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Home > MA Providers > Neurosurgeons

Dr. Daniel P. Cahill III, PhD, MD

(Daniel Cahill, MD)

(25 Ratings)

Specializes in: Neurosurgery and Neuro-Oncology

Johns Hopkins University School of Medicine

Professional interests include: cancer, meningioma, sarcoma (bone and soft tissue cancer), and more.

55 Fruit Street
Boston, MA 02114

(617) 724-0884

Dr. Daniel P. Cahill III, PhD, MD is a neurosurgeon in Boston, MA specializing in neurosurgery and neuro-oncology. He graduated from Johns Hopkins University School of Medicine. Dr. Daniel P. Cahill III, PhD, MD is affiliated with Massachusetts General Hospital, Mass General Cancer Center: Neuro-Oncology and MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC.

Office Locations

55 Fruit Street
Boston, MA 02114

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Noteworthy Medicare Patient Procedures Performed by Dr. Daniel P. Cahill III, PhD, MD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 5%

By Affordability:

cranial radiosurgery

external beam radiation therapy

stereotactic radiosurgery

In 2023, Dr. Daniel P. Cahill III, PhD, MD had a list price for cranial radiosurgery, external beam radiation therapy (EBRT), and stereotactic radiosurgery (SRS) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Massachusetts. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Daniel P. Cahill III, PhD, MD treated as a neurosurgeon in Boston, MA during 2012 were removal of lesion (e.g. growth), cranial surgery and excision.

Volume of procedures performed by Dr. Daniel P. Cahill III, PhD, MD for Medicare patients.

cranial surgery	30
doctor visit	14
excision	30
removal of lesion (e.g. growth)	30

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Daniel P. Cahill III, PhD, MD treated as a neurosurgeon in Boston, MA during 2013 were removal of lesion (e.g. growth), cranial surgery and excision.

Volume of procedures performed by Dr. Daniel P. Cahill III, PhD, MD for Medicare patients.

cranial surgery	16
doctor visit	19
excision	16
removal of lesion (e.g. growth)	16

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD.

**Gender**
Male	31
Female	41

**Age**
From 65 to 74	35
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2013

Hypertension	64
High Cholesterol	64
Stroke	19
Ischemic Heart Disease	26
Depression	33
Chronic Kidney Disease	26
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	21
Chronic Obstructive Pulmonary Disease	0
Diabetes	19
Dementia	0
Cancer	24

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Daniel P. Cahill III, PhD, MD treated as a neurosurgeon in Boston, MA during 2014 were removal of lesion (e.g. growth), cranial surgery and excision.

Volume of procedures performed by Dr. Daniel P. Cahill III, PhD, MD for Medicare patients.

cranial surgery	18
excision	18
removal of lesion (e.g. growth)	18

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD.

**Gender**
Male	30
Female	39

**Age**
From 65 to 74	30
From 75 to 84	23
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2014

Hypertension	75
High Cholesterol	64
Stroke	28
Ischemic Heart Disease	39
Depression	43
Chronic Kidney Disease	33
Asthma	17
Osteoperosis	17
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	17
Diabetes	22
Dementia	0
Cancer	35

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Daniel P. Cahill III, PhD, MD treated as a neurosurgeon in Boston, MA during 2015 were removal of lesion (e.g. growth), cranial surgery and excision.

Volume of procedures performed by Dr. Daniel P. Cahill III, PhD, MD for Medicare patients.

cranial surgery	27
doctor visit	26
excision	27
removal of lesion (e.g. growth)	27

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD.

**Gender**
Male	70
Female	74

**Age**
From 65 to 74	86
From 75 to 84	30
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2015

Hypertension	75
High Cholesterol	63
Stroke	31
Ischemic Heart Disease	31
Depression	43
Chronic Kidney Disease	35
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	24
Chronic Obstructive Pulmonary Disease	21
Diabetes	26
Dementia	18
Cancer	32

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Daniel P. Cahill III, PhD, MD treated as a neurosurgeon in Boston, MA during 2016 were removal of lesion (e.g. growth), cranial surgery, excision and hospital care.

Volume of procedures performed by Dr. Daniel P. Cahill III, PhD, MD for Medicare patients.

cranial surgery	28
doctor visit	13
excision	28
hospital care	14
inpatient care	14
removal of lesion (e.g. growth)	28

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD.

**Gender**
Male	35
Female	36

**Age**
From 65 to 74	39
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2016

Hypertension	75
High Cholesterol	61
Stroke	35
Ischemic Heart Disease	39
Depression	41
Chronic Kidney Disease	32
Asthma	21
Osteoperosis	15
Atrial Fibrilation	0
Heart Failure	23
Chronic Obstructive Pulmonary Disease	0
Diabetes	15
Dementia	18
Cancer	27

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Daniel P. Cahill III, PhD, MD treated as a neurosurgeon in Boston, MA during 2017 were hospital care, inpatient care, removal of lesion (e.g. growth) and cranial surgery.

Volume of procedures performed by Dr. Daniel P. Cahill III, PhD, MD for Medicare patients.

cranial surgery	17
excision	17
hospital care	27
inpatient care	27
removal of lesion (e.g. growth)	17

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD.

**Gender**
Male	44
Female	41

**Age**
From 65 to 74	39
From 75 to 84	25
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2017

Hypertension	75
High Cholesterol	54
Stroke	27
Ischemic Heart Disease	39
Depression	41
Chronic Kidney Disease	36
Asthma	0
Osteoperosis	0
Atrial Fibrilation	15
Heart Failure	16
Chronic Obstructive Pulmonary Disease	18
Diabetes	24
Dementia	22
Cancer	35

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Daniel P. Cahill III, PhD, MD treated as a neurosurgeon in Boston, MA during 2018 were hospital care, inpatient care, removal of lesion (e.g. growth) and cranial surgery.

Volume of procedures performed by Dr. Daniel P. Cahill III, PhD, MD for Medicare patients.

cranial surgery	25
doctor visit	17
excision	25
hospital care	27
inpatient care	27
removal of lesion (e.g. growth)	25

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD.

**Gender**
Male	44
Female	47

**Age**
From 65 to 74	31
From 75 to 84	32
85 and over	11
Less than 65	17

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2018

Hypertension	75
High Cholesterol	73
Stroke	37
Ischemic Heart Disease	51
Depression	41
Chronic Kidney Disease	44
Asthma	0
Osteoperosis	0
Atrial Fibrilation	15
Heart Failure	25
Chronic Obstructive Pulmonary Disease	14
Diabetes	20
Dementia	35
Cancer	34

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Daniel P. Cahill III, PhD, MD treated as a neurosurgeon in Boston, MA during 2019 were removal of lesion (e.g. growth), hospital care, cranial surgery and inpatient care.

Volume of procedures performed by Dr. Daniel P. Cahill III, PhD, MD for Medicare patients.

cranial surgery	12
excision	12
hospital care	12
inpatient care	12
removal of lesion (e.g. growth)	12

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD.

**Gender**
Male	26
Female	29

**Age**
From 65 to 74	30
From 75 to 84	12
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2019

Hypertension	71
High Cholesterol	51
Stroke	25
Ischemic Heart Disease	33
Depression	40
Chronic Kidney Disease	31
Asthma	0
Osteoperosis	0
Atrial Fibrilation	25
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	20
Cancer	40

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Daniel P. Cahill III, PhD, MD treated as a neurosurgeon in Boston, MA during 2020 were radiation therapy, image guided procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Daniel P. Cahill III, PhD, MD for Medicare patients.

cranial surgery	15
excision	15
hospital care	19
image guided procedures	53
inpatient care	19
radiation therapy	53
removal of lesion (e.g. growth)	15

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD.

**Gender**
Male	34
Female	45

**Age**
From 65 to 74	51
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2020

Hypertension	65
High Cholesterol	48
Stroke	20
Ischemic Heart Disease	42
Depression	28
Chronic Kidney Disease	35
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	14
Chronic Obstructive Pulmonary Disease	18
Diabetes	27
Dementia	0
Cancer	48

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Daniel P. Cahill III, PhD, MD treated as a neurosurgeon in Boston, MA during 2021 were radiation therapy, image guided procedures, removal of lesion (e.g. growth) and cranial surgery.

Volume of procedures performed by Dr. Daniel P. Cahill III, PhD, MD for Medicare patients.

cranial surgery	31
excision	31
hospital care	27
image guided procedures	54
inpatient care	27
radiation therapy	54
removal of lesion (e.g. growth)	31

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD.

**Gender**
Male	57
Female	57

**Ethnicity**
Non-Hispanic White	100
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	56
From 75 to 84	41
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2021

Hypertension	69
High Cholesterol	58
Stroke	28
Ischemic Heart Disease	26
Depression	29
Chronic Kidney Disease	34
Asthma	11
Osteoperosis	14
Atrial Fibrilation	15
Heart Failure	18
Chronic Obstructive Pulmonary Disease	21
Diabetes	18
Dementia	17
Cancer	55

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Daniel P. Cahill III, PhD, MD treated as a neurosurgeon in Boston, MA during 2022 were radiation therapy, image guided procedures, removal of lesion (e.g. growth) and cranial surgery.

Volume of procedures performed by Dr. Daniel P. Cahill III, PhD, MD for Medicare patients.

cranial surgery	18
doctor visit	13
excision	18
image guided procedures	35
radiation therapy	35
removal of lesion (e.g. growth)	18

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD.

**Gender**
Male	30
Female	53

**Age**
From 65 to 74	41
From 75 to 84	28
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2022

Hypertension	65
High Cholesterol	65
Stroke	33
Ischemic Heart Disease	18
Depression	29
Chronic Kidney Disease	17
Asthma	0
Osteoperosis	19
Atrial Fibrilation	17
Heart Failure	16
Chronic Obstructive Pulmonary Disease	22
Diabetes	18
Dementia	0
Cancer	57

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Daniel P. Cahill III, PhD, MD for Medicare patients.

The highest averages for the top procedures that Dr. Daniel P. Cahill III, PhD, MD treated as a neurosurgeon in Boston, MA were radiation therapy, image guided procedures, removal of lesion (e.g. growth) and hospital care.

cranial surgery	21
doctor visit	17
excision	21
hospital care	21
image guided procedures	47
inpatient care	21
radiation therapy	47
removal of lesion (e.g. growth)	21

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD.

**Gender**
Male	36
Female	42

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	9
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	20
85 and over	1
Less than 65	1
65 to 74	39

Average of Total of Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Daniel P. Cahill III, PhD, MD treated were hypertension, high cholesterol, cancer and depression.

Hypertension	64
High Cholesterol	54
Stroke	25
Ischemic Heart Disease	31
Depression	33
Chronic Kidney Disease	29
Asthma	4
Osteoporosis	5
Heart Failure	14
Chronic Obstructive Pulmonary Disease	11
Diabetes	17
Atrial Fibrillation	7
Dementia	11
Cancer	35

Education & Training

Dr. Daniel P. Cahill III, PhD, MD graduated from Johns Hopkins University School of Medicine. He completed residency at Massachusetts General Hospital. He is certified by the Neurological Surgery, American Board of Neurological Surgery and has a state license in Massachusetts.

Medical School: Johns Hopkins University School of Medicine

Residency: Massachusetts General Hospital

Board Certification: Neurological Surgery, American Board of Neurological Surgery

Licensed In: Massachusetts

Affiliations & Hospitals

Dr. Daniel P. Cahill III, PhD, MD is associated with these hospitals and organizations:

Massachusetts General Hospital

Mass General Cancer Center: Neuro-Oncology

MASSACHUSETTS GENERAL PHYSICIANS ORGANIZATION INC

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Daniel P. Cahill III, PhD, MD appears to accept the following insurance providers: Harvard Pilgrim Health Care, MultiPlan, Tufts Health Plan, United Healthcare, Aetna, TRICARE, Medicare, Medicaid, Humana, Railroad Medicare, Coventry, Cigna, Blue California, Beech Street, WellPoint, Medicare ACO, WellSense, Senior Whole Health, Fallon Health, Commonwealth Care Alliance, Blue Cross Blue Shield Medicare, Maine Community Health Options, Mass General Brigham Health Plan, MassHealth and WellSense NH.

Insurance Accepted by Provider includes:

According to our sources, Dr. Daniel P. Cahill III, PhD, MD accepts the following insurance providers:

Harvard Pilgrim Health Care

MultiPlan

Tufts Health Plan

United Healthcare

Aetna

TRICARE

Medicare

Medicaid

Humana

Railroad Medicare

Coventry

Cigna

Blue California

Beech Street

WellPoint

Medicare ACO

WellSense

Senior Whole Health

Fallon Health

Commonwealth Care Alliance

Blue Cross Blue Shield Medicare

Maine Community Health Options

Mass General Brigham Health Plan

MassHealth

WellSense NH

Ratings & Reviews

Dr. Daniel P. Cahill III, PhD, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 25 ratings. We collect ratings and reviews of Dr. Daniel P. Cahill III, PhD, MD from all over the web to help you find the right in Boston, MA.

Overall Rating

(25 Ratings)

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General Payments

These charts describe general payments received by Dr. Daniel P. Cahill III, PhD, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Merck Sharp & Dohme Corporation	$25,059 NON-PRODUCT $13,948	TEMODAR $521	$10,590
Servier Pharmaceuticals LLC	$10,327 $10,327
Eli Lilly and Company	$6,358 $6,358
Boston Scientific Corporation	$5,100 $5,100
GlaxoSmithKline, LLC.	$2,600 $2,600
Other	$89 NON BRAND $73	ZEJULA $16

**Types of Payments**
Consulting Fee	$24,314
Travel and Lodging	$13,536
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$11,375
Food and Beverage	$308

Biography

Dr. Daniel Cahill sees patients in Boston, MA. His medical specialties are neurosurgery and neuro-oncology. He is a graduate of Johns Hopkins University School of Medicine. For his professional training, Dr. Cahill completed a residency program at Massachusetts General Hospital. In Dr. Cahill's practice, he is particularly interested in connective tissue disorders, sarcoma (bone and soft tissue cancer), and meningioma. His patients gave him an average rating of 5.0 stars (out of 5). He accepts Blue California, Coventry, and Viant, in addition to other insurance carriers. Dr. Cahill is affiliated with Massachusetts General Hospital.

Select Year:

Dr. Daniel P. Cahill III, PhD, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Daniel P. Cahill III, PhD, MD in 2023

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Daniel P. Cahill III, PhD, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Biography

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