Affiliated with a Castle Connolly Top Hospital
Who is Dr. Mar, Rheumatologist in San Jose, CA?
Dr. Diane Mar, MD is a Rheumatologist, who primarily practices in San Jose, CA with 2 additional practice locations. Dr. Mar is fluent in English, and is currently seeing new patients. Dr. Mar’s practice accepts Medicaid, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Mar’s office at (650) 723-4000.
What languages does Dr. Mar speak?
Dr. Mar and their clinical team can communicate with patients in the following languages:
English
What conditions does a Rheumatologist like Dr. Mar typically treat?
As a Rheumatologist, Dr. Mar 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. Mar. 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 here.
Also known as:
- Rheumatoid Arthritis
- RA
- Chronic inflammatory arthritis
- Autoimmune arthritis
- Inflammatory joint disease
ICD-10 Codes:
- M069: Rheumatoid arthritis, unspecified
- M0579: Rheumatoid arthritis with rheumatoid factor of multiple sites without organ or systems involvement
- M059: Rheumatoid arthritis with rheumatoid factor, unspecified
Also known as:
- Lupus
- Lupus kidney disease
- Kidney Disease
- Systemic lupus erythematosus
- SLE
- Disseminated lupus erythematosus
- Lupus nephritis
- Kidney inflammation from lupus
- Glomerulonephritis in SLE
ICD-10 Codes:
- M329: Systemic lupus erythematosus, unspecified
- M3214: Glomerular disease in systemic lupus erythematosus
Also known as:
- Pain in Hand Joints
- Joint Disorder
- Hand Joint Ache
- Hand Joint Discomfort
- Sore Hand Joints
ICD-10 Codes:
- M25549: Pain in joints of unspecified hand
Also known as:
- Psoriatic Arthritis
- Psoriasis
- Psoriatic joint inflammation
- Arthritis with psoriasis
- Psoriasis-related joint pain
ICD-10 Codes:
- L4050: Arthropathic psoriasis, unspecified
Also known as:
- Giant cell arteritis
- Giant Cell Arteritis
- Polymyalgia Rheumatica and Giant Cell Arteritis
- Temporal arteritis
- Horton's disease
- Cranial arteritis
ICD-10 Codes:
- M316: Other giant cell arteritis
What procedures does a Rheumatologist like Dr. Mar typically perform?
As a Rheumatologist, Dr. Mar performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Mar. 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 here.
Also known as:
- Joint or Bursa Injection/Fluid Removal
- Arthrocentesis
- Major Joint Aspiration
- Bursa Injection
- Joint Fluid Removal
CPT Codes:
- 20610: Arthrocentesis, aspiration and/or injection, major joint or bursa (eg, shoulder, hip, knee, subacromial bursa); without ultrasound guidance
Does Dr. Mar accept my insurance?
Dr. Mar accepts most major insurance plans. Important: Please call our office at (650) 723-4000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Mar accept in San Jose, CA?
Dr. Mar in San Jose, 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
Elevance Health Inc. (formerly Anthem)
Medicaid
Medicare
OptumRx Administered Payer
Other Provider Networks
Santa Cruz County
State of California
Unknown
Valley Health Plan
View All Insurances
Where is Dr. Mar's office located?
What is Dr. Mar's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Mar's National Provider Identifier (NPI) number is 1356704795.
What common questions do patients ask about Dr. Mar?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Mar
What is Dr. Diane Mar's specialty?
Dr. Mar is a Rheumatologist near San Jose, CA.
What does a Rheumatologist do?
An internist specializing in the treatment of diseases affecting the joints, muscles, bones, and tendons. This specialist diagnoses and manages conditions such as arthritis, back pain, muscle strains, common sports injuries, and collagen-related diseases.
Is this Dr. Diane Mar affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Mar is affiliated with Stanford Health Care - Stanford Hospital, Mills-Peninsula Medical Center 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 Rheumatologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Rheumatologist. 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 Diane Mar accepting new patients in San Jose, CA?
Yes, Dr. Diane Mar is accepting new patients at this time.
Does Dr. Diane Mar offer online booking?
Please contact Dr. Mar's office at (650) 723-4000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Diane Mar?
Please contact Dr. Mar's office at (650) 723-4000 for information regarding telehealth appointment availability or for scheduling assistance.
<section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>