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Dr. Douglas Middleton Dahl, MD

Accepting New Patients

(50 Ratings)

Specializes in: Urologic Oncology

Yale School of Medicine

Professional interests include: laparoscopic surgery, kidney cancer, genitourinary cancer, and more.

165 Cambridge Street 7th Floor
Boston, MA 02114

(617) 726-0875

Dr. Douglas Middleton Dahl, MD is an urologic oncologist in Boston, MA specializing in urologic oncology. He graduated from Yale School of Medicine. Dr. Douglas Middleton Dahl, MD is affiliated with Newton-Wellesley Hospital and Massachusetts General Hospital.

Office Locations

Massachusetts General Hospital

165 Cambridge Street 7th Floor
Boston, MA 02114

(857) 238-3838

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Newton-Wellesley Hospital

55 Fruit Street Grb 1102
Boston, MA 02114

(617) 726-9089

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Some issues Dr. Douglas Middleton Dahl, MD can help you with:

Laparoscopic Surgery

Laparoscopic surgery is a kind of minimally invasive surgery using a thin, narrow tube called a laparoscope. Usually performed on the abdomen or the pelvic region, the surgeon makes a few very small incisions instead of one large one.

During the procedure, the surgeon inserts the laparoscope, which contains a light and camera that allows the surgeon to see what is happening inside the body. Then tiny tools are placed through the small openings and used to perform the surgery.

The most common laparoscopic surgery is gallbladder removal, but laparoscopic surgery may also be used for the removal of a kidney or appendix, to treat certain cysts and tumors, for bariatric surgery, for some GERD treatments, or for hernia repairs, among others.

Because laparoscopic surgery only uses a few tiny incisions, the scars are minimal and recovery is easier than with open surgery.

Robotic Surgery

Robotic surgery is a type of minimally invasive surgery, using a tiny opening to get inside the body instead of making a large cut. It uses small tools attached to a thin robotic arm, which is controlled by the surgeon. Robotic surgery may be referred to by the specific kind of robot that is used. The most advanced robot currently in use is called the da Vinci, and surgery using it is sometimes called da Vinci surgery.

There are many benefits to robotic surgery, both for the patient and the surgeon. Robotic surgery allows for more precise movements and increased control during very delicate surgical procedures. This makes performing surgery accurately much easier for surgeons and reduces fatigue. The smaller 'hand' of the robot can enter the body via a much smaller opening, which reduces the risk of infection and scarring and leads to a faster recovery. The robotic hands also contain tiny moveable cameras among their tools, giving surgeons a much closer view of the procedure than would be possible with traditional surgery.

In The News (see more mentions in the news)

“The early results are encouraging, but more experience and longer follow-up are needed to know whether TULSA will distinguish itself from other alternatives to surgery and radiation for localized...”—"Ultrasound Therapy for Prostate Ca Yields High PSA Response", MedPage Today, May 2019

“He was operated on by Dr. Douglas M. Dahl at Massachusetts General Hospital.”—"Angus King returns to U.S. Senate after cancer surgery", Bangor Daily News, July 2015

“On Friday, Herman thanked the doctors, nurses, staff and administration at Massachusetts General Hospital in Boston, where Dr. Douglas M. Dahl performed King's surgery, as well as well-wishers in...”—"Angus King undergoes successful surgery for prostate cancer", Bangor Daily News, June 2015

Noteworthy Medicare Patient Procedures Performed by Dr. Douglas Middleton Dahl, MD in 2023

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

Top 5%

By Volume:

kidney surgery

laparoscopic partial nephrectomy

laparoscopic pelvic lymphadenectomy

laparoscopic radical prostatectomy

lymphadenectomy

minimally invasive prostate surgery

prostate surgery

By Affordability:

laparoscopic lymphadenectomy

pelvic lymphadenectomy

In 2023, among providers in related specialties within Massachusetts, Dr. Douglas Middleton Dahl, MD performed more kidney surgery, laparoscopic partial nephrectomy, laparoscopic pelvic lymphadenectomy, laparoscopic radical prostatectomy, lymphadenectomy (lymph node dissection), minimally invasive prostate surgery, and prostate surgery procedures for Medicare patients than 95% of them and he also had a list price for laparoscopic lymphadenectomy, and pelvic lymphadenectomy that was lower than the list prices billed to Medicare by 95% of them. 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.

Top 10%

By Volume:

minimally invasive procedures

In 2023, Dr. Douglas Middleton Dahl, MD performed more minimally invasive procedures procedures for Medicare patients than 90% of providers in related specialties within Massachusetts.

Top 25%

By Volume:

biopsy

core needle prostate biopsy

prostate punch biopsy

By Affordability:

lab tests

urine tests

In 2012, among providers in related specialties within Massachusetts, Dr. Douglas Middleton Dahl, MD performed more biopsy, core needle prostate biopsy, and prostate punch biopsy procedures for Medicare patients than 75% of them and he also had a list price for lab tests, and urine tests that was lower than the list prices billed to Medicare by 75% of them. 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. Douglas Middleton Dahl, MD treated as an urologic oncologist in Boston, MA during 2012 were urologic procedures, lab tests, minimally invasive procedures and cancer surgery.

Volume of procedures performed by Dr. Douglas Middleton Dahl, MD for Medicare patients.

cancer surgery	21
diagnostic procedures	14
dissection	16
doctor visit	371
excision	16
lab tests	113
lymph node procedures	16
minimally invasive procedures	107
minor procedures	14
pelvic surgery	16
suprapubic catheter replacement	13
urologic procedures	114

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Douglas Middleton Dahl, MD treated as an urologic oncologist in Boston, MA during 2013 were minimally invasive procedures, urologic procedures, lab tests and cancer surgery.

Volume of procedures performed by Dr. Douglas Middleton Dahl, MD for Medicare patients.

cancer surgery	30
diagnostic procedures	19
dissection	25
doctor visit	423
excision	25
lab tests	104
lymph node procedures	25
minimally invasive procedures	129
minor procedures	19
pelvic surgery	25
urologic procedures	124

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Middleton Dahl, MD.

**Gender**
Male	305
Female	52

**Ethnicity**
Non-Hispanic White	324
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	217
From 75 to 84	99
85 and over	25
Less than 65	16

Conditions of Medicare patients treated by Dr. Douglas Middleton Dahl, MD in 2013

Hypertension	61
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	28
Depression	14
Chronic Kidney Disease	41
Asthma	8
Osteoperosis	5
Atrial Fibrilation	15
Heart Failure	11
Chronic Obstructive Pulmonary Disease	4
Diabetes	17
Dementia	5
Cancer	52

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Douglas Middleton Dahl, MD treated as an urologic oncologist in Boston, MA during 2014 were lab tests, minimally invasive procedures, urologic procedures and minor procedures.

Volume of procedures performed by Dr. Douglas Middleton Dahl, MD for Medicare patients.

cancer surgery	26
diagnostic procedures	30
dissection	28
doctor visit	460
excision	28
lab tests	243
lymph node procedures	28
minimally invasive procedures	155
minor procedures	30
pelvic surgery	28
suprapubic catheter replacement	14
urologic procedures	153

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Middleton Dahl, MD.

**Gender**
Male	330
Female	45

**Ethnicity**
Non-Hispanic White	343
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	227
From 75 to 84	105
85 and over	23
Less than 65	20

Conditions of Medicare patients treated by Dr. Douglas Middleton Dahl, MD in 2014

Hypertension	62
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	27
Depression	12
Chronic Kidney Disease	41
Asthma	9
Osteoperosis	4
Atrial Fibrilation	11
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	17
Dementia	4
Cancer	49

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Douglas Middleton Dahl, MD treated as an urologic oncologist in Boston, MA during 2015 were minimally invasive procedures, lab tests, urologic procedures and dissection.

Volume of procedures performed by Dr. Douglas Middleton Dahl, MD for Medicare patients.

cancer surgery	30
diagnostic procedures	24
dissection	31
doctor visit	458
excision	31
lab tests	129
lymph node procedures	31
minimally invasive procedures	139
minor procedures	24
pelvic surgery	31
urologic procedures	108

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Middleton Dahl, MD.

**Gender**
Male	632
Female	102

**Ethnicity**
Non-Hispanic White	678
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	470
From 75 to 84	212
85 and over	28
Less than 65	24

Conditions of Medicare patients treated by Dr. Douglas Middleton Dahl, MD in 2015

Hypertension	59
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	27
Depression	14
Chronic Kidney Disease	41
Asthma	10
Osteoperosis	0
Atrial Fibrilation	10
Heart Failure	8
Chronic Obstructive Pulmonary Disease	5
Diabetes	18
Dementia	0
Cancer	57

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Douglas Middleton Dahl, MD treated as an urologic oncologist in Boston, MA during 2016 were lab tests, minimally invasive procedures, urologic procedures and minor procedures.

Volume of procedures performed by Dr. Douglas Middleton Dahl, MD for Medicare patients.

cancer surgery	28
diagnostic procedures	32
dissection	29
doctor visit	471
excision	29
lab tests	262
lymph node procedures	29
minimally invasive procedures	152
minor procedures	32
pelvic surgery	29
urologic procedures	136

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Middleton Dahl, MD.

**Gender**
Male	325
Female	53

**Ethnicity**
Non-Hispanic White	345
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	242
From 75 to 84	108
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Douglas Middleton Dahl, MD in 2016

Hypertension	58
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	24
Depression	15
Chronic Kidney Disease	40
Asthma	8
Osteoperosis	4
Atrial Fibrilation	12
Heart Failure	8
Chronic Obstructive Pulmonary Disease	5
Diabetes	17
Dementia	0
Cancer	55

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Douglas Middleton Dahl, MD treated as an urologic oncologist in Boston, MA during 2017 were lab tests, minimally invasive procedures, urologic procedures and diagnostic procedures.

Volume of procedures performed by Dr. Douglas Middleton Dahl, MD for Medicare patients.

cancer surgery	41
diagnostic procedures	45
dissection	39
doctor visit	720
excision	39
foreign body removal	11
hospital care	21
inpatient care	21
lab tests	397
lymph node procedures	39
minimally invasive procedures	221
minor procedures	45
pelvic surgery	39
urologic procedures	211

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Middleton Dahl, MD.

**Gender**
Male	467
Female	63

**Ethnicity**
Non-Hispanic White	467
Black	21
Hispanic	0
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	337
From 75 to 84	142
85 and over	23
Less than 65	28

Conditions of Medicare patients treated by Dr. Douglas Middleton Dahl, MD in 2017

Hypertension	65
High Cholesterol	46
Stroke	3
Ischemic Heart Disease	28
Depression	15
Chronic Kidney Disease	40
Asthma	8
Osteoperosis	5
Atrial Fibrilation	13
Heart Failure	8
Chronic Obstructive Pulmonary Disease	5
Diabetes	20
Dementia	4
Cancer	58

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Douglas Middleton Dahl, MD treated as an urologic oncologist in Boston, MA during 2018 were lab tests, minimally invasive procedures, urologic procedures and minor procedures.

Volume of procedures performed by Dr. Douglas Middleton Dahl, MD for Medicare patients.

cancer surgery	48
diagnostic procedures	48
dissection	44
doctor visit	737
excision	44
lab tests	540
lymph node procedures	44
minimally invasive procedures	215
minor procedures	48
pelvic surgery	44
urologic procedures	171

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Middleton Dahl, MD.

**Gender**
Male	459
Female	70

**Ethnicity**
Non-Hispanic White	463
Black	18
Hispanic	0
Asian	0
Other	27
Native American	0

**Age**
From 65 to 74	332
From 75 to 84	154
85 and over	20
Less than 65	23

Conditions of Medicare patients treated by Dr. Douglas Middleton Dahl, MD in 2018

Hypertension	64
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	29
Depression	16
Chronic Kidney Disease	38
Asthma	7
Osteoperosis	5
Atrial Fibrilation	10
Heart Failure	8
Chronic Obstructive Pulmonary Disease	6
Diabetes	17
Dementia	3
Cancer	60

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Douglas Middleton Dahl, MD treated as an urologic oncologist in Boston, MA during 2019 were lab tests, minimally invasive procedures, urologic procedures and minor procedures.

Volume of procedures performed by Dr. Douglas Middleton Dahl, MD for Medicare patients.

blood draw	17
cancer surgery	41
diagnostic procedures	56
dissection	41
doctor visit	777
excision	41
lab tests	556
lymph node procedures	41
minimally invasive procedures	237
minor procedures	56
pelvic surgery	41
urologic procedures	196

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Middleton Dahl, MD.

**Gender**
Male	497
Female	75

**Ethnicity**
Non-Hispanic White	492
Black	23
Hispanic	13
Asian	12
Other	32
Native American	0

**Age**
From 65 to 74	348
From 75 to 84	179
85 and over	29
Less than 65	16

Conditions of Medicare patients treated by Dr. Douglas Middleton Dahl, MD in 2019

Hypertension	62
High Cholesterol	56
Stroke	3
Ischemic Heart Disease	29
Depression	15
Chronic Kidney Disease	41
Asthma	6
Osteoperosis	5
Atrial Fibrilation	9
Heart Failure	7
Chronic Obstructive Pulmonary Disease	6
Diabetes	20
Dementia	3
Cancer	60

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Douglas Middleton Dahl, MD treated as an urologic oncologist in Boston, MA during 2020 were lab tests, minimally invasive procedures, urologic procedures and cancer surgery.

Volume of procedures performed by Dr. Douglas Middleton Dahl, MD for Medicare patients.

blood draw	12
cancer surgery	47
diagnostic procedures	32
dissection	44
doctor visit	441
excision	44
hospital care	13
inpatient care	13
lab tests	189
lymph node procedures	44
minimally invasive procedures	181
minor procedures	32
pelvic surgery	44
urologic procedures	137

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Middleton Dahl, MD.

**Gender**
Male	376
Female	48

**Ethnicity**
Non-Hispanic White	375
Black	0
Hispanic	0
Asian	0
Other	29
Native American	0

**Age**
From 65 to 74	271
From 75 to 84	129
85 and over	13
Less than 65	11

Conditions of Medicare patients treated by Dr. Douglas Middleton Dahl, MD in 2020

Hypertension	58
High Cholesterol	57
Stroke	3
Ischemic Heart Disease	31
Depression	16
Chronic Kidney Disease	41
Asthma	6
Osteoperosis	4
Atrial Fibrilation	11
Heart Failure	9
Chronic Obstructive Pulmonary Disease	5
Diabetes	19
Dementia	4
Cancer	61

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Douglas Middleton Dahl, MD treated as an urologic oncologist in Boston, MA during 2021 were lab tests, urologic procedures, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Douglas Middleton Dahl, MD for Medicare patients.

biological response modifier (BRM) therapy	58
cancer surgery	52
chemotherapy	58
diagnostic procedures	43
dissection	52
doctor visit	461
excision	52
hospital care	22
inpatient care	22
lab tests	286
lymph node procedures	52
minimally invasive procedures	231
minor procedures	43
pelvic surgery	52
urologic procedures	237

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Middleton Dahl, MD.

**Gender**
Male	386
Female	59

**Ethnicity**
Non-Hispanic White	395
Black	0
Hispanic	0
Asian	0
Other	32
Native American	0

**Age**
From 65 to 74	261
From 75 to 84	144
85 and over	24
Less than 65	16

Conditions of Medicare patients treated by Dr. Douglas Middleton Dahl, MD in 2021

Hypertension	64
High Cholesterol	63
Stroke	4
Ischemic Heart Disease	31
Depression	16
Chronic Kidney Disease	47
Asthma	6
Osteoperosis	5
Atrial Fibrilation	13
Heart Failure	11
Chronic Obstructive Pulmonary Disease	5
Diabetes	22
Dementia	7
Cancer	58

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Douglas Middleton Dahl, MD treated as an urologic oncologist in Boston, MA during 2022 were urologic procedures, lab tests, minimally invasive procedures and chemotherapy.

Volume of procedures performed by Dr. Douglas Middleton Dahl, MD for Medicare patients.

biological response modifier (BRM) therapy	76
cancer surgery	38
chemotherapy	76
diagnostic procedures	52
dissection	36
doctor visit	387
excision	36
lab tests	243
lymph node procedures	36
minimally invasive procedures	227
minor procedures	52
pelvic surgery	36
urologic procedures	267

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Douglas Middleton Dahl, MD.

**Gender**
Male	340
Female	49

**Ethnicity**
Non-Hispanic White	333
Black	0
Hispanic	0
Asian	0
Other	34
Native American	0

**Age**
From 65 to 74	240
From 75 to 84	117
85 and over	18
Less than 65	14

Conditions of Medicare patients treated by Dr. Douglas Middleton Dahl, MD in 2022

Hypertension	72
High Cholesterol	74
Stroke	7
Ischemic Heart Disease	25
Depression	12
Chronic Kidney Disease	24
Asthma	10
Osteoperosis	7
Atrial Fibrilation	18
Heart Failure	8
Chronic Obstructive Pulmonary Disease	7
Diabetes	22
Dementia	4
Cancer	75

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Douglas Middleton Dahl, MD for Medicare patients.

The highest averages for the top procedures that Dr. Douglas Middleton Dahl, MD treated as an urologic oncologist in Boston, MA were lab tests, minimally invasive procedures, urologic procedures and chemotherapy.

biological response modifier (BRM) therapy	67
blood draw	14
cancer surgery	36
chemotherapy	67
diagnostic procedures	35
dissection	35
doctor visit	518
excision	35
foreign body removal	11
hospital care	18
inpatient care	18
lab tests	278
lymph node procedures	35
minimally invasive procedures	181
minor procedures	35
pelvic surgery	35
urologic procedures	168

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Douglas Middleton Dahl, MD.

**Gender**
Male	374
Female	56

**Ethnicity**
Black / African American	5
Asian / Pacific Islander	1
Non-Hispanic White	383
Native American / Alaskan Native	0
Hispanic	1
Other	15

**Age**
75 to 84	126
85 and over	18
Less than 65	15
65 to 74	267

Average of Total of Conditions of Medicare patients treated by Dr. Douglas Middleton Dahl, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Douglas Middleton Dahl, MD treated were hypertension, cancer, high cholesterol and chronic kidney disease.

Hypertension	56
High Cholesterol	51
Stroke	1
Ischemic Heart Disease	25
Depression	13
Chronic Kidney Disease	35
Asthma	7
Osteoporosis	4
Heart Failure	7
Chronic Obstructive Pulmonary Disease	5
Diabetes	17
Atrial Fibrillation	11
Dementia	3
Cancer	53

Education & Training

Dr. Douglas Middleton Dahl, MD graduated from Yale School of Medicine. He completed residency at Brigham and Women's Hospital. He is certified by the American Board of Urology and has a state license in Massachusetts.

Medical School: Yale School of Medicine

Residency: Brigham and Women's Hospital

Board Certification: American Board of Urology

Licensed In: Massachusetts

Affiliations & Hospitals

Dr. Douglas Middleton Dahl, MD is associated with these hospitals and organizations:

Newton-Wellesley Hospital

Massachusetts General Hospital

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. Douglas Middleton Dahl, MD appears to accept the following insurance providers: Harvard Pilgrim Health Care, MultiPlan, United Healthcare, Tufts Health Plan, 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. Douglas Middleton Dahl, MD accepts the following insurance providers:

Harvard Pilgrim Health Care

MultiPlan

United Healthcare

Tufts Health Plan

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. Douglas Middleton Dahl, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 50 ratings. We collect ratings and reviews of Dr. Douglas Middleton Dahl, MD from all over the web to help you find the right in Boston, MA.

Overall Rating

(50 Ratings)

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General Payments

These charts describe general payments received by Dr. Douglas Middleton Dahl, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
CIVCO Medical Instruments	$1,000 $1,000
Intuitive Surgical, Inc.	$429 Da Vinci Surgical System $429

**Types of Payments**
Consulting Fee	$1,000
Food and Beverage	$429

Biography

Dr. Douglas Dahl is a specialist in urologic oncology. Dr. Dahl's areas of expertise include brachytherapy (seed implants), testicular cancer, and kidney cancer. Patients gave him an average rating of 5.0 stars (out of 5). He can take several insurance carriers, including Blue California, Coventry, and Viant. He is a graduate of Yale School of Medicine. For his professional training, Dr. Dahl completed a residency program at Brigham and Women's Hospital. He is professionally affiliated with Massachusetts General Hospital and Newton-Wellesley Hospital. According to Newton-Wellesley Hospital, new patients are welcome to contact Dr. Dahl's office in Boston, MA.