Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > MA Providers > Sleep Doctors & Specialists

Dr. Daniel J. Sak, DO

Accepting New Patients

(1 Rating)

Specializes in: Adult Pulmonology and Sleep Medicine

Michigan State University College of Osteopathic Medicine (1978)

759 Chestnut Street
Springfield, MA 01199

(413) 794-5600

Dr. Daniel J. Sak, DO is a pulmonologist in Springfield, MA specializing in adult pulmonology and sleep medicine. He graduated from Michigan State University College of Osteopathic Medicine in 1978 and has 48 years of experience. Dr. Daniel J. Sak, DO is affiliated with Baystate Health and Baystate Sleep Medicine.

Office Locations

759 Chestnut Street
Springfield, MA 01199

open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Daniel J. Sak, DO in 2023

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

Top 5%

By Affordability:

airway management

CPAP treatment

diagnostic sleep study

home sleep study

in-lab polysomnography

in-lab sleep study

polysomnography

sleep study with CPAP

In 2023, Dr. Daniel J. Sak, DO had a list price for airway management, CPAP treatment, diagnostic (regular) sleep study, home sleep study, in-lab polysomnography (overnight sleep study), in-lab sleep study, polysomnography (PSG), and sleep study with CPAP 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.

Top 10%

By Volume:

in-lab polysomnography

sleep study

By Affordability:

cardiorespiratory sleep study

home cardiorespiratory sleep study

sleep study

In 2023, among providers in related specialties within Massachusetts, Dr. Daniel J. Sak, DO performed more in-lab polysomnography (overnight sleep study), and sleep study procedures for Medicare patients than 90% of them and he also had a list price for cardiorespiratory (type 3) sleep study, home cardiorespiratory (type 3) sleep study, and sleep study that was lower than the list prices billed to Medicare by 90% 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 25%

By Volume:

sleep study with CPAP

In 2012, Dr. Daniel J. Sak, DO performed more sleep study with CPAP procedures for Medicare patients than 75% of providers in related specialties within Massachusetts.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Daniel J. Sak, DO treated as a pulmonologist in Springfield, MA during 2012 were sleep study, hospital care, inpatient care and airway management.

Volume of procedures performed by Dr. Daniel J. Sak, DO for Medicare patients.

airway management	102
doctor visit	808
hospital care	169
inpatient care	169
sleep study	199

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Daniel J. Sak, DO treated as a pulmonologist in Springfield, MA during 2013 were sleep study, airway management, hospital care and inpatient care.

Volume of procedures performed by Dr. Daniel J. Sak, DO for Medicare patients.

airway management	143
doctor visit	766
hospital care	85
inpatient care	85
sleep study	236

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel J. Sak, DO.

**Gender**
Male	341
Female	304

**Ethnicity**
Non-Hispanic White	538
Black	73
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	306
From 75 to 84	171
85 and over	44
Less than 65	124

Conditions of Medicare patients treated by Dr. Daniel J. Sak, DO in 2013

Hypertension	75
High Cholesterol	68
Stroke	6
Ischemic Heart Disease	57
Depression	27
Chronic Kidney Disease	32
Asthma	18
Osteoperosis	4
Atrial Fibrilation	18
Heart Failure	34
Chronic Obstructive Pulmonary Disease	26
Diabetes	54
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Daniel J. Sak, DO treated as a pulmonologist in Springfield, MA during 2014 were sleep study and airway management.

Volume of procedures performed by Dr. Daniel J. Sak, DO for Medicare patients.

airway management	74
doctor visit	427
sleep study	149

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel J. Sak, DO.

**Gender**
Male	178
Female	161

**Ethnicity**
Non-Hispanic White	318
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	179
From 75 to 84	0
85 and over	0
Less than 65	83

Conditions of Medicare patients treated by Dr. Daniel J. Sak, DO in 2014

Hypertension	75
High Cholesterol	65
Stroke	4
Ischemic Heart Disease	37
Depression	35
Chronic Kidney Disease	26
Asthma	15
Osteoperosis	4
Atrial Fibrilation	16
Heart Failure	20
Chronic Obstructive Pulmonary Disease	23
Diabetes	49
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Daniel J. Sak, DO treated as a pulmonologist in Springfield, MA during 2015 were sleep study and airway management.

Volume of procedures performed by Dr. Daniel J. Sak, DO for Medicare patients.

airway management	83
doctor visit	470
sleep study	160

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel J. Sak, DO.

**Gender**
Male	430
Female	338

**Ethnicity**
Non-Hispanic White	732
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	424
From 75 to 84	166
85 and over	22
Less than 65	156

Conditions of Medicare patients treated by Dr. Daniel J. Sak, DO in 2015

Hypertension	75
High Cholesterol	66
Stroke	6
Ischemic Heart Disease	35
Depression	38
Chronic Kidney Disease	25
Asthma	21
Osteoperosis	4
Atrial Fibrilation	15
Heart Failure	17
Chronic Obstructive Pulmonary Disease	21
Diabetes	45
Dementia	4
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Daniel J. Sak, DO treated as a pulmonologist in Springfield, MA during 2016 were sleep study and airway management.

Volume of procedures performed by Dr. Daniel J. Sak, DO for Medicare patients.

airway management	99
doctor visit	488
sleep study	178

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel J. Sak, DO.

**Gender**
Male	230
Female	174

**Ethnicity**
Non-Hispanic White	382
Black	0
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	233
From 75 to 84	88
85 and over	14
Less than 65	69

Conditions of Medicare patients treated by Dr. Daniel J. Sak, DO in 2016

Hypertension	75
High Cholesterol	67
Stroke	7
Ischemic Heart Disease	33
Depression	34
Chronic Kidney Disease	26
Asthma	22
Osteoperosis	0
Atrial Fibrilation	17
Heart Failure	16
Chronic Obstructive Pulmonary Disease	17
Diabetes	47
Dementia	3
Cancer	7

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Daniel J. Sak, DO treated as a pulmonologist in Springfield, MA during 2017 were sleep study and airway management.

Volume of procedures performed by Dr. Daniel J. Sak, DO for Medicare patients.

airway management	87
doctor visit	368
sleep study	196

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel J. Sak, DO.

**Gender**
Male	167
Female	153

**Ethnicity**
Non-Hispanic White	305
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	178
From 75 to 84	75
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Daniel J. Sak, DO in 2017

Hypertension	74
High Cholesterol	57
Stroke	5
Ischemic Heart Disease	32
Depression	34
Chronic Kidney Disease	28
Asthma	13
Osteoperosis	0
Atrial Fibrilation	13
Heart Failure	16
Chronic Obstructive Pulmonary Disease	15
Diabetes	42
Dementia	6
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Daniel J. Sak, DO treated as a pulmonologist in Springfield, MA during 2018 were sleep study and airway management.

Volume of procedures performed by Dr. Daniel J. Sak, DO for Medicare patients.

airway management	66
doctor visit	390
sleep study	201

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel J. Sak, DO.

**Gender**
Male	165
Female	130

**Ethnicity**
Non-Hispanic White	277
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	176
From 75 to 84	74
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Daniel J. Sak, DO in 2018

Hypertension	75
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	31
Depression	32
Chronic Kidney Disease	29
Asthma	9
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	37
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Daniel J. Sak, DO treated as a pulmonologist in Springfield, MA during 2019 were sleep study and airway management.

Volume of procedures performed by Dr. Daniel J. Sak, DO for Medicare patients.

airway management	71
doctor visit	384
sleep study	197

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel J. Sak, DO.

**Gender**
Male	197
Female	150

**Ethnicity**
Non-Hispanic White	324
Black	0
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	211
From 75 to 84	74
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Daniel J. Sak, DO in 2019

Hypertension	75
High Cholesterol	71
Stroke	7
Ischemic Heart Disease	30
Depression	36
Chronic Kidney Disease	26
Asthma	10
Osteoperosis	5
Atrial Fibrilation	16
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	40
Dementia	6
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Daniel J. Sak, DO treated as a pulmonologist in Springfield, MA during 2020 were sleep study and airway management.

Volume of procedures performed by Dr. Daniel J. Sak, DO for Medicare patients.

airway management	41
doctor visit	176
sleep study	133

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel J. Sak, DO.

**Gender**
Male	180
Female	145

**Ethnicity**
Non-Hispanic White	304
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	181
From 75 to 84	76
85 and over	15
Less than 65	53

Conditions of Medicare patients treated by Dr. Daniel J. Sak, DO in 2020

Hypertension	74
High Cholesterol	67
Stroke	6
Ischemic Heart Disease	33
Depression	35
Chronic Kidney Disease	28
Asthma	12
Osteoperosis	5
Atrial Fibrilation	21
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	38
Dementia	0
Cancer	6

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Daniel J. Sak, DO treated as a pulmonologist in Springfield, MA during 2021 were sleep study and airway management.

Volume of procedures performed by Dr. Daniel J. Sak, DO for Medicare patients.

airway management	57
doctor visit	294
sleep study	213

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel J. Sak, DO.

**Gender**
Male	196
Female	170

**Ethnicity**
Non-Hispanic White	336
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	232
From 75 to 84	79
85 and over	15
Less than 65	40

Conditions of Medicare patients treated by Dr. Daniel J. Sak, DO in 2021

Hypertension	75
High Cholesterol	65
Stroke	3
Ischemic Heart Disease	30
Depression	32
Chronic Kidney Disease	35
Asthma	9
Osteoperosis	4
Atrial Fibrilation	16
Heart Failure	19
Chronic Obstructive Pulmonary Disease	16
Diabetes	39
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Daniel J. Sak, DO treated as a pulmonologist in Springfield, MA during 2022 were sleep study and airway management.

Volume of procedures performed by Dr. Daniel J. Sak, DO for Medicare patients.

airway management	56
doctor visit	422
sleep study	221

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Daniel J. Sak, DO.

**Gender**
Male	276
Female	192

**Ethnicity**
Non-Hispanic White	436
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	276
From 75 to 84	129
85 and over	18
Less than 65	45

Conditions of Medicare patients treated by Dr. Daniel J. Sak, DO in 2022

Hypertension	75
High Cholesterol	70
Stroke	7
Ischemic Heart Disease	27
Depression	30
Chronic Kidney Disease	23
Asthma	12
Osteoperosis	6
Atrial Fibrilation	27
Heart Failure	18
Chronic Obstructive Pulmonary Disease	18
Diabetes	40
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Daniel J. Sak, DO for Medicare patients.

The highest averages for the top procedures that Dr. Daniel J. Sak, DO treated as a pulmonologist in Springfield, MA were sleep study, hospital care, inpatient care and airway management.

airway management	79
doctor visit	453
hospital care	127
inpatient care	127
sleep study	189

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Daniel J. Sak, DO.

**Gender**
Male	214
Female	174

**Ethnicity**
Black / African American	6
Asian / Pacific Islander	0
Non-Hispanic White	359
Native American / Alaskan Native	0
Hispanic	1
Other	2

**Age**
75 to 84	84
85 and over	11
Less than 65	51
65 to 74	217

Average of Total of Conditions of Medicare patients treated by Dr. Daniel J. Sak, DO From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Daniel J. Sak, DO treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	68
High Cholesterol	60
Stroke	4
Ischemic Heart Disease	31
Depression	30
Chronic Kidney Disease	25
Asthma	12
Osteoporosis	3
Heart Failure	16
Chronic Obstructive Pulmonary Disease	16
Diabetes	39
Atrial Fibrillation	15
Dementia	4
Cancer	8

Education & Training

Dr. Daniel J. Sak, DO graduated from Michigan State University College of Osteopathic Medicine in 1978. He completed residency at University of Michigan Affiliated Hospitals. He is certified by the Sleep Medicine, American Board of Internal Medicine and has a state license in Ohio.

Medical School: Michigan State University College of Osteopathic Medicine (1978)

Residency: University of Michigan Affiliated Hospitals (1982)

Board Certification: Sleep Medicine, American Board of Internal Medicine

Licensed In: Ohio

Affiliations & Hospitals

Dr. Daniel J. Sak, DO is associated with these hospitals and organizations:

Baystate Health

Baystate Sleep Medicine

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 J. Sak, DO appears to accept the following insurance providers: Harvard Pilgrim Health Care, Blue Cross Blue Shield HMO, Tufts Health Plan, United Healthcare, Aetna, Unicare, TRICARE, Medicare, Medicaid, Cigna, Railroad Medicare, ConnectiCare, First Health, Private Healthcare Systems (PHCS), NORTHEAST DIRECT, BLUE SHIELD MEDICARE ADV, SERENITY CARE PACE, BMC HEALTHNET ACO, FALLON NON MASS HEALTH, COMMONWEALTH CARE ALLIANCE, HNE BE HEALTHY PARTNERSHIP, CONSOLIDATED, SENIOR WHOLE HEALTH, BLUE SHIELD PPO IND, HEALTH NEW ENGLAND EXCLUDING BE HEALTHY, BMC HEALTHNET MCO and FALLON ACO.

Insurance Accepted by Provider includes:

According to our sources, Dr. Daniel J. Sak, DO accepts the following insurance providers:

Harvard Pilgrim Health Care

Blue Cross Blue Shield HMO

Tufts Health Plan

United Healthcare

Aetna

Unicare

TRICARE

Medicare

Medicaid

Cigna

Railroad Medicare

ConnectiCare

First Health

Private Healthcare Systems (PHCS)

NORTHEAST DIRECT

BLUE SHIELD MEDICARE ADV

SERENITY CARE PACE

BMC HEALTHNET ACO

FALLON NON MASS HEALTH

COMMONWEALTH CARE ALLIANCE

HNE BE HEALTHY PARTNERSHIP

CONSOLIDATED

SENIOR WHOLE HEALTH

BLUE SHIELD PPO IND

HEALTH NEW ENGLAND EXCLUDING BE HEALTHY

BMC HEALTHNET MCO

FALLON ACO

Ratings & Reviews

Dr. Daniel J. Sak, DO has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Daniel J. Sak, DO from all over the web to help you find the right in Springfield, MA.

Overall Rating

(1 Rating)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 5.0 2018-04-05

Sure do miss Dr.Sak... wish he was still in the area.

General Payments

These charts describe general payments received by Dr. Daniel J. Sak, DO. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Inspire Medical Systems, Inc.	$375 Inspire Upper Airway Stimulation System $316	Inspire $59
Harmony Biosciences LLC	$43 Wakix $43
Resmed Corp	$31 AIR 11 $31
Jazz Pharmaceuticals Inc.	$19 XYWAV $19
Philips Electronics North America Corporation	$15 (2547) Sleep Other $15
Other	$21 Prolastin-C $10	Brovana $10

**Types of Payments**
Food and Beverage	$503

Biography

Dr. Daniel Sak is a physician who specializes in sleep medicine and adult pulmonology. ConnectiCare, Blue California, and Coventry seem to be the insurance carriers that Dr. Sak accepts. His education and training includes medical school at Michigan State University College of Osteopathic Medicine and residency at a hospital affiliated with the University of Michigan. Dr. Sak is affiliated with Baystate Health. According to Doctor.com, new patients are welcome to contact Dr. Sak's office in Springfield, MA.