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Summary
Dr. John Marcelis is an internal medicine physician with specialized training in geriatric medicine, bringing 39 years of experience to patient care. He earned his medical degree from Lewis Katz School of Medicine at Temple University and completed his residency at Temple University Health System. His extensive background has given him deep expertise in caring for both adult patients and older adults with complex medical needs. Dr. Marcelis speaks English fluently with his patients.
Dr. Marcelis practices at Erickson Health Medical Group in Warminster, Pennsylvania, and maintains an affiliation with Jefferson Abington Hospital. He treats patients with chronic kidney disease and kidney conditions, helping them manage these complex health challenges. His practice also focuses on managing high cholesterol in children and teenagers. Dr. Marcelis provides preventive care services including COVID-19 booster shots and flu vaccines, and he performs routine blood tests to monitor his patients' …overall health.
Read More Read less Dr. Marcelis practices at Erickson Health Medical Group in Warminster, Pennsylvania, and maintains an affiliation with Jefferson Abington Hospital. He treats patients with chronic kidney disease and kidney conditions, helping them manage these complex health challenges. His practice also focuses on managing high cholesterol in children and teenagers. Dr. Marcelis provides preventive care services including COVID-19 booster shots and flu vaccines, and he performs routine blood tests to monitor his patients' …overall health.
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 Tel: (215) 443-3850
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
Compare with Similar Doctors
 |  |  |  |
| Dr. John Francis Marcelis, MD | Dr. Cheryl A. Jackson, MD | Dr. Bridget A. Walker, DO | Dr. Sabina Sharmeen, MD |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 39 Years of Experience | |||
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks English, Spanish | Speaks English | |
| Warminster , PA | Darby , PA | Yardley , PA | Secane , PA |
| Med School: Lewis Katz School Of Medicine At Temple University | Med School: Howard University College of Medicine | Med School: Lake Erie College of Osteopathic Medicine | Med School: Dhaka Medical College |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. John Francis Marcelis
Medical Specialties
Dr. John Francis Marcelis has the following 2 specialties
Specialty Expertise
Dr. John Francis Marcelis has the following 11 areas of expertise
Certifications, License, & Education
39 Years Experience
MEDICAL LICENSE
Medical Doctor, Pennsylvania, 2026, Active
EDUCATION & TRAINING
Residency
Temple University Health System
Medical School
Lewis Katz School Of Medicine At Temple UniversityGraduated in 1987
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Frequently Asked Questions
- Where is Dr. John Marcelis's office located?
- Dr. John Marcelis's office is located at 10000 Anns Choice Way, Warminster, PA, 18974.
- Which hospitals is Dr. John Marcelis affiliated with?
- Dr. John Marcelis is affiliated with Jefferson Abington Hospital.
- Does Dr. John Marcelis accept my insurance?
- You can see the insurance plans that Dr. John Marcelis accepts on their Vitals profile.
- What languages does Dr. John Marcelis speak?
- Dr. John Marcelis speaks English.
- Does Dr. John Marcelis accept virtual/telehealth appointments?
- Dr. John Marcelis has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
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