Dr. Marc Allen, DO

Family Medicine  |  
Male  |  
Age 47
Insurances AcceptedSave
Dr. Marc Allen, DO
Dr Marc Allen is a board certified Internal Medicine Physician who specializes in Primary Care and Preventative Medicine.

1045 W Jericho Tpke

Smithtown, NY 11787

Contact Information
Dr. Marc Allen, DO

Dr. Marc Allen, DO

Accepted insurance

  • Aetna
  • Assurant Health
  • Blue Cross Blue Shield
  • Capital District Physician's Health Plan (CDPHP)
  • CareSource
  • Cigna
  • Commercial Insurance Company
  • Connecticare
  • Coventry Health Care
  • EmblemHealth
  • Empire Blue Cross Blue Shield
  • First Health (Coventry Health Care)
  • Golden Rule
  • 14 More

*Please verify this information when scheduling an appointment.

Learn about Dr. Allen

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you

Dr. Allen's Experience

Dr. Allen's experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Family Medicine
  • Board certified in Internal Medicine
  • No malpractice claims found
  • No sanctions found
  • No board actions found

Care Philosophy

This content was provided by Dr. Allen "Dr Allen places a strong emphasis on disease prevention. "I believe it is far better and easier to prevent a medical problem than to treat it after the fact""


  • Family Medicine
  • Internal Medicine
  • Preventive Medicine

Board Certifications

  • Internal Medicine
    Accredited by: American Board of Internal Medicine*

Conditions Treated

  • Anemia
  • Anxiety
  • Asthma
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Depression
  • Diabetes
  • High Cholesterol
  • Hypertension
  • Obesity
  • Osteoporosis
  • Pulmonary Disease
  • Sleep Apnea


  • Allergy Skin Testing
  • Echocardiography
  • Electrocardiogram (EKG)
  • Immunization
  • Physical Examination
  • Spirometry

Background Check

0 Malpractice Claims

No malpractice history found for New York.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Stony Brook Hosp-Suny
    Undergraduate School | Graduated 1995
  • Ny Coll Of Osteo Med Ny Inst Of Tech Old Westbury
    Medical School | Graduated 1999
  • North Shore University Hospital
    Internship Hospital | Completed 2000
  • North Shore University Hospital
    Residency Hospital | Completed 2002

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Allen has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

Dr. Allen does not have any memberships or affiliations listed. If you are Dr. Allen and would like to add memberships or affiliations, please update your profile.

Dr. Allen's Reviews

Likelihood of recommending Dr. Allen to family and friends
based on 55 total reviews (14 with comments)
Dr. Allen's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    10 to 15 minutes
Patient Comments (14)
in Deer Park |
I have been seeing Dr. Allen for several years and am very pleased with him and his staff, particularly his office manager Bridget. They are both empathetic and knowledgeable and provide outstanding service to the patients. I have relied on Bridget many times through the years, often requiring a referral or other important matter at the last minute. She always delivers with her caring manner and excellent attitude. Doctor and staff work together to make the patients experience here a great one.
in Deer Park, NY |
I was referred to Dr. Allen after a move from Staten Island. He is the best most caring doctor. . He is very knowledgable and I trust his judgement implicitly. His office manager Bridget is excellent. She runs the office extremely well so wait times are never excessive. Bridget is a caring person who always puts patient's needs first. Several years ago I had a serious health issue and was waiting for the results of a blood test. She called me from her house at night to let me know all was ok.
Commack, NY |
I went to Dr. Allen's office for the first time on Friday. His office states they have walk in hours for sick appts, so I walked in Friday right before they were about to close. The front staff was so nice to me, saying no problem at all and squeezed me right in. I waited no more than 5 mins, Highly recommend.
Miami, FL |
The best doctor I have ever been to ever. My appointment was 11:00. In walks dr allen at 11:00 and he actually apologized for the wait. No wait at all though. The nicest down to earth guy. I had read all his great reviews and they are true. His staff is all new I'm told. Everyone seemed so nice. Very satisfied.
West Islip, NY |
Have been going to Dr. Allen's office for years. He is a great doctor who takes his time with patients, never rushes you and always answers all your questions. His office staff is so kind always greeting you with a big smile, making you feel right at home. The office is very efficient always getting things done right away, and following through to make sure thing we're taking care of. Highly recommend this office.
Smithtown, NY |
I would not know given the fact that I see the PA he has in his office. What you need to know is that the office staff, especially the office manager, who works from Florida is grossly incompetent. Her refusal to provide referrals for patients has been well documented. She threatens to discharge patients when her competence is tested. I truly have no idea why these Doctor's would trust her to have any interactions with patients in any capacity.
Northport, NY |
I can't say enough good things about Dr Allen. Genuinely a caring nice person. His PA Jennifer and NP Ashley are equally as awesome. I actually look forward to my check ups.
Northport, NY |
One smooth operation. Very impressed. Great office , great doctor, great staff. A win win win
Commack, NY |
On a scheduled appt my name was called,thought I was going to see Dr,but was directed to billing where I was told I owed money,said I only had $40 was told " I'll take it,now you may see Dr Allen,was not happy,that's why I got a new primary care Dr,His office staff are cold,rude,they run his ship...
in Smithtown, NY |
The office staff is inadequate and frustrating to say the least. I have called several times to get referrals don't even have the decency to call back patients . They do not send referrals promptly, nor do they send scripts when asked to do so. YOU NEED A NEW STAFF!!!!!!
in smithtown |
This whole experience with Dr Allen has been unbelievable. This is something I never do but I feel I have to this Time. I went to him as a new patent after looking at reviews on line. It took over to months to actually get results back from a physical. It started with my first visit that I thought was with him. No it MP then had to wait another month to see him then had to wait 5 more weeks to get my results from all the test he did. I am running out of space. Do not go to him it is a schame.
I love this doctor. I saw him for he first time recently and he was the best doctor I have ever seen. He was so nice and caring. His office is beautiful. I was very pleased.
New York, NY |
Fantastic Doctor! So nice and caring. A real person not some nerdy robot. A regular guy who is extremely competent. Beautiful new medical building is stunning. Professional and courteous staff. A real win win !
in Dix Hills, NY |
Dr. Mark Allen, Communication skills are excellent with his bed side manner. He takes the lead in helping his patients. I have found him to be a right good fit for me.
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This provider offers the following appointment availability:
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Next Day
Dr. Allen accepts 28 insurance carriers
  • Aetna
    Aetna POS
    Aetna PPO
    Choice Open Access POS
    Choice POS
    Elect Choice EPO
    Elect Choice HMO
    Elect Choice PPO
  • Assurant Health
  • Blue Cross Blue Shield
    Blue Access PPO
    Blue Advantage
    Blue Advantage HMO
    Blue Advantage Plus
    Blue Advantage Plus HMO
    Blue Advantage PPO
    Blue Card PPO
    Blue Care Connection PPO
    Blue Choice
    Blue Choice HMO
    Blue Choice POS
    Blue Choice PPO
    Blue Cross
    Blue Cross and Blue Shield
    Blue Cross Blue Shield EPO
    Blue Cross Blue Shield HMO
    Blue Cross Blue Shield POS
    Blue Cross Blue Shield PPO
    Blue HMO
    Federal Employee Program
    Medicare Blue PPO
    Medicare HMO
    State Employees Program
  • Capital District Physician's Health Plan (CDPHP)
    Capital District Physician's Health Plan (CDPHP) HMO
  • CareSource
  • Cigna
    Choice Fund
    Choice Fund PPO
    Cigna Healthcare of Arizona
    Cigna POS
    Great West Healthcare-Cigna
    Great West Healthcare-Cigna EPO
    Great West Healthcare-Cigna HMO
    Great West Healthcare-Cigna POS
    Network Open Access
    Open Access
    Open Access HMO
    Open Access Plus PPO
    Open Access POS
    Select Network HMO
    Select Network POS
    Select Network PPO
  • Commercial Insurance Company
  • Connecticare
    Connecticare HMO
  • Coventry Health Care
  • EmblemHealth
    GHI Health Plan All of New York HMO-High
    Health Insurance Plan of Greater New York (HIP)
    Health Insurance Plan of Greater New York (HIP) HMO
    Health Insurance Plan of Greater New York (HIP) PPO
  • Empire Blue Cross Blue Shield
    Empire Blue Cross Blue Shield PPO
  • First Health (Coventry Health Care)
    First Health (Coventry Health Care) EPO
    First Health (Coventry Health Care) HMO
    First Health (Coventry Health Care) POS
    First Health (Coventry Health Care) PPO
  • Golden Rule
  • HealthFirst
    HealthFirst HMO
    HealthFirst PPO
  • Humana
    Advantage Plus
    Choice Care HMO
    Choice Care Network PPO
    Choice PPO
    Medicare Advantage HMO
    Medicare PPO
  • Kaiser Permanente
  • MagnaCare
    MagnaCare PPO
  • Mail Handlers Benefit Plan (MHBP)
    Standard Nationwide Standard
  • Medicaid
  • Medical Mutual of Ohio
  • National Elevator
  • Oxford Health Plans
    Commercial HMO
    Freedom Plan
    Freedom Plan HMO
    Liberty Plan HMO
    Oxford Health Plans HMO
    Oxford Health Plans POS
  • State Farm
  • Tricare
    Family Health Plan HMO
    Family Health Plan POS
    Family Health Plan PPO
    TriCare for Life
    Tricare HMO
  • UnitedHealthCare
    AARP Medicare Complete Essential HMO
    AARP Medicare Complete Premier HMO
    CarePlus Medicare Advantage PPO
    Choice EPO
    Choice HMO
    Choice Plus
    Choice Plus EPO
    Choice Plus HMO
    Choice Plus POS
    Choice Plus PPO
    Commercial HMO
    Community Plan
    Empire Plan
    Freedom Plan Direct
    Medicaid HMO
    Medicare Advantage
    Navigate HMO
    Options PPO
    Oxford Liberty
    Select HMO
    Select Plus EPO
    Select Plus HMO
    Select Plus POS
    UHCCP AmeriChoice by UnitedHealthcare (NYU)
    UHCCP AmeriChoice Personal Care Plus - NY
    United Healthcare EPO
    United Healthcare HMO
    United Healthcare POS
    United Healthcare PPO
  • WellCare
  • Worker's Compensation
    Worker's Compensation WC

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Allen has admitting privileges

Huntington Hospital
270 Park Ave
Huntington, NY 11743
View Hospital Profile