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Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD

Accepting New Patients

(Dr. Rochelle S. Zak, MD)

(245 Ratings)

Specializes in: General Practice, Pulmonology (Lung & Respiratory Disease), Neurology (Brain & Spinal Cord Disease) and Sleep Medicine

University of California, Los Angeles (UCLA), David Geffen School of Medicine

Professional interests include: sleep apnea, sleep disorders, chronic bronchitis

2330 Post Street Suite 420 UCSF Sleep Disorders Center
San Francisco, CA 94115

(415) 885-7886

Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD is a general practitioner in San Francisco, CA specializing in general practice, pulmonology (lung & respiratory disease), neurology (brain & spinal cord disease) and sleep medicine. She graduated from University of California, Los Angeles (UCLA), David Geffen School of Medicine. Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD is affiliated with UCSF Health, Hill Physicians and Sleep Disorders Center.

Office Locations

2330 Post Street Suite 420 UCSF Sleep Disorders Center
San Francisco, CA 94115

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2330 Post Street Suite 420
San Francisco, CA 94115

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In The News

“Sleepy kids don't necessarily yawn,'' said Dr. Rochelle Zak, a neurology instructor at New York Presbyterian Hospital. ''”—"Restless Night, Hard School Day: A Bedtime Story (Published 2002)", New York Times, January 2002

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD treated as a general practitioner in San Francisco, CA during 2012 were sleep study.

Volume of procedures performed by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD for Medicare patients.

doctor visit	49
sleep study	20

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD treated as a general practitioner in San Francisco, CA during 2013 were sleep study and airway management.

Volume of procedures performed by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD for Medicare patients.

airway management	11
doctor visit	80
sleep study	33

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD.

**Gender**
Male	28
Female	31

**Ethnicity**
Non-Hispanic White	38
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	27
From 75 to 84	0
85 and over	0
Less than 65	14

Conditions of Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD in 2013

Hypertension	64
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	25
Depression	41
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	24
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD treated as a general practitioner in San Francisco, CA during 2014 were sleep study and airway management.

Volume of procedures performed by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD for Medicare patients.

airway management	15
doctor visit	85
sleep study	34

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD.

**Gender**
Male	37
Female	32

**Ethnicity**
Non-Hispanic White	45
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	34
From 75 to 84	0
85 and over	0
Less than 65	16

Conditions of Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD in 2014

Hypertension	58
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	29
Depression	30
Chronic Kidney Disease	23
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	28
Dementia	20
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD treated as a general practitioner in San Francisco, CA during 2015 were sleep study.

Volume of procedures performed by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD for Medicare patients.

doctor visit	89
sleep study	15

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD.

**Gender**
Male	78
Female	64

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

**Age**
From 65 to 74	72
From 75 to 84	30
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD in 2015

Hypertension	59
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	30
Depression	35
Chronic Kidney Disease	23
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	17
Chronic Obstructive Pulmonary Disease	0
Diabetes	28
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD treated as a general practitioner in San Francisco, CA during 2016 were sleep study and airway management.

Volume of procedures performed by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD for Medicare patients.

airway management	13
doctor visit	99
sleep study	38

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD.

**Gender**
Male	45
Female	27

**Ethnicity**
Non-Hispanic White	54
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	38
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD in 2016

Hypertension	64
High Cholesterol	71
Stroke	0
Ischemic Heart Disease	29
Depression	22
Chronic Kidney Disease	25
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	28
Dementia	17
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD treated as a general practitioner in San Francisco, CA during 2017 were sleep study and airway management.

Volume of procedures performed by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD for Medicare patients.

airway management	15
doctor visit	114
sleep study	45

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD.

**Gender**
Male	45
Female	43

**Ethnicity**
Non-Hispanic White	65
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	43
From 75 to 84	19
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD in 2017

Hypertension	55
High Cholesterol	40
Stroke	0
Ischemic Heart Disease	24
Depression	42
Chronic Kidney Disease	23
Asthma	0
Osteoperosis	0
Atrial Fibrilation	15
Heart Failure	15
Chronic Obstructive Pulmonary Disease	0
Diabetes	23
Dementia	18
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD treated as a general practitioner in San Francisco, CA during 2018 were sleep study and airway management.

Volume of procedures performed by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD for Medicare patients.

airway management	20
doctor visit	177
sleep study	69

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD.

**Gender**
Male	79
Female	59

**Ethnicity**
Non-Hispanic White	93
Black	0
Hispanic	0
Asian	15
Other	13
Native American	0

**Age**
From 65 to 74	69
From 75 to 84	41
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD in 2018

Hypertension	58
High Cholesterol	58
Stroke	8
Ischemic Heart Disease	30
Depression	31
Chronic Kidney Disease	27
Asthma	12
Osteoperosis	0
Atrial Fibrilation	22
Heart Failure	14
Chronic Obstructive Pulmonary Disease	12
Diabetes	25
Dementia	13
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD treated as a general practitioner in San Francisco, CA during 2019 were sleep study and airway management.

Volume of procedures performed by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD for Medicare patients.

airway management	45
doctor visit	301
sleep study	118

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD.

**Gender**
Male	104
Female	100

**Ethnicity**
Non-Hispanic White	132
Black	20
Hispanic	15
Asian	25
Other	12
Native American	0

**Age**
From 65 to 74	104
From 75 to 84	58
85 and over	11
Less than 65	31

Conditions of Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD in 2019

Hypertension	63
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	31
Depression	35
Chronic Kidney Disease	29
Asthma	10
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	18
Chronic Obstructive Pulmonary Disease	10
Diabetes	29
Dementia	7
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD treated as a general practitioner in San Francisco, CA during 2020 were sleep study and airway management.

Volume of procedures performed by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD for Medicare patients.

airway management	20
doctor visit	301
sleep study	67

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD.

**Gender**
Male	118
Female	106

**Ethnicity**
Non-Hispanic White	146
Black	18
Hispanic	15
Asian	29
Other	16
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	56
85 and over	12
Less than 65	33

Conditions of Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD in 2020

Hypertension	58
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	25
Depression	35
Chronic Kidney Disease	24
Asthma	10
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	23
Dementia	10
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD treated as a general practitioner in San Francisco, CA during 2021 were sleep study and airway management.

Volume of procedures performed by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD for Medicare patients.

airway management	23
doctor visit	336
sleep study	62

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD.

**Gender**
Male	110
Female	103

**Ethnicity**
Non-Hispanic White	145
Black	0
Hispanic	0
Asian	29
Other	21
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	61
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD in 2021

Hypertension	55
High Cholesterol	55
Stroke	6
Ischemic Heart Disease	26
Depression	34
Chronic Kidney Disease	24
Asthma	11
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	9
Diabetes	23
Dementia	6
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD treated as a general practitioner in San Francisco, CA during 2022 were sleep study and airway management.

Volume of procedures performed by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD for Medicare patients.

airway management	19
doctor visit	334
sleep study	60

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD.

**Gender**
Male	114
Female	113

**Ethnicity**
Non-Hispanic White	159
Black	12
Hispanic	11
Asian	26
Other	19
Native American	0

**Age**
From 65 to 74	118
From 75 to 84	79
85 and over	11
Less than 65	19

Conditions of Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD in 2022

Hypertension	60
High Cholesterol	67
Stroke	7
Ischemic Heart Disease	20
Depression	29
Chronic Kidney Disease	19
Asthma	16
Osteoperosis	15
Atrial Fibrilation	21
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	19
Dementia	8
Cancer	20

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD for Medicare patients.

The highest averages for the top procedures that Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD treated as a general practitioner in San Francisco, CA were sleep study and airway management.

airway management	20
doctor visit	178
sleep study	51

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD.

**Gender**
Male	68
Female	61

**Ethnicity**
Black / African American	4
Asian / Pacific Islander	11
Non-Hispanic White	88
Native American / Alaskan Native	0
Hispanic	3
Other	7

**Age**
75 to 84	33
85 and over	3
Less than 65	10
65 to 74	68

Average of Total of Conditions of Medicare patients treated by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD treated were hypertension, high cholesterol, depression and ischemic heart disease.

Hypertension	54
High Cholesterol	50
Stroke	1
Ischemic Heart Disease	24
Depression	30
Chronic Kidney Disease	19
Asthma	5
Osteoporosis	3
Heart Failure	10
Chronic Obstructive Pulmonary Disease	4
Diabetes	22
Atrial Fibrillation	9
Dementia	9
Cancer	6

Education & Training

Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD graduated from University of California, Los Angeles (UCLA), David Geffen School of Medicine. She completed residency at New York-Presbyterian Hospital. She is certified by the American Board of Psychiatry and Neurology., Neurology and has a state license in Connecticut.

Medical School: University of California, Los Angeles (UCLA), David Geffen School of Medicine

Residency: New York-Presbyterian Hospital

Board Certification: American Board of Psychiatry and Neurology., Neurology

Licensed In: Connecticut

Affiliations & Hospitals

Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD is associated with these hospitals and organizations:

UCSF Health

Hill Physicians

Sleep Disorders Center

Ratings & Reviews

Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD has an exceptional overall rating with an average of 4.91 out of 5 stars based on 245 ratings. We collect ratings and reviews of Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD from all over the web to help you find the right in San Francisco, CA.

4.91

Overall Rating

(245 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2025-07-12

Patient verified via Press Ganey

Dr. Zak is exceptionally good in every aspect of medical care. She truly cares about the state of patient and how to resolve the sickness. I would recommend her 100%.

Overall Rating: 5.0 2025-11-26

Patient verified via Press Ganey

Dr. Zak is superb.

Overall Rating: 5.0 2025-12-04

Patient verified via Press Ganey

All is Great

General Payments

These charts describe general payments received by Dr. Rochelle S. Zak, Sleep Medicine | Pulmonology, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
COMSORT, Inc	$75 MK-4305 $75
Harmony Biosciences LLC	$45 Wakix $45

**Types of Payments**
Consulting Fee	$75
Education	$45

Biography

Dr. Rochelle Zak's specialties are general practice, pulmonology (lung & respiratory disease), and neurology (brain & spinal cord disease). Dr. Zak attended medical school at the University of California, Los Angeles (UCLA), David Geffen School of Medicine. She completed her residency training at New York-Presbyterian Hospital, St. Luke's-Roosevelt Hospital Center, and New York Hospital. Her areas of expertise consist of sleep apnea and chronic bronchitis. On average, patients gave her a rating of 5.0 stars (out of 5). Dr. Zak is professionally affiliated with UCSF Medical Group, Hill Physicians, and Regents of the University of California. She welcomes new patients at her office inSan Francisco, CA as reported by Doctor.com.