Experienced in Memory Loss

Dr. John J. Mast

Geriatrics
Penn Medicine
LG Health Physicians Geriatrics
2112 Harrisburg Pike, Suite 312, 
Lancaster, PA 
On Staff At
Experienced in Memory Loss
Penn Medicine
LG Health Physicians Geriatrics
2112 Harrisburg Pike, Suite 312, 
Lancaster, PA 
OverviewInsuranceLocationsSimilar Doctors

Overview

John Mast is a Geriatrics provider in Lancaster, Pennsylvania. Dr. Mast is rated as an Experienced provider by MediFind in the treatment of Memory Loss. His top areas of expertise are Heart Failure with Preserved Ejection Fraction (HFpEF), Decorticate Posture, Decerebrate Posture, and Dysgraphia.

Graduate Institution
Indiana University School Of Medicine
Residency
East Tennessee State University
Specialties
Geriatrics
Licenses
Family Medicine in PA
Board Certifications
Family Medicine - Geriatric Medicine, 2009
Family Medicine, 1999
Hospital Affiliations
Lancaster General Hospital
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

Find your insurance
Find your insuranceClose

Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Capital Blue Cross
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • OTHER MEDICARE PART D
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
Gateway Health Plan
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE SNP
  • OTHER MEDICARE PART D
Geisinger
  • HMO
  • POS
  • PPO
Highmark
  • EPO
  • HMO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Medicare
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE PART D
Oscar
  • EPO
  • HMO
  • PPO
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
UPMC
  • EPO
  • PPO
View 7 Less Insurance Carriers -

Locations

LG Health Physicians Geriatrics
2112 Harrisburg Pike, Suite 312, Lancaster, PA 17601
Call: 717-544-3022

Additional Areas of Focus

Dr. Mast has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.

Common Cold
Hypertension
Urinary Incontinence
Anemia
Osteoporosis
Hearing Loss
Spasticity
Bowel Incontinence
Fainting
Memory Loss
Delirium
Varicose Veins
Heart Failure
Dementia
Glaucoma
Stroke
Shingles
Chronic Obstructive Pulmonary Disease (COPD)
Arthritis
Flu
View 10 Less Areas of Focus-
Similar Doctors
Distinguished in Memory Loss
Dr. Matthew J. Beelen
Geriatrics
Distinguished in Memory Loss
Dr. Matthew J. Beelen
Geriatrics

LG Health Physicians Alzheimer's And Memory Care

2150 Harrisburg Pike, Suite 200, 
Lancaster, PA 
 (0.1 miles away)
717-544-3022
Languages Spoken:
English
See accepted insurances
Accepting New Patients
Offers Telehealth

Matthew Beelen is a Geriatrics provider in Lancaster, Pennsylvania. Dr. Beelen is rated as an Advanced provider by MediFind in the treatment of Memory Loss. His top areas of expertise are Memory Loss, Alzheimer's Disease, Cerebellar Degeneration, and Vascular Dementia. Dr. Beelen is currently accepting new patients.

Distinguished in Memory Loss
Dr. Lynsey E. Brandt
Geriatrics | Internal Medicine
Distinguished in Memory Loss
Dr. Lynsey E. Brandt
Geriatrics | Internal Medicine

Christiana Care Health Services Inc

501 W 14th St Wilmington Hospital Gateway, 
Wilmington, DE 
 (47.9 miles away)
Languages Spoken:
English
See accepted insurances
Accepting New Patients
Offers Telehealth

Lynsey Brandt is a primary care provider, practicing in Geriatrics and Internal Medicine in Wilmington, Delaware. Dr. Brandt is rated as an Advanced provider by MediFind in the treatment of Memory Loss. Her top areas of expertise are Dementia, Memory Loss, Cerebellar Degeneration, and Insomnia. Dr. Brandt is currently accepting new patients.

Eileen P. Simak
Advanced in Memory Loss
Dr. Eileen P. Simak
Geriatrics
Advanced in Memory Loss
Dr. Eileen P. Simak
Geriatrics

LVPG Geriatric Medicine-17th Street

1627 Chew St, PO Box 7017, 
Allentown, PA 
 (58.6 miles away)
610-969-3390
Languages Spoken:
English
See accepted insurances
Offers Telehealth

Eileen Simak is a primary care provider, practicing in Geriatrics in Allentown, Pennsylvania. Dr. Simak is rated as an Advanced provider by MediFind in the treatment of Memory Loss. Her top areas of expertise are Memory Loss, Cerebellar Degeneration, Hepatocerebral Degeneration, and Cerebellar Multiple System Atrophy.

VIEW MORE MEMORY LOSS DOCTORS

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Mast's expertise for a condition
ConditionClose
      • Advanced
      • Decerebrate Posture
        Dr. Mast is
        Advanced
        . Learn about Decerebrate Posture.
        See more Decerebrate Posture experts
      • Decorticate Posture
        Dr. Mast is
        Advanced
        . Learn about Decorticate Posture.
        See more Decorticate Posture experts
      • Heart Failure with Preserved Ejection Fraction (HFpEF)
        Dr. Mast is
        Advanced
        . Learn about Heart Failure with Preserved Ejection Fraction (HFpEF).
        See more Heart Failure with Preserved Ejection Fraction (HFpEF) experts
      • Experienced
      • Alzheimer's Disease
        Dr. Mast is
        Experienced
        . Learn about Alzheimer's Disease.
        See more Alzheimer's Disease experts
      • Anemia
        Dr. Mast is
        Experienced
        . Learn about Anemia.
        See more Anemia experts
      • Atrial Fibrillation
        Dr. Mast is
        Experienced
        . Learn about Atrial Fibrillation.
        See more Atrial Fibrillation experts
      • Contracture Deformity
        Dr. Mast is
        Experienced
        . Learn about Contracture Deformity.
        See more Contracture Deformity experts
      • Delirium
        Dr. Mast is
        Experienced
        . Learn about Delirium.
        See more Delirium experts
      • Dementia
        Dr. Mast is
        Experienced
        . Learn about Dementia.
        See more Dementia experts
      View All 25 Experienced Conditions
      Want to save this doctor for later?
      Sign Up
      Is this your doctor?
      Find A Second Opinion
      Not sure about your diagnosis?
      Check Your Symptoms
       
       
       
       
      Learn about our expert tiers
      Learn More
      Are you the provider on this profile?
      Claim Profile
      For Patients
      • Our Story
      • How MediFind Works
      • Conditions A-Z
      • Doctor Directory
      • Symptoms Directory
      • Procedures Directory
      • Treatment Directory
      • Drug Directory
      • Infusion Center Finder
      • FAQ
      • Contact Us
      For Providers and Practices
      • Claim Your Profile
      • Newsroom
      Business Solutions
      • Provider
      • Network Solutions
      Additional Resources
      • Consumer Health Data Privacy Policy
      • Privacy Policy
      • Terms of Use
      • Advertising Policy
      • Content Policy
      Subscribe to our newsletter

      Sign up to stay informed about MediFind and get wellness sent your way.

      Close

        By subscribing, I agree to MediFind's Terms of Use, Privacy Policy and Consumer Health Data Privacy Policy, as applicable.

        Bullet PinMediFind
        Follow us on
        This information is not intended as a substitute for informed medical advice. You should work with a licensed professional to diagnose and treat health conditions. We let the data speak for itself, MediFind does not endorse any healthcare providers.
        © 2026 All Rights Reserved

        Request an Appointment

        If you are experiencing a medical emergency, call 9-1-1.

        MediFind will contact the provider for your appointment request. You’ll receive status updates by email. Your provider or MediFind will reach out to you directly by phone or email to schedule your appointment or request additional information.

        Patient Details

        This information is for the patient who will be seen at the appointment.

          Close

          Returning patient? Use your address on file with the provider.

          Insurance Details

          Please provide information of the primary insurance holder as the practice may require this information to schedule.

          Insurance Provider *
          Insurance ProviderClose

          Appointments Details

          Let’s get more information about your appointment.

                  0 / 1000
                  0 / 1000
                  By pressing the Submit button you are agreeing to MediFind’s Terms of Use, Privacy Policy and Consumer Health Data Privacy Policy, as applicable.