Summary

Dr. Stephen Diamantoni is a family medicine physician who also specializes in geriatric medicine, bringing comprehensive care to patients across all age groups with particular expertise in caring for older adults. He earned his medical degree from Hahnemann University School of Medicine and completed his residency training at Lancaster General Hospital. With 44 years of experience in practice, Dr. Diamantoni has developed extensive knowledge in managing both routine family health needs and the complex medical conditions that often affect seniors. He is fluent in Spanish and French, allowing him to serve diverse communities in Lancaster.

Dr. Diamantoni practices at multiple locations throughout Lancaster, Pennsylvania, including Penn State Health Lancaster Medical Center. His clinical focus includes managing type 2 diabetes in both adults and younger patients, as well as treating high blood pressure. He performs routine diagnostic procedures such as complete blood counts and lipid panels to monitor patient health. Patients have given Dr. Diamantoni an average rating of 3.6 on Vitals, reflecting his decades of service to the Lancaster community.
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AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 3.6
  • 44 years of experience
  • 58 insurance plans accepted
  • speaks Spanish, French
  • Lancaster General Hospital
  • 6 written reviews
  • 2 specialties
  • 9 areas of expertise
  • 2 board certifications
  • 4 office locations
  • Male

Office Locations

Dr. Stephen Gust Diamantoni has 4 locations

Stephen G Diamantoni Md And Associates

440 W Chestnut StLancaster, PA 17603
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

Stephen G Diamantoni Md And Associates

2112 Harrisburg Pike Ste 3Lancaster, PA 17601
Mon8:00 am - 8:00 pm
Tue8:00 am - 8:00 pm
Wed8:00 am - 8:00 pm
Thu8:00 am - 8:00 pm
Fri8:00 am - 8:00 pm
Sat8:00 am - 12:00 pm
SunClosed

Stephen G Diamantoni Md And Associates

734 N Franklin StLancaster, PA 17602
Mon7:30 am - 10:30 pm
Tue7:30 am - 10:30 pm
Wed7:30 am - 10:30 pm
Thu7:30 am - 10:00 pm
Fri7:30 am - 5:00 pm
SatClosed
SunClosed

Penn State Health Lancaster Medical Center

2160 State RdLancaster, PA 17601

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Dr. Stephen Gust Diamantoni, MDDr. Shakeilla Smithbey, MDDr. Parth BhavsarNicole Baldwin, APRN, FNP-BC
Family MedicineFamily MedicineFamily MedicineFamily Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.6 
3.7 
44 Years of Experience 15 Years of Experience 12 Years of Experience 8 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks Spanish, French Speaks English Speaks English, Hindi, Gujarati, Urdu Speaks English
Lancaster , PAHouston , TXLawrenceville , GAOrlando , FL
Med School: Hahnemann University School Of Medicine Med School: Howard University College Of Medicine Med School: Smt N H L Municipal Medical College
Current Profile
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Insurance Plans Accepted by Dr. Stephen Gust Diamantoni

  • Accepts Medicare
  • Accepts Medicaid
  • AARP
  • Aetna
  • Aetna - Medicare
  • Aetna - Medicare (Advantage HMO)
  • Ambetter
  • AmeriHealth
  • AmeriHealth - HMO
  • AmeriHealth - Medicaid (Managed)
  • AmeriHealth - Medicare (Advantage HMO)
  • AmeriHealth Caritas
  • AmeriHealth Caritas - Medicaid (Managed)
  • APWU
  • Blue Cross Blue Shield
  • Blue Cross of Northeastern Pennsylvania
  • Capital Blue Cross
  • CareFirst Blue Cross Blue Shield
  • CareFirst Blue Cross Blue Shield - PPO
  • CareSource
  • CHAMPVA
  • CHAMPVA - HMO
  • Cigna
  • Cigna-HealthSpring
  • Family Health Network
  • First Health (Coventry Health Care) - Medicaid (Managed)
  • Gateway Health
  • Gateway Health - Medicaid (Managed)
  • Gateway Health - Medicare
  • Gateway Health - Medicare (Advantage HMO)
  • Geisinger Health Plan
  • Geisinger Health Plan - HMO
  • Geisinger Health Plan - Medicare
  • HealthPartners
  • Highmark Blue Shield
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana
  • Independence Blue Cross
  • Keystone First
  • Keystone First - Medicaid (Managed)
  • MagnaCare
  • Medicaid
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Meritain Health
  • National Vision Administrators
  • Priority Health
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicaid (Managed)
  • UnitedHealthcare - Medicare
  • UPMC Health Plan
  • UPMC Health Plan - HMO
  • UPMC Health Plan - Medicaid
  • UPMC Health Plan - Medicare
  • Wellcare

Medical Specialties

Dr. Stephen Gust Diamantoni has the following 2 specialties

Specialty Expertise

Dr. Stephen Gust Diamantoni has the following 9 areas of expertise

  • Alzheimer's Disease
  • Check-up
  • Contraception
  • Diabetes
  • Family Planning
  • Geriatric Medicine
  • Immunization
  • Influenza
  • Weight Loss

Certifications, License, & Education

44 Years Experience

MEDICAL LICENSE

Medical Doctor, Pennsylvania, 2026, Active

EDUCATION & TRAINING

Residency

Lancaster General Hospital

Medical School

Hahnemann University School Of MedicineGraduated in 1982

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Frequently Asked Questions

What languages does Dr. Stephen Diamantoni speak?
Dr. Stephen Diamantoni speaks Spanish and French.
How can I make an appointment with Dr. Stephen Diamantoni?
You can find contact information for Dr. Stephen Diamantoni here on Vitals.
Does Dr. Stephen Diamantoni accept virtual/telehealth appointments?
Dr. Stephen Diamantoni has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. Stephen Diamantoni's office located?
Dr. Stephen Diamantoni's office is located at 440 W Chestnut St, Lancaster, PA, 17603.
Does Dr. Stephen Diamantoni accept my insurance?
You can see the insurance plans that Dr. Stephen Diamantoni accepts on their Vitals profile.

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