Procedure Volume Patient Data Patient Conditions Reviews Back to Top

As an affiliate of BetterHelp, DocSpot may receive a commission if you purchase services through this link.

Home > MA Providers > Psychologists

Dr. William Douglas Gammon, PHD

(No ratings)

Specializes in: Psychology

572 Boston Road Suite 14
Billerica, MA 01821

(781) 696-2070

Dr. William Douglas Gammon, PHD is a psychologist in Billerica, MA specializing in psychology.

Office Locations

572 Boston Road Suite 14
Billerica, MA 01821

(781) 696-2070

(978) 294-8977

open_in_new

Therapy on Your Terms

Connecting with a therapist can be difficult. BetterHelp can help with that. They have an online network of licensed and accredited psychologists, marriage and family therapists, clinical social workers, and counselors. You can connect with their therapists via online video, phone, real-time chat, or asynchronous messaging. Easily switch therapists until you find one that fits you. Sign up through DocSpot for a discount on your first month's subscription.

Save 20% on

As an affiliate of BetterHelp, DocSpot may receive a commission if you purchase services through this link.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William Douglas Gammon, PHD treated as a psychologist in Billerica, MA during 2012 were mental health therapy.

Volume of procedures performed by Dr. William Douglas Gammon, PHD for Medicare patients.

mental health therapy	396

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William Douglas Gammon, PHD treated as a psychologist in Billerica, MA during 2013 were mental health therapy.

Volume of procedures performed by Dr. William Douglas Gammon, PHD for Medicare patients.

mental health therapy	436

Conditions of Medicare patients treated by Dr. William Douglas Gammon, PHD in 2013

Hypertension	0
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	75
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William Douglas Gammon, PHD treated as a psychologist in Billerica, MA during 2014 were mental health therapy.

Volume of procedures performed by Dr. William Douglas Gammon, PHD for Medicare patients.

mental health therapy	369

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William Douglas Gammon, PHD treated as a psychologist in Billerica, MA during 2015 were mental health therapy.

Volume of procedures performed by Dr. William Douglas Gammon, PHD for Medicare patients.

mental health therapy	314

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William Douglas Gammon, PHD.

**Ethnicity**
Non-Hispanic White	26
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William Douglas Gammon, PHD treated as a psychologist in Billerica, MA during 2016 were mental health therapy.

Volume of procedures performed by Dr. William Douglas Gammon, PHD for Medicare patients.

mental health therapy	183

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William Douglas Gammon, PHD.

**Ethnicity**
Non-Hispanic White	13
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William Douglas Gammon, PHD treated as a psychologist in Billerica, MA during 2017 were mental health therapy.

Volume of procedures performed by Dr. William Douglas Gammon, PHD for Medicare patients.

mental health therapy	248

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William Douglas Gammon, PHD.

**Ethnicity**
Non-Hispanic White	15
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William Douglas Gammon, PHD treated as a psychologist in Billerica, MA during 2018 were mental health therapy.

Volume of procedures performed by Dr. William Douglas Gammon, PHD for Medicare patients.

mental health therapy	295

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William Douglas Gammon, PHD.

**Ethnicity**
Non-Hispanic White	14
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William Douglas Gammon, PHD treated as a psychologist in Billerica, MA during 2019 were mental health therapy.

Volume of procedures performed by Dr. William Douglas Gammon, PHD for Medicare patients.

mental health therapy	299

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William Douglas Gammon, PHD.

**Ethnicity**
Non-Hispanic White	13
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William Douglas Gammon, PHD treated as a psychologist in Billerica, MA during 2020 were mental health therapy.

Volume of procedures performed by Dr. William Douglas Gammon, PHD for Medicare patients.

mental health therapy	183

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William Douglas Gammon, PHD.

**Ethnicity**
Non-Hispanic White	12
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2020

Volume of procedures performed by Dr. William Douglas Gammon, PHD for Medicare patients.

The highest averages for the top procedures that Dr. William Douglas Gammon, PHD treated as a psychologist in Billerica, MA were mental health therapy.

mental health therapy	302

Average Medicare Patient Data From 2012 - 2020

Information about Medicare patients treated by Dr. William Douglas Gammon, PHD.

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	10
Hispanic	0
Native American / Alaskan Native	0
Other	0

Average of Total of Conditions of Medicare patients treated by Dr. William Douglas Gammon, PHD From 2012 - 2020

The highest averages of the most common conditions of Medicare patients that Dr. William Douglas Gammon, PHD treated were depression.

Hypertension	0
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	8
Chronic Kidney Disease	0
Asthma	0
Osteoporosis	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Atrial Fibrillation	0
Cancer	0
Dementia	0

Education & Training

He has a state license in Massachusetts.

Licensed In: Massachusetts

Ratings & Reviews

Dr. William Douglas Gammon, PHD does not have any reviews yet, be the first to leave a review of Dr. William Douglas Gammon, PHD here: Leave a Review

(No ratings)

Leave a Review

Biography

Dr. William Gammon is a psychology specialist in Billerica, MA. Dr. Gammon has obtained a license to practice in Massachusetts.

Select Year:

Dr. William Douglas Gammon, PHD

Office Locations

Therapy on Your Terms

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

Conditions of Medicare patients treated by Dr. William Douglas Gammon, PHD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2020

Average Medicare Patient Data From 2012 - 2020

Average of Total of Conditions of Medicare patients treated by Dr. William Douglas Gammon, PHD From 2012 - 2020

Education & Training

Ratings & Reviews

Biography

Psychologists in Nearby Locations

Other Providers in Billerica, MA