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Home > CA Providers > Radiation Oncologists

Dr. Alexander R. Gottschalk, MD, PhD

Accepting New Patients

(199 Ratings)

Specializes in: Physician and Radiation Oncology

University of Chicago, Pritzker School of Medicine

Professional interests include: image-guided radiation therapy (IGRT), radiation therapy, stereotactic body radiation therapy (SBRT), and more.

505 Parnassus Avenue Suite L-75
San Francisco, CA 94143

(415) 353-8900

Dr. Alexander R. Gottschalk, MD, PhD is a physician provider in San Francisco, CA specializing in physician and radiation oncology. He graduated from University of Chicago, Pritzker School of Medicine. Dr. Alexander R. Gottschalk, MD, PhD is affiliated with UCSF Health, Hill Physicians and Radiation Oncology at Mount Zion.

Office Locations

1600 Divisadero Street Basement Level
San Francisco, CA 94115

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1825 4th Street Floor 6
San Francisco, CA 94143

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1825 Fourth Street Sixth Floor
San Francisco, CA 94158

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1600 DIVISADERO STREET
SAN FRANCISCO, CA 94143

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505 Parnassus Avenue Suite L-75
San Francisco, CA 94143

(415) 353-8900

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Some issues Dr. Alexander R. Gottschalk, MD, PhD can help you with:

External Beam Radiation Therapy (EBRT)

External beam radiation therapy (EBRT) is a type of cancer treatment that delivers radiation from outside of the body. The goal of EBRT is to destroy cancer cells and shrink tumors, although it may also be used to alleviate symptoms rather than cure cancer.

EBRT can be delivered through several different methods, which may be combined or used alone. The type and length of treatment vary based on the location of the cancer or tumor and its size. Techniques for EBRT include:

Conventional external beam radiation therapy, which delivers a single beam of radiation from multiple directions. Conventional EBRT is commonly used to treat brain tumors, particularly when the entire brain needs treatment.
Intensity-modulated radiation therapy (IMRT), which uses smaller beams with adjustable intensity levels, so the most intense beams can be directed at the tumor. IMRT is used in several types of cancers, including prostate, gastrointestinal, brain, and lung cancers.
Orthovoltage, which uses low energy X-rays that do not penetrate the skin very deeply. Orthovoltage is typically used for skin cancers or other skin conditions.
Proton therapy, which uses a particle accelerator to deliver positively charged particles (protons) for cancer treatment. Proton beams can be controlled more precisely than X-rays, so there is less risk of damage to healthy tissue. This makes proton therapy a good option for younger patients, as other types of EBRT pose long-term risks such as growth problems and heart disease.
Stereotactic radiosurgery (SRS), which is a non-surgical type of radiation therapy that uses 3-D imaging to directly target tumors and avoid healthy tissue. SRS is often used for small tumors, particularly those in the brain (cranial radiosurgery) and spine (spinal radiosurgery). When performed outside of the brain and spine, it is called stereotactic body radiation therapy (SBRT).

Typically, patients will undergo treatment for five days a week over the course of several weeks, and they should be able to go home the same day. Each session can take less than an hour, with most of the time spent determining proper positioning of the body. Actual delivery of the radiation may only take a few minutes, and patients will wear a lead shield to protect healthy body tissues while receiving their treatment.

EBRT is painless, but it does come with some side effects, such as fatigue. Over the course of the therapy, oncologists will monitor patients' conditions and adjust their dosage, number of sessions, and length of treatment based on their body's response to the radiation.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Volume of procedures performed by Dr. Alexander R. Gottschalk, MD, PhD for Medicare patients.

doctor visit	323

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Alexander R. Gottschalk, MD, PhD treated as a physician provider in San Francisco, CA during 2013 were radiation therapy.

Volume of procedures performed by Dr. Alexander R. Gottschalk, MD, PhD for Medicare patients.

doctor visit	416
radiation therapy	11

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD.

**Gender**
Male	193
Female	55

**Ethnicity**
Non-Hispanic White	161
Black	18
Hispanic	14
Asian	39
Other	0
Native American	0

**Age**
From 65 to 74	136
From 75 to 84	70
85 and over	18
Less than 65	24

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2013

Hypertension	57
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	29
Depression	19
Chronic Kidney Disease	23
Asthma	6
Osteoperosis	0
Atrial Fibrilation	12
Heart Failure	10
Chronic Obstructive Pulmonary Disease	14
Diabetes	21
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Alexander R. Gottschalk, MD, PhD treated as a physician provider in San Francisco, CA during 2014 were radiation therapy.

Volume of procedures performed by Dr. Alexander R. Gottschalk, MD, PhD for Medicare patients.

doctor visit	456
radiation therapy	20

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD.

**Gender**
Male	184
Female	66

**Ethnicity**
Non-Hispanic White	167
Black	19
Hispanic	0
Asian	43
Other	0
Native American	0

**Age**
From 65 to 74	124
From 75 to 84	83
85 and over	24
Less than 65	19

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2014

Hypertension	58
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	30
Depression	17
Chronic Kidney Disease	28
Asthma	10
Osteoperosis	4
Atrial Fibrilation	12
Heart Failure	14
Chronic Obstructive Pulmonary Disease	16
Diabetes	21
Dementia	5
Cancer	75

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Alexander R. Gottschalk, MD, PhD for Medicare patients.

doctor visit	442

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD.

**Gender**
Male	368
Female	126

**Ethnicity**
Non-Hispanic White	342
Black	0
Hispanic	36
Asian	76
Other	0
Native American	0

**Age**
From 65 to 74	260
From 75 to 84	152
85 and over	48
Less than 65	34

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2015

Hypertension	55
High Cholesterol	50
Stroke	6
Ischemic Heart Disease	28
Depression	18
Chronic Kidney Disease	27
Asthma	13
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	15
Diabetes	18
Dementia	4
Cancer	75

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

Volume of procedures performed by Dr. Alexander R. Gottschalk, MD, PhD for Medicare patients.

doctor visit	462

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD.

**Gender**
Male	185
Female	71

**Ethnicity**
Non-Hispanic White	188
Black	0
Hispanic	13
Asian	40
Other	0
Native American	0

**Age**
From 65 to 74	128
From 75 to 84	86
85 and over	23
Less than 65	19

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2016

Hypertension	55
High Cholesterol	48
Stroke	5
Ischemic Heart Disease	29
Depression	20
Chronic Kidney Disease	28
Asthma	19
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	11
Chronic Obstructive Pulmonary Disease	16
Diabetes	20
Dementia	5
Cancer	75

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Dr. Alexander R. Gottschalk, MD, PhD for Medicare patients.

doctor visit	419

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD.

**Gender**
Male	188
Female	63

**Ethnicity**
Non-Hispanic White	173
Black	17
Hispanic	14
Asian	34
Other	13
Native American	0

**Age**
From 65 to 74	102
From 75 to 84	95
85 and over	34
Less than 65	20

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2017

Hypertension	66
High Cholesterol	47
Stroke	6
Ischemic Heart Disease	31
Depression	18
Chronic Kidney Disease	30
Asthma	9
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	20
Diabetes	22
Dementia	8
Cancer	75

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

Volume of procedures performed by Dr. Alexander R. Gottschalk, MD, PhD for Medicare patients.

doctor visit	472

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD.

**Gender**
Male	187
Female	63

**Ethnicity**
Non-Hispanic White	170
Black	16
Hispanic	0
Asian	38
Other	0
Native American	0

**Age**
From 65 to 74	111
From 75 to 84	87
85 and over	33
Less than 65	19

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2018

Hypertension	62
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	29
Depression	17
Chronic Kidney Disease	33
Asthma	6
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	14
Chronic Obstructive Pulmonary Disease	20
Diabetes	22
Dementia	8
Cancer	75

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Volume of procedures performed by Dr. Alexander R. Gottschalk, MD, PhD for Medicare patients.

doctor visit	428

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD.

**Gender**
Male	200
Female	68

**Ethnicity**
Non-Hispanic White	177
Black	22
Hispanic	17
Asian	37
Other	15
Native American	0

**Age**
From 65 to 74	116
From 75 to 84	102
85 and over	33
Less than 65	17

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2019

Hypertension	60
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	31
Depression	21
Chronic Kidney Disease	35
Asthma	6
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	15
Chronic Obstructive Pulmonary Disease	21
Diabetes	25
Dementia	9
Cancer	75

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Alexander R. Gottschalk, MD, PhD for Medicare patients.

doctor visit	285

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD.

**Gender**
Male	149
Female	66

**Ethnicity**
Non-Hispanic White	145
Black	15
Hispanic	0
Asian	35
Other	0
Native American	0

**Age**
From 65 to 74	93
From 75 to 84	94
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2020

Hypertension	65
High Cholesterol	52
Stroke	0
Ischemic Heart Disease	33
Depression	20
Chronic Kidney Disease	32
Asthma	6
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	13
Chronic Obstructive Pulmonary Disease	23
Diabetes	23
Dementia	6
Cancer	75

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Alexander R. Gottschalk, MD, PhD for Medicare patients.

doctor visit	310

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD.

**Gender**
Male	142
Female	72

**Ethnicity**
Non-Hispanic White	142
Black	14
Hispanic	11
Asian	35
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	93
85 and over	19
Less than 65	13

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2021

Hypertension	59
High Cholesterol	50
Stroke	5
Ischemic Heart Disease	29
Depression	20
Chronic Kidney Disease	32
Asthma	0
Osteoperosis	14
Atrial Fibrilation	9
Heart Failure	18
Chronic Obstructive Pulmonary Disease	22
Diabetes	20
Dementia	10
Cancer	75

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Alexander R. Gottschalk, MD, PhD for Medicare patients.

doctor visit	411

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD.

**Gender**
Male	136
Female	85

**Ethnicity**
Non-Hispanic White	148
Black	13
Hispanic	13
Asian	33
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	97
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2022

Hypertension	66
High Cholesterol	69
Stroke	6
Ischemic Heart Disease	24
Depression	24
Chronic Kidney Disease	20
Asthma	14
Osteoperosis	20
Atrial Fibrilation	18
Heart Failure	16
Chronic Obstructive Pulmonary Disease	27
Diabetes	22
Dementia	6
Cancer	75

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Alexander R. Gottschalk, MD, PhD treated as a physician provider in San Francisco, CA during 2023 were radiation therapy.

Volume of procedures performed by Dr. Alexander R. Gottschalk, MD, PhD for Medicare patients.

doctor visit	424
radiation therapy	18

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD.

**Gender**
Male	175
Female	74

**Ethnicity**
Non-Hispanic White	179
Black	0
Hispanic	19
Asian	30
Other	0
Native American	0

**Age**
From 65 to 74	126
From 75 to 84	88
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2023

Hypertension	64
High Cholesterol	70
Stroke	8
Ischemic Heart Disease	28
Depression	16
Chronic Kidney Disease	23
Asthma	9
Osteoperosis	16
Atrial Fibrilation	18
Heart Failure	13
Chronic Obstructive Pulmonary Disease	21
Diabetes	26
Dementia	5
Cancer	75

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Alexander R. Gottschalk, MD, PhD treated as a physician provider in San Francisco, CA during 2024 were radiation therapy.

Volume of procedures performed by Dr. Alexander R. Gottschalk, MD, PhD for Medicare patients.

doctor visit	498
radiation therapy	36

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD.

**Gender**
Male	198
Female	98

**Ethnicity**
Non-Hispanic White	203
Black	0
Hispanic	18
Asian	45
Other	15
Native American	0

**Age**
From 65 to 74	132
From 75 to 84	126
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2024

Hypertension	69
High Cholesterol	73
Stroke	12
Ischemic Heart Disease	30
Depression	17
Chronic Kidney Disease	28
Asthma	10
Osteoperosis	18
Atrial Fibrilation	18
Heart Failure	17
Chronic Obstructive Pulmonary Disease	22
Diabetes	28
Dementia	4
Cancer	75

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Alexander R. Gottschalk, MD, PhD for Medicare patients.

The highest averages for the top procedures that Dr. Alexander R. Gottschalk, MD, PhD treated as a physician provider in San Francisco, CA were radiation therapy.

doctor visit	411
radiation therapy	21

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD.

**Gender**
Female	69
Male	177

**Ethnicity**
Black / African American	10
Asian / Pacific Islander	37
Non-Hispanic White	168
Hispanic	11
Native American / Alaskan Native	0
Other	3

**Age**
85 and over	17
75 to 84	90
Less than 65	12
65 to 74	115

Average of Total of Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Alexander R. Gottschalk, MD, PhD treated were cancer, hypertension, high cholesterol and ischemic heart disease.

Hypertension	56
High Cholesterol	49
Stroke	3
Ischemic Heart Disease	27
Depression	17
Chronic Kidney Disease	26
Asthma	8
Osteoporosis	9
Heart Failure	13
Chronic Obstructive Pulmonary Disease	18
Diabetes	20
Atrial Fibrillation	12
Dementia	5
Cancer	69

Education & Training

Dr. Alexander R. Gottschalk, MD, PhD graduated from University of Chicago, Pritzker School of Medicine. He completed residency at University of California, San Francisco (UCSF) Affiliated Hospitals. He is certified by the Board certification: Radiation Oncology, American Board of Radiology/Interventional & Diagnostic Radiology and has a state license in California.

Medical School: University of Chicago, Pritzker School of Medicine

Residency: University of California, San Francisco (UCSF) Affiliated Hospitals

Board Certification: Board certification: Radiation Oncology, American Board of Radiology/Interventional & Diagnostic Radiology

Licensed In: California

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. Alexander R. Gottschalk, MD, PhD appears to accept the following insurance providers: Cigna, Aetna, Blue Shield of California, SCAN Health Plan, Anthem, UnitedHealthcare, Health Net, Hill Physicians Care Solutions, Central Health Plan, CCHP Health Plan (Chinese Community Health Plan) and Canopy Health.

Insurance Accepted by Provider includes:

According to our sources, Dr. Alexander R. Gottschalk, MD, PhD accepts the following insurance providers:

Cigna

Aetna

Blue Shield of California

SCAN Health Plan

Anthem

UnitedHealthcare

Health Net

Hill Physicians Care Solutions

Central Health Plan

CCHP Health Plan (Chinese Community Health Plan)

Canopy Health

Ratings & Reviews

Dr. Alexander R. Gottschalk, MD, PhD has an exceptional overall rating with an average of 4.9 out of 5 stars based on 199 ratings. We collect ratings and reviews of Dr. Alexander R. Gottschalk, MD, PhD from all over the web to help you find the right in San Francisco, CA.

4.9

Overall Rating

(199 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2026-06-21

Patient verified via Press Ganey

Dr G is the best. So easy and comfortable to talk to. He always listens and makes me feel valued as a person. I wouldn't want anybody else to guide me thru these cancer problems. I trust him completely.

Overall Rating: 5.0 2025-10-13

Patient verified via Press Ganey

Very happy to be under the excellent care of Dr. Gottschalk

Overall Rating: 5.0 2025-05-10

Patient verified via Press Ganey

Dr. Gottschalk is very good. I would highly recommend

General Payments

These charts describe general payments received by Dr. Alexander R. Gottschalk, MD, PhD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Accuray Incorporated	$5,110 CyberKnife System $5,110
Boston Scientific Corporation	$402 SpaceOAR System $293	GENERAL THERAPIES $109
Augmenix, Inc.	$340 SpaceOAR $340
BIOPROTECT MEDICAL, INC.	$204 BioProtect Balloon Implant System $204
VIEWRAY TECHNOLOGIES INC	$173 MRIdian LINAC $173
Other	$378 LIBTAYO $132	ProteusOne $24	$223

**Types of Payments**
Honoraria	$5,035
Food and Beverage	$1,572

Biography

Dr Alexander Gottschalk, an expert in radiation treatment, specializes in caring for patients with lung cancer, prostate cancer and sarcoma. He directs UCSF's program in CyberKnife surgery, in which a flexible robotic arm is used to precisely deliver high doses of radiation. He uses CyberKnife and other forms of stereotactic body radiation therapy to treat cancers of the lung or prostate, as well as cancer that has spread to the bones or lymph nodes. Gottschalk earned both his medical degree and doctorate in pathology at the University of Chicago. He completed a residency in radiation oncology at UCSF.

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Dr. Alexander R. Gottschalk, MD, PhD

Office Locations

Some issues Dr. Alexander R. Gottschalk, MD, PhD can help you with:

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. Alexander R. Gottschalk, MD, PhD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD in 2024

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Average Medicare Patient Data From 2012 - 2024

Average of Total of Conditions of Medicare patients treated by Dr. Alexander R. Gottschalk, MD, PhD From 2012 - 2024

Education & Training

Insurance Information

Ratings & Reviews

General Payments

Biography

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