Summary

Dr. John Marcelis is an internal medicine physician who specializes in geriatric medicine, bringing 39 years of experience to his practice. He earned his medical degree from Lewis Katz School of Medicine at Temple University and completed his residency at Temple University Health System. Dr. Marcelis is fluent in English.

Dr. Marcelis practices at Jefferson Abington Hospital and sees patients at Erickson Health Medical Group in Warminster, Pennsylvania. He treats conditions such as chronic kidney disease and high cholesterol in children and teens. His practice includes preventive care services like flu vaccinations and COVID-19 booster shots, along with general blood testing.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 39 years of experience
  • 21 insurance plans accepted
  • speaks English
  • Temple University Health System
  • 2 specialties
  • 11 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 1 office location
  • Male

Office Location

Erickson Health Medical Group

10000 Anns Choice WayWarminster, PA 18974
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

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Dr. John Francis Marcelis, MDDr. Khanh Phung, DODr. Gelsey Rellosa, MDDr. Courtney R. Lee, MD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients
4.5 
39 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English Speaks English
Warminster , PAPhiladelphia , PAPhiladelphia , PAWyncote , PA
Med School: Lewis Katz School Of Medicine At Temple University Med School: West Virginia School of Osteopathic Medicine
Current Profile
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Insurance Plans Accepted by Dr. John Francis Marcelis

  • Accepts Medicaid
  • AARP
  • Aetna
  • Aetna - Medicare
  • Aetna - PPO
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield - Federal Employees Program
  • CHAMPVA
  • Cigna
  • Cigna - HMO
  • Erickson Advantage
  • Humana
  • Humana - Medicare
  • Humana - Medicare (Advantage HMO)
  • Independence Blue Cross
  • Keystone First
  • Medicare
  • Medicare - Medicare
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - Medicare
  • UnitedHealthcare - PPO

Medical Specialties

Dr. John Francis Marcelis has the following 2 specialties

Specialty Expertise

Dr. John Francis Marcelis has the following 11 areas of expertise

  • Alzheimer's Disease
  • Cognitive Issues/Testing
  • Confusion
  • Dementia
  • Dementia Testing
  • EOL Care
  • Geriatric Medicine
  • Osteopenia
  • Osteoporosis
  • Senility
  • Urinary Incontinence

Certifications, License, & Education

39 Years Experience

Dr. John Francis Marcelis holds an active medical license in the state of Pennsylvania.

Medical License

Medical Doctor with an active medical license in the state of Pennsylvania that expires in 2026.

Education & Training

Residency

Completed their residency at Temple University Health System.

Medical School

Graduated from Lewis Katz School Of Medicine At Temple University in 1987.

NPI Number

Dr. Marcelis' NPI number is 1285667105.

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Frequently Asked Questions

Does Dr. John Marcelis accept my insurance?
You can see the insurance plans that Dr. John Marcelis accepts on their Vitals profile.
How can I make an appointment with Dr. John Marcelis?
You can find contact information for Dr. John Marcelis here on Vitals.
Which hospitals is Dr. John Marcelis affiliated with?
Dr. John Marcelis is affiliated with Jefferson Abington Hospital.
Where is Dr. John Marcelis's office located?
Dr. John Marcelis's office is located at 10000 Anns Choice Way, Warminster, PA, 18974.
Is Dr. John Marcelis accepting new patients?
Dr. John Marcelis is accepting new patients on Vitals. View Dr. John Marcelis's profile on Vitals to make an appointment.

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