24 Years of Experience
Accepting patients
Who is Dr. Merrigan, Family Medicine Specialist in Walnut Creek, CA?
Dr. Timmothy Merrigan, MD is a Family Medicine Specialist, who primarily practices in Walnut Creek, CA with 1 additional practice location. He has been practicing for over 24 years and is board certified by the American Board of Family Medicine. Dr. Merrigan graduated from Medical College of Wisconsin and completed his residency at San Joaquin Gen Hosp, Family Medicine; Kaiser Fndn Hosp-Los Angeles, General Surgery. Dr. Merrigan is fluent in English, and is currently seeing new patients. Dr. Merrigan’s practice accepts Kaiser Permanente, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Merrigan’s office at (924) 906-2326.
Where did Dr. Merrigan go to medical school and complete their residency?
Residency: San Joaquin Gen Hosp, Family Medicine; Kaiser Fndn Hosp-Los Angeles, General Surgery | San Joaquin General Hospital
Medical School: Med Coll of Wi, Milwaukee Wi | Medical College of Wisconsin
Is Dr. Merrigan board certified in Family Medicine Specialist?
Yes, Dr. Timmothy Merrigan, MD is board certified by the American Board of Family Medicine
What languages does Dr. Merrigan speak?
Dr. Merrigan and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Merrigan treat?
As a Family Medicine Specialist, Dr. Merrigan 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. Merrigan. 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.
Also known as:
- Immunization Visit
- Vaccines
- Vaccination appointment
- Shot visit
- Immunization encounter
ICD-10 Codes:
- Z23: Encounter for immunization
Also known as:
- Routine Adult Health Checkup
- Health Checkup
- Adult physical exam
- Annual wellness visit for adults
- General adult medical exam
ICD-10 Codes:
- Z0000: Encounter for general adult medical examination without abnormal findings
Also known as:
- Special Medical Examination
- Specific health check
- Detailed medical assessment
- Special health screening
ICD-10 Codes:
- Z0189: Encounter for other specified special examinations
Also known as:
- High Blood Pressure Heart Disease with Heart Failure
- Heart Failure
- High Blood Pressure
- Hypertensive Heart Failure
- High Blood Pressure Causing Heart Failure
ICD-10 Codes:
- I110: Hypertensive heart disease with heart failure
Also known as:
- Urinary Tract Infection
- UTI
- Bladder infection
- Kidney infection
- Urine infection
ICD-10 Codes:
- N390: Urinary tract infection, site not specified
Also known as:
- High Blood Pressure Heart and Kidney Disease with Heart Failure
- Chronic Kidney Disease
- Heart Failure
- High Blood Pressure
- Hypertensive Cardiorenal Syndrome
- Heart and Kidney Failure from High Blood Pressure
ICD-10 Codes:
- I130: Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease
Also known as:
- Pneumonia
- Lung Infection
- Chest Infection
- Pneumonitis
ICD-10 Codes:
- J189: Pneumonia, unspecified organism
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Type 2 Diabetes
- Diabetes Type 2
- Type 2 diabetes
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
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:
- Wound Dressing Change or Removal
- Wounds and Injuries
- Non-surgical dressing care
- Wound care visit
- Dressing replacement
ICD-10 Codes:
- Z4800: Encounter for change or removal of nonsurgical wound dressing
Also known as:
- Alzheimer's Disease
- Alzheimer's Disease Fact Sheet
- AD', 'Alzheimer's Dementia
- Memory Loss Disease
ICD-10 Codes:
- G309: Alzheimer's disease, unspecified
Also known as:
- Circulatory System Surgery Aftercare
- After Surgery
- Post-cardiac surgery care
- Vascular surgery aftercare
- Heart surgery recovery
ICD-10 Codes:
- Z48812: Encounter for surgical aftercare following surgery on the circulatory system
Also known as:
- Cancer Surgery Aftercare
- After Surgery
- Cancer
- Post-cancer surgery care
- Oncology aftercare
- Cancer recovery follow-up
ICD-10 Codes:
- Z483: Aftercare following surgery for neoplasm
Also known as:
- Wart
- Warts
- Skin growth
- Common wart
- Verruca
ICD-10 Codes:
- B079: Viral wart, unspecified
Also known as:
- Other Orthopedic Aftercare
- General orthopedic recovery
- Musculoskeletal post-op care
- Bone and joint follow-up
ICD-10 Codes:
- Z4789: Encounter for other orthopedic aftercare
Also known as:
- Sepsis
- Blood Poisoning
- Septicemia
- Systemic Bacterial Infection
ICD-10 Codes:
- A419: Sepsis, unspecified organism
Also known as:
- Cough
- Coughing
- Persistent cough
- Chronic cough
ICD-10 Codes:
- R059: Cough, unspecified
Which procedures does Dr. Merrigan perform as a Family Medicine Specialist?
As a Family Medicine Specialist, procedures performed by a Dr. Timmothy Merrigan may include:
- ALCAT Testing
- Joint Injection
- Medication Assisted Treatment (MAT)
- Nebulizer Treatment
- OB Consultation
- Ozone Injection
- Post-Surgery Checkup
- Tetanus Shot
For detailed information, please contact Dr. Merrigan's office.
Does Dr. Merrigan accept my insurance?
Dr. Merrigan accepts most major insurance plans. Important: Please call our office at (924) 906-2326 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Merrigan accept in Walnut Creek, CA?
Dr. Merrigan 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
Kaiser Permanente
Medicare
UnitedHealthcare
View All Insurances
Where is Dr. Merrigan's office located?
Dr. Timmothy Merrigan's Primary Practice
320 Lennon Ln
Walnut Creek, CA 94598
(924) 906-2326
What is Dr. Merrigan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Merrigan's National Provider Identifier (NPI) number is 1063442945.
What common questions do patients ask about Dr. Merrigan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Merrigan
What is Dr. Timmothy Merrigan's specialty?
Dr. Merrigan is a Family Medicine Specialist near Walnut Creek, CA. Family Medicine is a medical specialty focused on comprehensive healthcare for individuals and families. It is a broad field that integrates biological, clinical, and behavioral sciences. The scope of family medicine covers all ages, genders, organ systems, and disease conditions, offering a holistic approach to patient care. Contact Dr. Merrigan to book an appointment today.
Is this Dr. Timmothy Merrigan affiliated with a ranked Castle Connolly Top Hospital?
No, Merrigan is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Kaiser Permanente - Walnut Creek Medical Center. Castle Connolly Top Hospitals 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
Where can I learn more about Family Medicine Specialist?
Explore Family Medicine Specialist with 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 Timmothy Merrigan accepting new patients in Walnut Creek, CA?
Yes, Dr. Timmothy Merrigan is accepting new patients at this time.
Does Dr. Timmothy Merrigan offer online booking?
Please contact Dr. Merrigan's office at (924) 906-2326 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Timmothy Merrigan?
Please contact Dr. Merrigan's office at (924) 906-2326 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Timmothy Merrigan have?
Dr. Timmothy Merrigan is certified by the American Board of Family Medicine.
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