i
Loading Page
loading, please wait

Select Year:

Home > CA Providers > General Practitioners
placeholder image of provider

Dr. Masato Nagao, MD, PhD

Accepting New Patients
(Dr. Masato Nagao, MD, PhD)
Specializes in: General Practice and Physiatry (Physical Medicine & Rehabilitation)
38690 Stivers Street Suite A
Fremont, CA 94536

Dr. Masato Nagao, MD, PhD is a general practitioner in SAN FRANCISCO, CA specializing in general practice and physiatry (physical medicine & rehabilitation). Dr. Masato Nagao, MD, PhD is affiliated with UCSF Health, Washington Hospital Healthcare System, Hill Physicians and Electromyography Clinic at the Orthopaedic Institute.

View Doctor's Full Profile (510) 248-1040

Office Locations

1500 OWENS STREET
SAN FRANCISCO, CA 94158
open_in_new
225 Jackson Avenue Tower 1, Second Floor
San Jose, CA 95116
open_in_new
38690 Stivers Street Suite A
Fremont, CA 94536
(510) 248-1040
open_in_new
2540 23rd Street Building 7, 2nd Floor
San Francisco, CA 94110
open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Masato Nagao, MD, PhD in 2024

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

Top 10%

By Affordability:

diagnostic procedures
electrodiagnostic testing
electrophysiological study

In 2024, Dr. Masato Nagao, MD, PhD had a list price for diagnostic procedures, electrodiagnostic testing, and electrophysiological (EP) study that was lower than the list prices billed to Medicare by 90% of providers in related specialties within California. 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 Affordability:

epidural nerve block
epidural nerve block with local anesthetic
epidural steroid injection
lumbar selective nerve root block
lumbar transforaminal epidural steroid injection
nerve conduction studies
sacral selective nerve root block
sacral transforaminal epidural steroid injection
selective nerve root block
subarachnoid block
subarachnoid block with local anesthetic
transforaminal epidural steroid injection

In 2012, Dr. Masato Nagao, MD, PhD had a list price for epidural nerve block, epidural nerve block with local anesthetic (numbing medicine), epidural steroid injection, lumbar (low-back) selective nerve root block, lumbar (low-back) transforaminal epidural steroid injection, nerve conduction studies (NCS), sacral (low-back) selective nerve root block, sacral (low-back) transforaminal epidural steroid injection, selective nerve root block (SNRB), subarachnoid block, subarachnoid block with local anesthetic (numbing medicine), and transforaminal epidural steroid injection that was lower than the list prices billed to Medicare by 75% of providers in related specialties within California. 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. Masato Nagao, MD, PhD treated as a general practitioner in SAN FRANCISCO, CA during 2012 were diagnostic procedures, injections, nerve block and pain management.

Volume of procedures performed by Dr. Masato Nagao, MD, PhD for Medicare patients.

aspiration 19
diagnostic procedures 377
injections 81
nerve block 62
pain management 62
spinal procedures 62

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Masato Nagao, MD, PhD treated as a general practitioner in SAN FRANCISCO, CA during 2013 were diagnostic procedures, nerve block, pain management and spinal procedures.

Volume of procedures performed by Dr. Masato Nagao, MD, PhD for Medicare patients.

diagnostic procedures 43
injections 32
nerve block 32
pain management 32
spinal procedures 32

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Masato Nagao, MD, PhD.

Gender
Male 32
Female 70
Ethnicity
Non-Hispanic White 40
Black 23
Hispanic 21
Asian 0
Other 0
Native American 0
Age
From 65 to 74 36
From 75 to 84 0
85 and over 0
Less than 65 47

Conditions of Medicare patients treated by Dr. Masato Nagao, MD, PhD in 2013

Hypertension 58
High Cholesterol 38
Stroke 0
Ischemic Heart Disease 20
Depression 31
Chronic Kidney Disease 14
Asthma 11
Osteoperosis 0
Atrial Fibrilation 0
Heart Failure 0
Chronic Obstructive Pulmonary Disease 0
Diabetes 32
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Masato Nagao, MD, PhD treated as a general practitioner in SAN FRANCISCO, CA during 2014 were diagnostic procedures, nerve block, pain management and spinal procedures.

Volume of procedures performed by Dr. Masato Nagao, MD, PhD for Medicare patients.

diagnostic procedures 55
injections 39
nerve block 39
pain management 39
spinal procedures 39

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Masato Nagao, MD, PhD.

Gender
Male 38
Female 75
Ethnicity
Non-Hispanic White 44
Black 0
Hispanic 32
Asian 18
Other 0
Native American 0
Age
From 65 to 74 41
From 75 to 84 0
85 and over 0
Less than 65 48

Conditions of Medicare patients treated by Dr. Masato Nagao, MD, PhD in 2014

Hypertension 64
High Cholesterol 42
Stroke 0
Ischemic Heart Disease 24
Depression 38
Chronic Kidney Disease 21
Asthma 15
Osteoperosis 0
Atrial Fibrilation 0
Heart Failure 11
Chronic Obstructive Pulmonary Disease 0
Diabetes 35
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Masato Nagao, MD, PhD treated as a general practitioner in SAN FRANCISCO, CA during 2015 were nerve block, pain management, spinal procedures and injections.

Volume of procedures performed by Dr. Masato Nagao, MD, PhD for Medicare patients.

diagnostic procedures 49
doctor visit 20
injections 53
nerve block 53
pain management 53
spinal procedures 53

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Masato Nagao, MD, PhD.

Gender
Male 100
Female 164
Ethnicity
Non-Hispanic White 108
Black 0
Hispanic 62
Asian 54
Other 0
Native American 0
Age
From 65 to 74 112
From 75 to 84 0
85 and over 0
Less than 65 98

Conditions of Medicare patients treated by Dr. Masato Nagao, MD, PhD in 2015

Hypertension 58
High Cholesterol 40
Stroke 0
Ischemic Heart Disease 13
Depression 36
Chronic Kidney Disease 16
Asthma 17
Osteoperosis 10
Atrial Fibrilation 0
Heart Failure 0
Chronic Obstructive Pulmonary Disease 0
Diabetes 35
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Masato Nagao, MD, PhD treated as a general practitioner in SAN FRANCISCO, CA during 2016 were injections, nerve block, pain management and spinal procedures.

Volume of procedures performed by Dr. Masato Nagao, MD, PhD for Medicare patients.

aspiration 18
diagnostic procedures 24
doctor visit 16
injections 77
nerve block 59
pain management 59
spinal procedures 59

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Masato Nagao, MD, PhD.

Gender
Male 58
Female 100
Ethnicity
Non-Hispanic White 64
Black 27
Hispanic 28
Asian 27
Other 0
Native American 0
Age
From 65 to 74 65
From 75 to 84 0
85 and over 0
Less than 65 53

Conditions of Medicare patients treated by Dr. Masato Nagao, MD, PhD in 2016

Hypertension 58
High Cholesterol 44
Stroke 0
Ischemic Heart Disease 23
Depression 37
Chronic Kidney Disease 19
Asthma 22
Osteoperosis 9
Atrial Fibrilation 0
Heart Failure 13
Chronic Obstructive Pulmonary Disease 11
Diabetes 35
Dementia 0
Cancer 8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Masato Nagao, MD, PhD treated as a general practitioner in SAN FRANCISCO, CA during 2017 were injections, aspiration, nerve block and pain management.

Volume of procedures performed by Dr. Masato Nagao, MD, PhD for Medicare patients.

aspiration 21
doctor visit 40
injections 41
nerve block 20
pain management 20
spinal procedures 20

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Masato Nagao, MD, PhD.

Gender
Male 59
Female 82
Ethnicity
Non-Hispanic White 49
Black 27
Hispanic 33
Asian 0
Other 0
Native American 0
Age
From 65 to 74 62
From 75 to 84 23
85 and over 16
Less than 65 40

Conditions of Medicare patients treated by Dr. Masato Nagao, MD, PhD in 2017

Hypertension 68
High Cholesterol 43
Stroke 0
Ischemic Heart Disease 23
Depression 38
Chronic Kidney Disease 26
Asthma 14
Osteoperosis 11
Atrial Fibrilation 0
Heart Failure 13
Chronic Obstructive Pulmonary Disease 0
Diabetes 38
Dementia 11
Cancer 9

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Masato Nagao, MD, PhD treated as a general practitioner in SAN FRANCISCO, CA during 2018 were nerve block, pain management, spinal procedures and injections.

Volume of procedures performed by Dr. Masato Nagao, MD, PhD for Medicare patients.

injections 24
nerve block 24
pain management 24
spinal procedures 24

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Masato Nagao, MD, PhD.

Gender
Male 41
Female 65
Ethnicity
Non-Hispanic White 38
Black 30
Hispanic 24
Asian 0
Other 0
Native American 0
Age
From 65 to 74 45
From 75 to 84 0
85 and over 0
Less than 65 34

Conditions of Medicare patients treated by Dr. Masato Nagao, MD, PhD in 2018

Hypertension 62
High Cholesterol 36
Stroke 0
Ischemic Heart Disease 24
Depression 43
Chronic Kidney Disease 19
Asthma 12
Osteoperosis 0
Atrial Fibrilation 0
Heart Failure 10
Chronic Obstructive Pulmonary Disease 13
Diabetes 25
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Masato Nagao, MD, PhD treated as a general practitioner in SAN FRANCISCO, CA during 2019 were nerve block, pain management, spinal procedures and injections.

Volume of procedures performed by Dr. Masato Nagao, MD, PhD for Medicare patients.

diagnostic procedures 17
injections 23
nerve block 23
pain management 23
spinal procedures 23

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Masato Nagao, MD, PhD.

Gender
Male 43
Female 63
Ethnicity
Non-Hispanic White 44
Black 0
Hispanic 18
Asian 24
Other 0
Native American 0
Age
From 65 to 74 54
From 75 to 84 0
85 and over 0
Less than 65 27

Conditions of Medicare patients treated by Dr. Masato Nagao, MD, PhD in 2019

Hypertension 62
High Cholesterol 31
Stroke 0
Ischemic Heart Disease 15
Depression 42
Chronic Kidney Disease 25
Asthma 14
Osteoperosis 12
Atrial Fibrilation 0
Heart Failure 12
Chronic Obstructive Pulmonary Disease 10
Diabetes 34
Dementia 0
Cancer 12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Masato Nagao, MD, PhD treated as a general practitioner in SAN FRANCISCO, CA during 2020 were nerve block, pain management, spinal procedures and injections.

Volume of procedures performed by Dr. Masato Nagao, MD, PhD for Medicare patients.

injections 22
nerve block 22
pain management 22
spinal procedures 22

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Masato Nagao, MD, PhD.

Gender
Male 40
Female 63
Ethnicity
Non-Hispanic White 42
Black 19
Hispanic 23
Asian 0
Other 0
Native American 0
Age
From 65 to 74 49
From 75 to 84 0
85 and over 0
Less than 65 29

Conditions of Medicare patients treated by Dr. Masato Nagao, MD, PhD in 2020

Hypertension 50
High Cholesterol 44
Stroke 0
Ischemic Heart Disease 21
Depression 36
Chronic Kidney Disease 28
Asthma 11
Osteoperosis 0
Atrial Fibrilation 0
Heart Failure 11
Chronic Obstructive Pulmonary Disease 15
Diabetes 36
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Masato Nagao, MD, PhD treated as a general practitioner in SAN FRANCISCO, CA during 2021 were nerve block, pain management, spinal procedures and injections.

Volume of procedures performed by Dr. Masato Nagao, MD, PhD for Medicare patients.

diagnostic procedures 24
injections 36
nerve block 36
pain management 36
spinal procedures 36

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Masato Nagao, MD, PhD.

Gender
Male 51
Female 71
Ethnicity
Non-Hispanic White 42
Black 0
Hispanic 24
Asian 30
Other 0
Native American 0
Age
From 65 to 74 63
From 75 to 84 0
85 and over 0
Less than 65 32

Conditions of Medicare patients treated by Dr. Masato Nagao, MD, PhD in 2021

Hypertension 60
High Cholesterol 42
Stroke 0
Ischemic Heart Disease 15
Depression 25
Chronic Kidney Disease 24
Asthma 0
Osteoperosis 14
Atrial Fibrilation 0
Heart Failure 10
Chronic Obstructive Pulmonary Disease 13
Diabetes 25
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Masato Nagao, MD, PhD treated as a general practitioner in SAN FRANCISCO, CA during 2022 were diagnostic procedures, nerve block, pain management and spinal procedures.

Volume of procedures performed by Dr. Masato Nagao, MD, PhD for Medicare patients.

diagnostic procedures 65
injections 29
nerve block 29
pain management 29
spinal procedures 29

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Masato Nagao, MD, PhD.

Gender
Male 56
Female 90
Ethnicity
Non-Hispanic White 52
Black 27
Hispanic 0
Asian 35
Other 0
Native American 0
Age
From 65 to 74 74
From 75 to 84 33
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Masato Nagao, MD, PhD in 2022

Hypertension 67
High Cholesterol 57
Stroke 8
Ischemic Heart Disease 13
Depression 27
Chronic Kidney Disease 16
Asthma 17
Osteoperosis 14
Atrial Fibrilation 0
Heart Failure 10
Chronic Obstructive Pulmonary Disease 14
Diabetes 30
Dementia 0
Cancer 0

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Masato Nagao, MD, PhD treated as a general practitioner in SAN FRANCISCO, CA during 2023 were nerve block, pain management, spinal procedures and injections.

Volume of procedures performed by Dr. Masato Nagao, MD, PhD for Medicare patients.

diagnostic procedures 31
injections 35
nerve block 35
pain management 35
spinal procedures 35

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Masato Nagao, MD, PhD.

Gender
Male 62
Female 83
Ethnicity
Non-Hispanic White 51
Black 0
Hispanic 29
Asian 44
Other 0
Native American 0
Age
From 65 to 74 86
From 75 to 84 26
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Masato Nagao, MD, PhD in 2023

Hypertension 73
High Cholesterol 66
Stroke 0
Ischemic Heart Disease 17
Depression 21
Chronic Kidney Disease 18
Asthma 12
Osteoperosis 15
Atrial Fibrilation 0
Heart Failure 8
Chronic Obstructive Pulmonary Disease 10
Diabetes 32
Dementia 0
Cancer 10

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Masato Nagao, MD, PhD treated as a general practitioner in SAN FRANCISCO, CA during 2024 were diagnostic procedures, nerve block, pain management and spinal procedures.

Volume of procedures performed by Dr. Masato Nagao, MD, PhD for Medicare patients.

diagnostic procedures 65
injections 36
nerve block 36
pain management 36
spinal procedures 36

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Masato Nagao, MD, PhD.

Gender
Male 74
Female 93
Ethnicity
Non-Hispanic White 61
Black 0
Hispanic 32
Asian 40
Other 0
Native American 0
Age
From 65 to 74 90
From 75 to 84 37
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Masato Nagao, MD, PhD in 2024

Hypertension 71
High Cholesterol 69
Stroke 0
Ischemic Heart Disease 17
Depression 26
Chronic Kidney Disease 21
Asthma 16
Osteoperosis 13
Atrial Fibrilation 10
Heart Failure 10
Chronic Obstructive Pulmonary Disease 11
Diabetes 24
Dementia 0
Cancer 10

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Masato Nagao, MD, PhD for Medicare patients.

The highest averages for the top procedures that Dr. Masato Nagao, MD, PhD treated as a general practitioner in SAN FRANCISCO, CA were diagnostic procedures, injections, nerve block and pain management.

aspiration 19
diagnostic procedures 75
doctor visit 25
injections 40
nerve block 36
pain management 36
spinal procedures 36

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Masato Nagao, MD, PhD.

Gender
Male 50
Female 78
Ethnicity
Black / African American 11
Asian / Pacific Islander 20
Non-Hispanic White 48
Hispanic 25
Native American / Alaskan Native 0
Other 0
Age
85 and over 1
75 to 84 9
Less than 65 31
65 to 74 59

Average of Total of Conditions of Medicare patients treated by Dr. Masato Nagao, MD, PhD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Masato Nagao, MD, PhD treated were hypertension, high cholesterol, depression and diabetes.

Hypertension 57
High Cholesterol 42
Stroke 0
Ischemic Heart Disease 17
Depression 30
Chronic Kidney Disease 19
Asthma 12
Osteoporosis 7
Heart Failure 8
Chronic Obstructive Pulmonary Disease 7
Diabetes 29
Atrial Fibrillation 0
Cancer 3
Dementia 0

Education & Training

He completed residency at Albany Medical Center. He is certified by the Board certification: Physical Medicine & Rehab, American Board of Physical Medicine and Rehab and has a state license in California.

Residency: Albany Medical Center

Board Certification: Board certification: Physical Medicine & Rehab, American Board of Physical Medicine and Rehab

Licensed In: California

Affiliations & Hospitals

Dr. Masato Nagao, MD, PhD is associated with these hospitals and organizations:

UCSF Health
Washington Hospital Healthcare System
Hill Physicians
Electromyography Clinic at the Orthopaedic Institute

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. Masato Nagao, MD, PhD appears to accept the following insurance providers: Cigna, Aetna, Blue Shield of California, UnitedHealthcare, SCAN Health Plan, Anthem, 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. Masato Nagao, MD, PhD accepts the following insurance providers:

Cigna
Aetna
Blue Shield of California
UnitedHealthcare
SCAN Health Plan
Anthem
Health Net
Hill Physicians Care Solutions
Central Health Plan
CCHP Health Plan (Chinese Community Health Plan)
Canopy Health

Ratings & Reviews

Dr. Masato Nagao, MD, PhD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 3 ratings. We collect ratings and reviews of Dr. Masato Nagao, MD, PhD from all over the web to help you find the right in SAN FRANCISCO, CA. 

5
Overall Rating
Leave a Review
Reviews From Around The Web
Overall Rating: 5.0 2026-02-03
Patient verified via Press Ganey
I can't overstate how well my visit went, and on the level of care I received. Very. Good is not high enough.
Overall Rating: 5.0 2025-09-09
Patient verified via Press Ganey
So professional and kind

General Payments

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

Payments by Company
Daiichi Sankyo Company LTD $1,680
$1,680
Types of Payments
Consulting Fee $1,680

Biography

Dr. Masato Nagao's medical specialty is physiatry (physical medicine & rehabilitation). In his practice, he is particularly interested in rehabilitation. For his residency, Dr. Nagao trained at Albany Medical Center and Sinai Hospital of Baltimore. Dr. Nagao speaks Japanese. He is professionally affiliated with the University of California SFGH Medical Group, Washington Hospital Healthcare System, and Brown and Toland Physicians. His practice in San Francisco, CA is open to new patients as reported by Doctor.com.

General Practitioners in Nearby Locations

Other Providers in SAN FRANCISCO, CA