she''s meant to be.I couldn''t recommend her highly enough. If you''re looking for a provider who is knowledgeable, attentive, and truly invested in the well-being of her patients, you''re in excellent hands.
- 5 out of 5 starsReviewed on 3/10/2026
My experience was very good! I liked her a lot she was very nice
- 5 out of 5 starsReviewed on 2/6/2026
She really seemed to advocate for my weight loss program.
- 5 out of 5 starsReviewed on 12/30/2025
I was pleased to meet Mandy Testa, who took a genuine interest in my current status and future directions. She was patient, thorough, and professional.