Carpal Tunnel

Cold Sores

Diverticulitis

Fibromyalgia

Hemorrhoids

Hypothyroidism

Impetigo

Kidney Stones

Pancreatitis

Preeclampsia

Sepsis

Tonsillitis

Ulcerative Colitis

Urinary Tract Infection

Vitiligo

Conditions

CVS Health (formerly Aetna)

Florida Blue / Guidewell

Elevance Health (formerly Anthem)

Blue Cross Blue Shield (BCBS)

Cigna

Aflac

Allstate

Centene (Fidelis Care)

HealthFirst

Humana Health

Kaiser Permanente

Medicaid

Medicare

UnitedHealthcare

WellCare

Insurances

Los Angeles, CA

San Diego, CA

San Francisco, CA

Washington, DC

Miami, FL

Atlanta, GA

Chicago, IL

Baltimore, MD

Boston, MA

New York, NY

Brooklyn, NY

Houston, TX

Dallas, TX

Philadelphia, PA

Saint Louis, MO

Locations

Annual Physical

Annual Skin Screening

Colonoscopy

Couples Therapy

Dermatology Consultation

Hypnosis

Knee Replacement Surgery

Laser Hair Removal

Lasik Surgery

Liposuction

Marriage Counseling

Nexplanon Insertion

Plastic Surgery

Psychotherapy

Tattoo Removal

Procedures

Addiction Medicine Specialist

Cardiologist

Dermatology is the branch of medicine dealing with the skin. It is a speciality with both medical and surgical aspects. A dermatologist is a specialist medical doctor who manages diseases related to skin, hair, nails, and some cosmetic problems.

Dermatologist

Endocrinologist (Diabetes & Hormones Specialist)

Endocrinologist

Gastroenterologist (Stomach & Bowel Specialist)

Gastroenterologist

General Practitioner

An obstetrician-gynecologist, or OB-GYN, is a healthcare professional that specializes in female reproductive health.

OB/GYN

Ophthalmologist

Optometrist

Orthopedic Surgeon

Otolaryngologist

Pediatrician

Podiatrist

Psychiatrist / Neurologist

Urologist

Specialists

Ny Coll Of Osteo Med Of Ny Inst Of Tech- Old Westbury Ny

New York Institute of Technology College of Osteopathic Medicine

Peconic Bay Medical Center

Extremely Intelligent Caring and Professional Doctor, Friendly Staff, Beautiful Brand New Medical Building. It doesn't get any better!

Awesome Doctor!

Dr. Marc Allen, DO is a board certified Internist in Smithtown, NY.
  Learn more about Dr. Allen, practice locations, insurances accepted, and read reviews on Everyday Health-CARE.

Dr. Marc Allen, DO | Internist in Smithtown, NY

Dr. Marc Allen, DO

acceptsNewPatients

telemedicineEnabled

Ambulatory Care Consultation

Annual Check Up

Aromatherapy

Bladder and Bowel Management

Blood Pressure Testing

Bowel and Bladder Management

Certified Medical Examination for Commercial Driver / Vessel Master

Certified Medical Examination for Overseas Worker

Certified Medical Examination for Pilot

Certified Medical Examination for Police Officer / Fireman

Cholesterol Management

Cortisone Shots

Craniosacral Therapy

Cryotherapy

Department of Transportation (DOT) Physical Exam

Diabetes Follow Up

Disability Evaluation

Fecal Occult Blood Test (FOBT)

Flu Shot

Freezing of Warts

General Consultation

General Follow Up

General Medical Consultation

Glycosylated Hemoglobin Test

Guided Imagery

Hepatitis A Vaccine

Hepatitis B Vaccine

Herpes Zoster Vaccine

Hospital Discharge/Follow Up

Hospitalist Consultation

Immigration Medical Examination

Infection Consultation

Medical Detoxification

Medicare Annual Wellness Visit

Nail Removal

Pneumococcal Vaccine

Posterior Cruciate Ligament Consultation

Pre-Surgery Checkup / Pre-Surgical Clearance

Pre-Surgery Consultation

Pre-Travel Checkup

Pre-Travel Consultation

Pre-Travel Follow Up

Primary Care Consultation

Rapid Influenza Diagnostic Test

Screening for Disease / Preventive Medicine

Senior Visit

Splinter / Foreign Body Removal

Swine Flu Shot

Transgender Care

Transgender Medical Consultation

Transgender Medical Follow Up

Trigger Point Therapy

Vaccine(s)

Welcome to Medicare Physical

Wellness Care

Worker's Compensation / Disability Evaluation

Yearly Wellness Visit (For Medicare Patients)

Yellow Fever Vaccine

Dr. Marc Allen, DO is an Internist, who primarily practices in Smithtown, NY with 1 additional practice location. He is board certified by the American Board of Internal Medicine. Dr. Allen graduated from New York Institute of Technology College of Osteopathic Medicine and completed his residency at North Shore Univ Hosp, Internal Medicine.
  
Dr. Allen is fluent in English and Spanish,  and is currently seeing new patients. Dr. Allen’s practice accepts Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Allen’s office at (631) 543-8844.

National Provider Identifier (NPI)

English

Spanish

Internist

Humana Health 

Washington DC, DC

An orthopedic surgeon has specialization in preserving, investigating, and restoring the form and function of the extremities, spine, and related structures through medical, surgical, and physical methods. They care for patients with musculoskeletal issues, including congenital deformities, trauma, infections, tumors, metabolic disturbances, and degenerative diseases affecting the spine, hands, feet, knees, hips, shoulders, and elbows in both children and adults. Additionally, orthopedic surgeons address primary and secondary muscular problems and the impact of central or peripheral nervous system lesions on the musculoskeletal system.

An obstetrician/gynecologist has specialized knowledge, skills, and expertise in the medical and surgical management of the female reproductive system and related disorders. This physician acts as a consultant to other healthcare providers while also serving as a primary care physician for women, addressing their unique health needs throughout various stages of life.

Obstetrician / Gynecologist (OBGYN)

A pediatrician focuses on the physical, emotional, and social health of children from birth through young adulthood. Their care includes a wide range of health services, from preventive healthcare to diagnosing and treating acute and chronic diseases. Pediatricians consider the biological, social, and environmental influences on a child's development, as well as how diseases and dysfunctions can impact growth and overall development.


Dermatologists are medical professionals trained to diagnose and treat a wide range of skin conditions in both children and adults, including skin cancers, melanomas, and other tumors. They also manage disorders of the mouth, external genitalia, hair, and nails, and are skilled in treating conditions like dermatitis, allergic reactions, and skin manifestations of systemic diseases. Dermatologists receive specialized training in dermatopathology and dermatologic surgical techniques, and address cosmetic issues such as hair loss and scarring. Additionally, they use laboratory methods to diagnose immune-related skin disorders, often collaborating with immunohematologists for expert consultation and targeted therapies.

An internist specializing in disorders of the endocrine glands, including the thyroid and adrenal glands. This specialist also manages a range of conditions such as diabetes, metabolic and nutritional disorders, obesity, pituitary disorders, and menstrual and sexual health issues.

An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs.

Dr. Marc Allen, DO

Internist

Ratings & Reviews

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1045 W Jericho Tpke

Doctors by Category

Specialists

Addiction Medicine Specialist

Cardiologist

Dermatologist

Endocrinologist

Gastroenterologist

General Practitioner

OB/GYN

Ophthalmologist

Optometrist

Orthopedic Surgeon

Otolaryngologist

Pediatrician

Podiatrist

Psychiatrist / Neurologist

Urologist

Conditions

Carpal Tunnel

Cold Sores

Diverticulitis

Fibromyalgia

Hemorrhoids

Hypothyroidism

Impetigo

Kidney Stones

Pancreatitis

Preeclampsia

Sepsis

Tonsillitis

Ulcerative Colitis

Urinary Tract Infection

Vitiligo

Procedures

Annual Physical

Annual Skin Screening

Colonoscopy

Couples Therapy

Dermatology Consultation

Hypnosis

Knee Replacement Surgery

Laser Hair Removal

Lasik Surgery

Liposuction

Marriage Counseling

Nexplanon Insertion

Plastic Surgery

Psychotherapy

Tattoo Removal

Locations

Los Angeles, CA

San Diego, CA

San Francisco, CA

Washington, DC

Miami, FL

Atlanta, GA

Chicago, IL

Baltimore, MD

Boston, MA

New York, NY

Brooklyn, NY

Houston, TX

Dallas, TX

Philadelphia, PA

Saint Louis, MO

Insurances

CVS Health (formerly Aetna)

Florida Blue / Guidewell

Elevance Health (formerly Anthem)

Blue Cross Blue Shield (BCBS)

Cigna

Aflac

Allstate

Centene (Fidelis Care)

HealthFirst