Dr. John J. Mast
- Gender: Male
- Experience: 25 years
- Graduated from: Indiana University School Of Medicine
- Graduation year: 1996
- Sole propriator: No
- NPI: 1154392371
Dr. John J. Mast M.D.
Geriatrician
He is located at 418 Cloverleaf Road in Elizabethtown, PA 17022. Can help patients with the following: Anemia, Breastfeeding and Lactation, Hiatal Hernia, Influenza, Low Back Pain, Mold Exposure. His National Provider Identifier (NPI) number is 1154392371. Appointment can be made via the phone number (717) 653-1467. He is affiliated with 2 practices and 1 hospitals.
Conditions treated
Dr. John J. Mast, being an geriatrician, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. John J. Mast.
- Abdominal Pain
- Acute Pain
- Aging In Place
- Alzheimer's Disease
- Anemia
- Anxiety
- Arthritis
- Asthma
- Atherosclerosis
- Autism
- Balance Issues
- Birth Control Counseling
- Bladder Control
- Bone Loss
- Breastfeeding and Lactation
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Cognitive Decline
- Common Cold
- Constipation
- Cystitis
- Diabetes
- Diarrhea
- Edema
- Fatigue
- Fecal Incontinence
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hip Bursitis
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Hypothyroidism
- Infant Care
- Influenza
- Inguinal Hernia
- Low Back Pain
- Migraine
- Mold Exposure
- Nausea and Vomiting
- Obesity
- Osteoarthritis (OA)
- Osteoporosis
- Peptic Ulcer
- Pregnancy
- Prenatal Care
- Prescription Refill
- Progressive Neurological Disorders
- Thyroid Disease
- Urethritis
- Urinary Tract Infection (UTI)
- Women's Health
Medicare Enrollment
Dr. John J. Mast is enrolled to bill Medicare as a Practitioner - Geriatric Medicine (also registered under: Practitioner - Family Practice) .
Bills through: Lancaster General Medical Group
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Avanir Pharmaceuticals | $106 |
| Pfizer | $66 |
| Mylan | $29 |
Other
| Food and Beverage | $229 |
Studies
INDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated in 1996Additional Specialities
- Family Physician
- Internist
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Questions & Answers
What conditions does Dr. John J. Mast treat?
Dr. John J. Mast provides treatment for Anemia, Breastfeeding and Lactation, Hiatal Hernia, Influenza, Low Back Pain, Mold Exposure. For the full list see this list.
Does Dr. John J. Mast have affiliation with practices?
Dr. John J. Mast is affiliated with Penn Medicine LGHP Family Medicine Downtown Psychology. For the full list of practices see this list.
Where can you meet with Dr. John J. Mast?
Dr. John J. Mast's office is located at 418 Cloverleaf Road in Elizabethtown, PA 17022.
Has Dr. John J. Mast affiliation with hospitals?
Dr. John J. Mast is affiliated with LANCASTER GENERAL HOSPITAL.