RZ
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Zhang, Nuclear Medicine Specialist in Walnut Creek, CA?
Dr. Ray Zhang, MD, PHD is a Nuclear Medicine Specialist, who primarily practices in Walnut Creek, CA with 2 additional practice locations. Dr. Zhang is fluent in English, and is currently seeing new patients. Dr. Zhang’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Zhang’s office at (608) 770-9649.
What languages does Dr. Zhang speak?
Dr. Zhang and their clinical team can communicate with patients in the following languages:
English
What conditions does a Nuclear Medicine Specialist like Dr. Zhang typically treat?
As a Nuclear Medicine Specialist, Dr. Zhang diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Zhang. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Asymptomatic Menopause
- Menopause
- Menopausal Transition
- Postmenopause
- Change of Life
ICD-10 Codes:
- Z780: Asymptomatic menopausal state
Also known as:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Upper body pain
ICD-10 Codes:
- R079: Chest pain, unspecified
Also known as:
- Age-Related Osteoporosis
- Fractures
- Osteoporosis
- Senile Osteoporosis
- Primary Osteoporosis
- Bone Thinning from Aging
ICD-10 Codes:
- M810: Age-related osteoporosis without current pathological fracture
Also known as:
- Shortness of Breath
- Breathing Problems
- Difficulty breathing
- Breathlessness
- Dyspnea
ICD-10 Codes:
- R0602: Shortness of breath
Also known as:
- Pleural Effusion
- Pleural Disorder
- Fluid in lungs
- Water on the lung
- Fluid around lungs
ICD-10 Codes:
- J90: Pleural effusion, not elsewhere classified
Also known as:
- Bone Density and Structure Disorder
- Bone Density
- Bone Disease
- Bone Structure Problem
- Bone Density Problem
ICD-10 Codes:
- M85852: Other specified disorders of bone density and structure, left thigh
Also known as:
- Abdominal Pain
- Stomach Ache
- Belly Pain
- Stomach Pain
ICD-10 Codes:
- R109: Unspecified abdominal pain
Also known as:
- Other Abnormal Findings on Lung Scan
- Unusual Lung Scan Results
- Atypical Lung Imaging
- Nonspecific Lung Abnormality
ICD-10 Codes:
- R918: Other nonspecific abnormal finding of lung field
What procedures does a Nuclear Medicine Specialist like Dr. Zhang typically perform?
As a Nuclear Medicine Specialist, procedures performed by Dr. Ray Zhang may include:
- Abdominal Nuclear Medicine Study
- Brain Perfusion Scan
- Gastric Emptying Scan
- Glucose Metabolic Imaging - FDG
- Hepatobiliary Imaging
- Iodine Treatment
- Nuclear Medicine Consultation
- Nuclear Medicine Follow Up
Please contact Dr. Zhang's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Zhang accept my insurance?
Dr. Zhang accepts most major insurance plans. Important: Please call our office at (608) 770-9649 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Zhang accept in Walnut Creek, CA?
Dr. Zhang in Walnut Creek, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Shield of California
Cigna Group
Contra Costa
CVS Health (formerly Aetna)
Humana
Medicare
Molina Healthcare
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Zhang's office located?
Dr. Ray Zhang's Primary Practice
1601 Ygnacio Valley Rd
Walnut Creek, CA 94598
(608) 770-9649
What is Dr. Zhang's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Zhang's National Provider Identifier (NPI) number is 1417418856.
What common questions do patients ask about Dr. Zhang?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Zhang
What is Dr. Ray Zhang's specialty?
Dr. Zhang is a Nuclear Medicine Specialist near Walnut Creek, CA.
What does a Nuclear Medicine Specialist do?
Nuclear Medicine Specialist has expertise in using the properties of radioactive atoms and molecules for the diagnosis and treatment of various diseases, as well as for medical research purposes. Diseases are detected by using radiation detection and imaging instrument systems, as this technique changes the functionality and metabolism of normal body cells, tissues and organs. This approach can reveal a wide range of diseases, often before structural abnormalities in the affected organ are detectable using other techniques. Key applications include the early detection of coronary artery disease (including acute heart attacks), early cancer diagnosis and treatment evaluation, as well as diagnosing infections and inflammation throughout the body. Additionally, these techniques can facilitate the early detection of blood clots in the lungs. Unique forms of radioactive molecules are used to attack and destroy cancer cells (such as those found in lymphoma and thyroid cancer) or alleviate severe pain associated with cancer that has metastasized to the bones.
Is this Dr. Ray Zhang affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Zhang is affiliated with John Muir Health Walnut Creek Medical Center, John Muir Health Concord Medical Center, Sutter Delta Medical Center, Stanford Health Care - Valleycare, Sutter Santa Rosa Regional Hospital, St. Elizabeth Community Hospital which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see a Nuclear Medicine Specialist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Nuclear Medicine Specialist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Ray Zhang accepting new patients in Walnut Creek, CA?
Yes, Dr. Ray Zhang is accepting new patients at this time.
Does Dr. Ray Zhang offer online booking?
Please contact Dr. Zhang's office at (608) 770-9649 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Ray Zhang?
Please contact Dr. Zhang's office at (608) 770-9649 for information regarding telehealth appointment availability or for scheduling assistance.
Other Nuclear Medicine Specialist Near Walnut Creek, CA
MJ
Nuclear Medicine Specialist
Dr. Mickaila Johnston, MD is a Nuclear Medicine Specialist, who primarily practices in San Jose, CA with 2 additional practice locations.
San Jose, CA
MR
Nuclear Medicine Specialist
Dr. Mohan Ramaswamy, MD is a Nuclear Medicine Specialist, who primarily practices in Walnut Creek, CA. He has been practicing for over 26 years.
Walnut Creek, CA

Nuclear Medicine Specialist
Dr. Juanita Yun, MD is a Nuclear Medicine Specialist, who primarily practices in Walnut Creek, CA. She has been practicing for over 29 years and is board certified.
Walnut Creek, CA