Dr. Marc Allen

Hospital Medicine | Internal Medicine
Northwell Health
1045 West Jericho Turnpike, 
Smithtown, NY 
On Staff At
Offers Telehealth
Northwell Health
1045 West Jericho Turnpike, 
Smithtown, NY 
OverviewInsuranceLocationsSimilar Doctors

Overview

Marc Allen is an Internal Medicine specialist and a Hospital Medicine provider in Smithtown, New York. Dr. Allen is rated as an Experienced provider by MediFind in the treatment of Carbuncle. His top areas of expertise are Lysosomal Acid Lipase Deficiency, Vitamin D Deficiency, Carbuncle, and Folliculitis.

Graduate Institution
New York College Of Osteopathic Medicine|State University Of New York At Stony Brooks
Specialties
Hospital Medicine
Internal Medicine
Licenses
Internal Medicine in NY
Board Certifications
American Board Of Internal Medicine
Hospital Affiliations
Huntington Hospital
Hofstra/Northwell School Of Medicine/Nursing
Languages Spoken
English
Spanish
Gender
Male

Insurance

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

Find your insurance
Find your insuranceClose

Locations

1045 West Jericho Turnpike, Smithtown, NY 11787
Call: 631-543-8844
Similar Doctors
Advanced in Carbuncle
Dr. Panupong Lisawat
Nephrology | Hospital Medicine
Advanced in Carbuncle
Dr. Panupong Lisawat
Nephrology | Hospital Medicine

Nuvance Health Medical Practice Ct Inc

170 Mount Pleasant Rd, 
Newtown, CT 
 (39.7 miles away)
203-426-1818
Languages Spoken:
English
See accepted insurances
Offers Telehealth

Panupong Lisawat is a Nephrologist and a Hospital Medicine provider in Newtown, Connecticut. Dr. Lisawat is rated as a Distinguished provider by MediFind in the treatment of Carbuncle. His top areas of expertise are Acute Kidney Failure, Chronic Kidney Disease, Low Sodium Level, and End-Stage Renal Disease (ESRD).

Charles A. Gambino
Experienced in Carbuncle
Dr. Charles A. Gambino
Hospital Medicine
Experienced in Carbuncle
Dr. Charles A. Gambino
Hospital Medicine
207 Glen Cove Avenue, 
Sea Cliff, NY 
 (22.2 miles away)
516-676-1742
Languages Spoken:
English, Italian, Spanish
See accepted insurances
Offers Telehealth

Charles Gambino is a Hospital Medicine provider in Sea Cliff, New York. Dr. Gambino is rated as an Advanced provider by MediFind in the treatment of Carbuncle. His top areas of expertise are Respiratory Syncytial Virus (RSV) Infection, Vitamin D Deficiency, Vitamin B12 Deficiency, Endoscopy, and Pacemaker Implantation.

Experienced in Carbuncle
Dr. Joanne Kechejian
Hospital Medicine
Experienced in Carbuncle
Dr. Joanne Kechejian
Hospital Medicine
59 Southern Boulevard, 
Nesconset, NY 
 (3.5 miles away)
631-659-1700
Languages Spoken:
English
See accepted insurances

Joanne Kechejian is a Hospital Medicine provider in Nesconset, New York. Dr. Kechejian is rated as an Advanced provider by MediFind in the treatment of Carbuncle. Her top areas of expertise are Vitamin D Deficiency, Vitamin B12 Deficiency, Muscle Spasms, and Lung Nodules.

VIEW MORE CARBUNCLE 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. Allen's expertise for a condition
ConditionClose
      • Advanced
      • Lysosomal Acid Lipase Deficiency
        Dr. Allen is
        Advanced
        . Learn about Lysosomal Acid Lipase Deficiency.
        See more Lysosomal Acid Lipase Deficiency experts
      • Vitamin D Deficiency
        Dr. Allen is
        Advanced
        . Learn about Vitamin D Deficiency.
        See more Vitamin D Deficiency experts
      • Experienced
      • Boils
        Dr. Allen is
        Experienced
        . Learn about Boils.
        See more Boils experts
      • Carbuncle
        Dr. Allen is
        Experienced
        . Learn about Carbuncle.
        See more Carbuncle experts
      • Folliculitis
        Dr. Allen is
        Experienced
        . Learn about Folliculitis.
        See more Folliculitis experts
      • Vitamin B12 Deficiency
        Dr. Allen is
        Experienced
        . Learn about Vitamin B12 Deficiency.
        See more Vitamin B12 Deficiency experts
      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.