35 Years of Experience
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Merrill, Internist in Riverside, CA?
Dr. Patrick Merrill, MD is an Internist, who primarily practices in Riverside, CA. He has been practicing for over 35 years and is board certified. Dr. Merrill graduated from University of Illinois College of Medicine and completed his residency at Kaiser Permanente Med Ctr, Internal Medicine. Dr. Merrill is fluent in English, and is currently seeing new patients. To book an appointment or to confirm insurance options, please call Dr. Merrill’s office at (909) 353-2000.
Where did Dr. Merrill go to medical school and complete their residency?
Residency: Kaiser Permanente Med Ctr, Internal Medicine | Stanford University Hospital/Kaiser Permanente Medical Center Program
Medical School: University Of Il Coll Of Med- Chicago Il | University of Illinois College of Medicine
Is Dr. Merrill board certified as an Internist?
Yes, Dr. Patrick Merrill, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Merrill speak?
Dr. Merrill and their clinical team can communicate with patients in the following languages:
English
What conditions does an Internist like Dr. Merrill typically treat?
As an Internist, Dr. Merrill 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. Merrill. 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:
- Migraine
- Migraine headache
- Severe headache
- Vascular headache
ICD-10 Codes:
- G43909: Migraine, unspecified, not intractable, without status migrainosus
Also known as:
- Iron Deficiency Anemia
- Anemia
- Iron
- Anemia from Iron Lack
- Low Iron Anemia
- Sideropenic Anemia
- Low Red Blood Cell Count
- Low Hemoglobin
- Iron deficiency
ICD-10 Codes:
- D509: Iron deficiency anemia, unspecified
- D649: Anemia, unspecified
Also known as:
- COVID-19
- COVID-19 (Coronavirus Disease 2019)
- Coronavirus Disease 2019
- SARS-CoV-2 Infection
- Novel Coronavirus
ICD-10 Codes:
- U071: COVID-19
Also known as:
- Chronic Kidney Disease
- Helping Your Child Adapt to Life with Chronic Kidney Disease
- Mineral & Bone Disorder in Chronic Kidney Disease
- CKD
- Long-Term Kidney Disease
ICD-10 Codes:
- N189: Chronic kidney disease, unspecified
What procedures does an Internist like Dr. Merrill typically perform?
As an Internist, procedures performed by Dr. Patrick Merrill may include:
- Ambulatory Care Consultation
- Annual Check Up
- Annual Physical
- Aromatherapy
- Bladder and Bowel Management
- Blood Pressure Testing
- Bowel and Bladder Management
- Certified Medical Examination for Commercial Driver / Vessel Master
Please contact Dr. Merrill's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Merrill accept my insurance?
Dr. Merrill accepts most major insurance plans. Important: Please call our office at (909) 353-2000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Merrill accept in Riverside, CA?
Dr. Merrill in Riverside, 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
CVS Health (formerly Aetna)
Unknown
View All Insurances
Where is Dr. Merrill's office located?
Dr. Patrick Merrill's Primary Practice
10800 Magnolia Ave
Riverside, CA 92505
(909) 353-2000
What is Dr. Merrill's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Merrill's National Provider Identifier (NPI) number is 1952460545.
What common questions do patients ask about Dr. Merrill?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Merrill
What is Dr. Patrick Merrill's specialty?
Dr. Merrill is a Internist near Riverside, CA.
What does an Internist do?
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Is this Dr. Patrick Merrill affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Merrill is affiliated with Kaiser Permanente Riverside Medical Center which is a Castle Connolly Top Hospital. 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 an Internist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see an Internist. 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 Patrick Merrill accepting new patients in Riverside, CA?
Yes, Dr. Patrick Merrill is accepting new patients at this time.
Does Dr. Patrick Merrill offer online booking?
Please contact Dr. Merrill's office at (909) 353-2000 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Patrick Merrill?
Please contact Dr. Merrill's office at (909) 353-2000 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Patrick Merrill have?
Dr. Patrick Merrill is certified by the American Board of Internal Medicine.
<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>