Summary

Dr. Leonard Horowitz is a family medicine physician who earned his medical degree from Georgetown University School of Medicine and completed his residency at Stony Brook University Medical Center. With nearly four decades of practice experience, he brings extensive knowledge to comprehensive primary care. His training has equipped him to address the full spectrum of health needs for patients and families. Dr. Horowitz speaks English with his patients.

Dr. Horowitz practices at multiple locations throughout Massachusetts, including Danvers, Peabody, Newburyport, Gloucester, and Beverly, with affiliations at Beverly Hospital, Anna Jaques Hospital, Lahey Medical Center Peabody, and Addison Gilbert Hospital. He focuses on treating conditions such as obesity and weight management, as well as complex trauma-related stress disorders. His practice includes important preventive services like autism screening for children, developmental assessments, and breast cancer screening for women. Patients have given Dr. Horowitz an average rating of 4.4 out of 5 stars.
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Overview based on verified provider data

Quick Facts

  • 4.4
  • 39 years of experience
  • speaks English
  • Stony Brook University Medical Center
  • 8 written reviews
  • 1 specialty
  • 9 areas of expertise
  • 1 board certification
  • 4 hospital affiliations
  • 5 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Leonard Marc Horowitz has 5 locations

Leonard M Horowitz Medical Group

7 Federal St Ste 11Danvers, MA 01923
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Lahey Medical Center Peabody

1 Essex Center DrPeabody, MA 01960

Anna Jaques Hospital

25 Highland AveNewburyport, MA 01950

Addison Gilbert Hospital

298 Washington StGloucester, MA 01930

Beverly Hospital

85 Herrick StBeverly, MA 01915

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Dr. Leonard Marc Horowitz, MDKaley O'Neill, NPDr. Joan Elizabeth Goforth Baumer, MDDr. Nancyver Lafleur-Omeler
Family MedicineFamily MedicineFamily MedicineFamily Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
4.4 
3.7 
39 Years of Experience 2 Years of Experience 49 Years of Experience 3 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option Virtual Visit Available
Speaks English Speaks English Speaks English, Spanish Speaks English, French, Haitian Creole
Danvers , MAChelmsford , MADanvers , MALeominster , MA
Med School: Georgetown University School Of Medicine Med School: University Of California Davis School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Leonard Marc Horowitz

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Leonard Marc Horowitz has the following specialty

Specialty Expertise

Dr. Leonard Marc Horowitz has the following 9 areas of expertise

  • Adolescent Medicine
  • Check-up
  • Contraception
  • Family Planning
  • Holistic Health
  • Homeopathy
  • Immunization
  • Influenza
  • Weight Loss

Certifications, License, & Education

39 Years Experience

Dr. Leonard Marc Horowitz holds an expired medical license in the state of Massachusetts.

Medical License

Medical Doctor with an expired medical license in the state of Massachusetts that expired in 2026.

Education & Training

Residency

Completed their residency at Stony Brook University Medical Center.

Medical School

Graduated from Georgetown University School Of Medicine in 1987.

NPI Number

Dr. Horowitz's NPI number is 1649265844.

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Frequently Asked Questions

Which hospitals is Dr. Leonard Horowitz affiliated with?
Dr. Leonard Horowitz is affiliated with Beverly Hospital, Anna Jaques Hospital, Lahey Medical Center Peabody, and Addison Gilbert Hospital.
Does Dr. Leonard Horowitz accept my insurance?
You can see the insurance plans that Dr. Leonard Horowitz accepts on their Vitals profile.
How can I make an appointment with Dr. Leonard Horowitz?
You can find contact information for Dr. Leonard Horowitz here on Vitals.
Is Dr. Leonard Horowitz accepting new patients?
Dr. Leonard Horowitz has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Leonard Horowitz accept virtual/telehealth appointments?
Dr. Leonard Horowitz has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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