Dr. Gwenn S O'keeffe M.D.?
Update this Profile
Dr. Gwenn S O'keeffe M.D., Pediatrician

Dr. Gwenn S O'keeffe M.D.


228 Billerica Rd Chelmsford MA, 01824


Dr. Gwenn O'keeffe is a pediatrician practicing in Chelmsford, MA. Dr. O'keeffe is a doctor who specializes in the health care of children. As a pedicatrician, Dr. O'keeffe diagnoses and treats infections, injuries, diseases and other disorders in children. Pediatricians typically work with infants, children, teenagers and young adults up to age 21. They practice medical care as well as preventative health care. Dr. O'keeffe can oversee and manage the physical, mental and emotional health of their patients.

Education and Training

Tufts Univ Sch of Med, Boston Ma 1992

Tufts University School of Medicine 1992

Board Certification

PediatricsAmerican Board of PediatricsABP

Provider Details



  • Children'S Hosp Of Wi, Pediatric Hematology-Oncology; New England Med Ctr Hosps, Pediatrics  

Dr. Gwenn S O'keeffe M.D.'s Practice location

Practice At 228 Billerica Rd

228 Billerica Rd -
Chelmsford, MA 01824
Get Direction
New patients: 978-250-6000
Fax: 978-250-6460

Dr. Gwenn S O'keeffe M.D.'s reviews

Write Review

Recommended Articles

  • RSV Symptoms

    What is RSV?RSV or respiratory syncytial virus is a common virus that usually affects the respiratory tract. It can cause colds in adults and older children, but may cause serious lung infections, such as pneumonia or bronchiolitis in babies and immunocompromised individuals. CausesRSV is only...

  • Does My Baby Have Acid Reflux?

    Spit out what they have just been fed; this is known as reflux or posseting. This is not vomiting. It is important to learn the difference between vomiting and reflux. In vomiting, the muscles contract to forcefully expel the contents of the stomach, whereas in reflux, it is a spontaneous expulsion...

  • Can Children Suffer from Sleep Apnea?

    Sleep apnea is a very common sleep disorder that can affect any individual at any age, even children. It is typically caused by something that blocks the airway, thus leading to abnormal breathing while asleep. If your child snores loudly or displays other symptoms such as breathing difficulties...

  • What Is the Babinski Reflex?

    Reflexes Seen in NewbornsMuch of a baby's activity during the first few weeks of life is reflexive. When you put your finger in your baby's mouth, your baby would automatically suck on it by reflex. Your baby would not think of what to do but rather respond according to reflexes. When exposed to a...

  • What Is Breast Milk Jaundice?

    Jaundice is a very common disorder in newborns. Actually, about 60% of infants experience jaundice within the initial days after birth. It develops when there is a high level of bilirubin in the blood. Bilirubin is a yellowish pigment released when the red blood cells are broken down.Normally,...

  • Tdap Vaccine for Whooping Cough

    The Tdap vaccine protects the body from three diseases: tetanus, diphtheria, and whooping cough....

Nearby Providers

Nearest Hospitals



Head west on Billerica Road (MA 129) 4305 ft
Turn right onto Golden Cove Road 2782 ft
Continue straight onto Steadman Street 1.3 mi
Continue straight onto Stedman Street 2608 ft
Turn left onto Westford Street 1468 ft
Make a sharp right onto Wood Street 1910 ft
Continue straight onto Rourke Bridge 1997 ft
Turn right onto Pawtucket Boulevard (MA 113) 4869 ft
Turn left onto Magnolia Street 1107 ft
Turn left onto Varnum Avenue 221 ft
Turn right 849 ft
You have arrived at your destination, on the right



Head west on Billerica Road (MA 129) 1.4 mi
Turn left onto Boston Road (MA 4) 626 ft
Make a slight right onto Acton Road (MA 27) 5.1 mi
Continue straight onto Main Street (MA 27) 2.5 mi
Turn left onto Great Road (MA 2A) 2.2 mi
Continue straight onto Elm Street (MA 2A) 3124 ft
Enter Concord Rotary and take the 2nd exit onto Elm Street (MA 2) 2113 ft
Continue straight onto Concord Turnpike (MA 2) 1.1 mi
Turn right onto Old Road To Nine Acre Corner 4684 ft
You have arrived at your destination



Head east on Billerica Road (MA 129) 5103 ft
Take the ramp on the left 2321 ft
Merge left onto US 3 1270 ft
Keep right at the fork towards I 495 North: Lowell 3398 ft
Take the ramp on the right towards I 495 North: Lawrence 3938 ft
Merge left onto I 495 9.0 mi
Take the ramp on the right towards MA 28 South: Andover 2004 ft
Go straight 137 ft
Turn left onto Union Street (MA 28) 1517 ft
Continue straight onto South Union Street (MA 28) 1.5 mi
Continue straight onto Union Street 1930 ft
Turn right onto General Street 1167 ft
You have arrived at your destination