Accepting new patients

Dr. Michael Bertos, MD

Internal Medicine ·  Male · Age 51

Dr. Bertos

Merrimack Valley Internal Medicine

20 Research Pl Ste 310 North Chelmsford, MA 01863

Accepting new patients

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(978) 459-2152


Dr. Michael Bertos, MD is an internal medicine specialist in North Chelmsford, MA. He graduated from Boston University School Of Medicine and specializes in internal medicine.


At a glance

  • Explains conditions well . Patients said this doctor explains conditions well. See reviews
  • Hospital satisfaction . Patients said they were highly satisfied at this doctor's hospital. See hospitals
  • Practices at top hospital . America's 250 Best Hospitals Award™ See hospitals

Insurance Check

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Dr. Bertos accepts

Accepted insurance can change. Please double-check when making an appointment.

(978) 459-2152

Dr. Bertos accepts the following insurance:

Blue Cross Blue Shield
Blue Card PPO
Blue Cross Blue Shield of Louisiana
BlueConnect HMO
Blue Cross Blue Shield of Massachusetts
Preferred Blue PPO
Cigna
Cigna HMO
Cigna PPO
Open Access Plus
Harvard Pilgrim Health Care
Harvard Pilgrim Health Care PPO
Humana
Choice Care PPO
Tufts Health Plan
Tufts PPO

Background Check

No malpractice claims found for Massachusetts
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Experience Check

Check if Dr. Bertos treats your condition or procedure

Dr. Bertos' conditions and procedures:

  • Abdominal Disorders
  • Abdominal Pain
  • Abnormal Thyroid
  • Achilles Tendinitis
  • Actinic Keratosis
  • Acute Bronchitis
  • Acute Deep Vein Thrombosis (DVT)
  • Acute Laryngitis
  • Acute Lower Respiratory Infection
  • Acute Pharyngitis
  • Acute Sinusitis
  • Acute Upper Respiratory Infection
  • Acute Venous Embolism Thrombosis
  • ADHD and-or ADD
  • Alcohol Misuse Screening and Counseling
  • Alcohol or Substance Misuse Screening and Counseling
  • All Headaches (incl. Migraine)
  • Allergic Reaction
  • Allergic Rhinitis
  • Anal Disorders
  • Anal or Rectal Pain
  • Anemia
  • Anemia and Iron Deficiency Screening
  • Ankle Sprain and Achilles Tendon Sprain or Rupture
  • Ankle Sprains and Strains
  • Anxiety
  • Arthritis
  • Arthritis of the Elbow
  • Asthma
  • Asymptomatic Post-Menopausal Status
  • Ataxia
  • Atherosclerosis
  • Autonomic Disorders
  • Back Pain
  • Balanoposthitis
  • Bedsores
  • Bell's Palsy
  • Benign Chronic Pain Syndrome
  • Bladder Diseases
  • Bladder Infection
  • Blood Disorders
  • Blood in Urine (Hematuria)
  • Bone Disorders
  • Breast Diseases
  • Breast Pain
  • Bronchiectasis
  • Bronchitis
  • Bruise of Face, Scalp, or Neck
  • Bunion
  • Bursitis
  • Calcium Metabolism Disorders
  • Candidiasis of Skin and Nails
  • Cardiovascular Stress Test
  • Carpal Tunnel Syndrome
  • Celiac Disease
  • Cellulitis
  • Chest Pain
  • Cholesterol Screening
  • Chronic Fatigue Syndrome
  • Chronic Neck Pain
  • Chronic Pain
  • Chronic Sinusitis
  • Cold Sore
  • Confusion
  • Constipation
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Coronary Artery Disease (CAD)
  • Cough
  • Deep Vein Thrombosis (DVT)
  • Dehydration
  • Dementia or Depression Screening
  • Dermatitis
  • Diabetes Counseling
  • Diabetes Mellitus, Secondary
  • Diabetes Screening
  • Diabetes Type 1
  • Diabetes Type 2
  • Diabetes With Renal Manifestations
  • Diabetic Polyneuropathy
  • Diarrhea
  • Difficulty With Walking
  • Diverticulosis, Intestinal
  • Dizziness
  • Dysentery
  • Dysphagia
  • Dysthymia (Chronic Depression)
  • Dysthymia and Cyclothymia (Mood Disorders)
  • Ear Ache
  • Ear Disorders
  • Earwax Buildup
  • Elbow Injuries
  • Electrocardiogram (EKG)
  • Emphysema
  • Enlarged Prostate (BPH)
  • Enteritis
  • Erectile Dysfunction
  • Esophageal Diseases
  • Esophagitis
  • Essential Tremor
  • Fecal Occult Blood Test for Colorectal Cancer
  • Fever
  • Fibromyalgia
  • Foot Conditions
  • Fungal Infections
  • Fungal Nail Infection
  • Gait Abnormality
  • Gas-Bloat Syndrome
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Diseases
  • Gonorrhea Screening
  • Gout
  • Hair Loss
  • Hammer Toe
  • Headache
  • Heart Disease
  • Heart Palpitations
  • Heartburn
  • Hemorrhoids
  • Hepatitis A Screening
  • Hepatitis B Virus Screening
  • Hepatitis C Virus Screening
  • Hepatitis Screening
  • Herpes Simplex Infection
  • Herpes Simplex Screening
  • Herpes Zoster Without Complication
  • Hip Sprain
  • HIV Screening
  • Hives
  • Hoarse Voice (Dysphonia)
  • Hypercalcemia
  • Hyperkalemia
  • Hyperlipidemia
  • Hypertension
  • Hypertensive Chronic Kidney Disease
  • Hypoglycemia
  • Hypokalemia
  • Hypotension
  • Hypotension (Excluding Maternal)
  • Hypothyroidism
  • Immunization
  • Indigestion
  • Influenza (Flu)
  • Insomnia
  • Iron Metabolism Disorders
  • Irritable Bowel Syndrome
  • Itchy Skin
  • Joint Pain
  • Knee Disorders
  • Lactose Intolerance
  • Laryngitis
  • Larynx Conditions
  • Lateral and Medial Epicondylitis (Tennis and Golf Elbow)
  • Leg and Foot Ulcers
  • Limb Cramp
  • Limb Pain
  • Limb Swelling
  • Limb Swelling Caused by Fluid Overload
  • Lipid Disorders
  • Liver Damage from Alcohol
  • Liver Function Test
  • Low Back Pain
  • Low Blood Oxygen Level
  • Lyme Disease
  • Magnesium Metabolism Disorders
  • Malaise and Fatigue
  • Male Sexual Conditions
  • Malnutrition
  • Menopausal and Postmenopausal Disorders
  • Menstrual Disorders (incl. Dysmenorrhea)
  • Migraine
  • Mineral Metabolism Disorders
  • Muscle Spasm
  • Muscle Weakness
  • Mycobacterial Lung Infection
  • Nausea
  • Neck Muscle Strain
  • Neurogenic Bladder
  • Nighttime Urination (Nocturia)
  • Non-Alcoholic Fatty Liver Disease
  • Noninfectious Gastroenteritis and Colitis
  • Nosebleed
  • Obesity
  • Obesity Counseling
  • Osteoarthritis
  • Osteoarthritis of Ankle and Foot
  • Osteoarthritis of Hand or Wrist
  • Osteoarthritis of Hands
  • Osteoarthritis of Hip
  • Osteoarthritis of Hip and Thigh
  • Osteoarthritis of Knee
  • Osteoarthritis of Shoulder
  • Osteopenia
  • Osteoporosis
  • Osteoporosis Screening
  • Outer Ear Infection
  • Overactive Bladder
  • Overweight
  • Painful Urination (Dysuria)
  • Partial Lung Collapse
  • Patellofemoral Pain Syndrome or Knee Pain
  • Peptic Ulcer
  • Pericardial Disease
  • Peripheral Autonomic Neuropathy
  • Peripheral Nerve Disorders
  • Peripheral Vascular Disease (PAD, PVD)
  • Pharyngitis
  • Phlebitis and Thrombophlebitis
  • Pinkeye (Conjunctivitis)
  • Plantar Fasciitis
  • Pneumonia
  • Pollen Allergy
  • Polymyalgia Rheumatica (PMR)
  • Polyneuropathy
  • Polyuria
  • Postherpetic Neuralgia
  • Prostate Cancer Screening
  • Prostatitis
  • Pulmonary Disease
  • Pulmonary Function Test
  • Radiculopathy (Not Due to Disc Displacement)
  • Rash
  • Raynaud's Disease
  • Reflux Esophagitis
  • Restless Leg Syndrome
  • Rib Fracture
  • Rickets
  • Ringworm
  • Rosacea
  • Sciatica (Not Due to Disc Displacement)
  • Sepsis
  • Sexually Transmitted Infections Screening
  • Shingles
  • Shortness of Breath
  • Shoulder Disorders
  • Sinusitis
  • Skin Infections
  • Sleep Apnea
  • Sleep Disorders
  • Sleep-Related Leg Cramp
  • Smoking Cessation Counseling
  • Sore Throat
  • Speech, Language and Learning Disorders
  • Spondylosis
  • Sprains and Strains (incl. Muscle Tear)
  • Stomach Diseases
  • Symptomatic Menopause
  • Syphilis Screening
  • Tension Headache
  • Testicular Dysfunction
  • Thrombosis
  • Thyroid Disease
  • Thyroid Screening
  • Tinnitus
  • Tobacco Use Disorder
  • Torticollis
  • Transient Ischemic Attack (TIA)
  • Tremor
  • Trigeminal Neuralgia
  • Ulcer
  • Urinary Disorders
  • Urinary Incontinence
  • Urinary Stones
  • Urinary Tract Infection (UTI)
  • Venous Embolism and Thrombosis
  • Venous Insufficiency
  • Vertigo
  • Viral Infection
  • Vitamin D Deficiency
  • Wellness Examination
  • Wheezing

Dr. Bertos' Reviews

Likelihood to recommend Dr. Bertos

4.0

Based on 31 reviews

5 Stars
74.19354838709677%
(23)
4 Stars
0%
(0)
3 Stars
0%
(0)
2 Stars
6.451612903225806%
(2)
1 Star
19.35483870967742%
(6)

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Dr. Bertos?
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Average Reported Wait Time
  • 10 – 15 minutes
Dr. Bertos' Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. Michael Bertos, MD
RecentHighestLowestMost Helpful
Reply
Bad. Very unprofessional. He was the covering physician for my sister's doctor. I tried to reach him to discuss a serious concern I had with my sister's care at Northwood rehab in Lowell. He had a staff member from that facility call me back to tell me to stop bothering him. She cannot advocate for herself and I am her health care proxy. Very discourteous and uncaring.
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He cares for my family and is an excellent physician
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The Very Best Ever. I am disappointed to learn that he has moved to Westford because it is very difficult for me to get transportation to the new office. I tell everyone what a great doctor he is but hope he doesn't get so busy he won't have time for me. I am not leaving my name but he says I am going to live to 105, so he will know who I am.
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HE IS A WONDERFUL DOCTOR. HE LISTENS WHEN YOU SPEAK,ADDRESSES YOUR CONCERNS. I FOUND HIM THRU MY CARDIO DOC BECAUSE THE DOC. I SAW FOR 15 YEARS MADE TOO MANY WRONG DIAGNOSIS.I HAVE CANCER AND HE IS ON TOP OF MY TREATMENT AND SENDS ME FOR SCANS,ETC. TO MAKE SURE ALL IS WELL.
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Dr Bertos is great, their admin staff is very difficult to work with along with very poor follow up with admin team. Sue is very difficult, unpleasant and quite rude/impatient on the phone. Calling for an ederly person with late stage cancer Sue was rude, unpleasant and no compassion. Waited 4 days for prescription to be refilled and then they sent it to wrong Pharmacy....ridiculous.
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Dr Michael Bertos was recommend to me by one of my other Doctors , as a primary care physician .... I absolutely love my Doctor He's the best ever . I don't want everyone running to him . So I will say that for myself and MY NEEDS , I found the best Doctor for me ! Hes very Adorable , tall , dark and extremely handsome! So ladies be warned if you are meeting him for the 1st time . I remembe when I met him , I must have turned a 100 diffrent shades of red ! Hes been my PCP for 20 years
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Dr. Bertos is an excellent, through, and knowledgeable doctor. He provides through testing and diagnostics; he also provides discussion, opinions, and options for treatments. He is a doctor that will work with you. He is the best and most trusted doctor that I have ever worked with.
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About Me

Biography

Dr. Michael Bertos, MD is an internal medicine specialist in North Chelmsford, MA. He graduated from Boston University School Of Medicine and specializes in internal medicine.

Specialties

  • Internal Medicine

Education

Boston University School Of Medicine
Medical School

Languages

  • Portuguese
  • English

Affiliated Hospitals

Check the quality of care at hospitals where Dr. Bertos treats patients.

Learn more

77% Patient experience rating, 8% higher than the national average

  • America's 250 Best Hospitals Award™ (2019, 2018, 2017)
  • America's 50 Best Hospitals Award™ (2019)
  • Patient Safety Excellence Award™ (2019)
  • America's 100 Best Hospitals Award™ (2018, 2017)

70% Patient experience rating, 1% higher than the national average