TL
15 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Lancaster, Emergency Medicine Specialist in Oro Valley, AZ?
Dr. Timothy Lancaster, MD is an Emergency Medicine Specialist, who primarily practices in Oro Valley, AZ with 2 additional practice locations. He has been practicing for over 15 years. Dr. Lancaster is fluent in English, and is currently seeing new patients. Dr. Lancaster’s practice accepts Kaiser Permanente, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Lancaster’s office at (520) 901-3500.
Where did Dr. Lancaster go to medical school and complete their residency?
Medical School: St George',s University
What languages does Dr. Lancaster speak?
Dr. Lancaster and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Lancaster treat?
As an Emergency Medicine Specialist, Dr. Lancaster 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. Lancaster. 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:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Pectoral pain
ICD-10 Codes:
- R0789: Other chest pain
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Sepsis
- Blood Poisoning
- Septicemia
- Systemic Bacterial Infection
ICD-10 Codes:
- A419: Sepsis, unspecified organism
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:
- Dizziness
- Dizziness and Vertigo
- Lightheadedness
- Giddiness
- Vertigo
ICD-10 Codes:
- R42: Dizziness and giddiness
Also known as:
- Headache
- Head pain
- Cephalalgia
- Tension headache
ICD-10 Codes:
- R519: Headache, unspecified
Also known as:
- Head Injury
- Head Injuries
- Head Trauma
- Cranial Injury
- Brain Injury
ICD-10 Codes:
- S098XXA: Other specified injuries of head, initial encounter
Also known as:
- Non-Infectious Gastroenteritis and Colitis
- Digestive Disease
- Inflammation of Stomach and Intestines
- Non-Bacterial Colitis
- Gut Inflammation
ICD-10 Codes:
- K529: Noninfective gastroenteritis and colitis, unspecified
Also known as:
- Dehydration
- Fluid and Electrolyte Balance
- Lack of Fluids
- Fluid Loss
- Body Water Depletion
ICD-10 Codes:
- E860: Dehydration
Also known as:
- Heart Failure
- Congestive Heart Failure
- CHF
- Cardiac Insufficiency
ICD-10 Codes:
- I509: Heart failure, unspecified
Also known as:
- Fever
- High temperature
- Pyrexia
- Elevated body temperature
ICD-10 Codes:
- R509: Fever, unspecified
Also known as:
- Upper Middle Abdominal Pain
- Abdominal Pain
- Epigastric pain
- Pain below breastbone
- Upper stomach pain
ICD-10 Codes:
- R1013: Epigastric pain
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:
- Fainting
- Syncope
- Passing out
- Collapse
ICD-10 Codes:
- R55: Syncope and collapse
Also known as:
- Asthma Flare-Up
- Asthma
- Asthma Attack
- Acute Asthma Exacerbation
- Worsening Asthma
- Asthma Episode
ICD-10 Codes:
- J45901: Unspecified asthma with (acute) exacerbation
Also known as:
- Flu with Respiratory Symptoms
- Flu
- Influenza with Breathing Problems
- Flu with Cough
- Severe Flu
ICD-10 Codes:
- J111: Influenza due to unidentified influenza virus with other respiratory manifestations
Also known as:
- Low Back Pain
- Back Pain
- Lumbago
- Lower Back Ache
- Backache
ICD-10 Codes:
- M5450: Low back pain, unspecified
Also known as:
- Shortness of Breath
- Breathing Problems
- Difficulty breathing
- Breathlessness
- Dyspnea
ICD-10 Codes:
- R0602: Shortness of breath
Also known as:
- Viral Infection
- Virus Infection
- Viral Illness
- Common Virus
ICD-10 Codes:
- B349: Viral infection, unspecified
Also known as:
- Muscle Weakness
- Muscle Disorder
- Loss of strength
- Fatigue
- Muscle fatigue
ICD-10 Codes:
- R531: Weakness
Which procedures does Dr. Lancaster perform as an Emergency Medicine Specialist?
As an Emergency Medicine Specialist, procedures performed by Dr. Timothy Lancaster may include:
- Emergency Consultation
- Emergency Follow Up
- Emergency Medicine Consultation
- Removal of Foreign Object from Body
- Urgent Care Consultation
- Urgent Care Follow Up
For detailed information, please contact Dr. Lancaster's office.
Does Dr. Lancaster accept my insurance?
Dr. Lancaster accepts most major insurance plans. Important: Please call our office at (520) 901-3500 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Lancaster accept in Oro Valley, AZ?
Dr. Lancaster in Oro Valley, AZ accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Alignment Health Plan
Banner Health
Blue Cross Blue Shield of Arizona
CVS Health (formerly Aetna)
Easy Choice Health Plan
Express Scripts
Medicare
Mercy Care Plan
Scan Health Plan
State of Tennessee
View All Insurances
Where is Dr. Lancaster's office located?
Dr. Timothy Lancaster's Primary Practice
1551 E Tangerine Rd
Oro Valley, AZ 85755
(520) 901-3500
Recognitions
Castle Connolly Doctor’s Choice Awards
Doctor’s Choice - 2025
Among the most nominated for the Castle Connolly Top Doctor recognition in 2025
What is Dr. Lancaster's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Lancaster's National Provider Identifier (NPI) number is 1578755120.
What common questions do patients ask about Dr. Lancaster?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Lancaster
What is Dr. Timothy Lancaster's specialty?
Dr. Lancaster is a Emergency Medicine Specialist near Oro Valley, AZ. An emergency physician is dedicated to making prompt decision and taking necessary actions essential for preventing death or additional disabilities. This role encompasses guiding emergency medical technicians in pre-hospital environments as well as providing care within the emergency department. The emergency physician is responsible for the immediate identification, evaluation, treatment, stabilization, and arrangement of a diverse array of adult and pediatric patients facing acute illnesses and injuries. Contact Dr. Lancaster to book an appointment today.
Is this Dr. Timothy Lancaster affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Lancaster is affiliated with Holy Name 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
Where can I learn more about Emergency Medicine Specialist?
Explore Emergency 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 Timothy Lancaster accepting new patients in Oro Valley, AZ?
Yes, Dr. Timothy Lancaster is accepting new patients at this time.
Does Dr. Timothy Lancaster offer online booking?
Please contact Dr. Lancaster's office at (520) 901-3500 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Timothy Lancaster?
Please contact Dr. Lancaster's office at (520) 901-3500 for information regarding telehealth appointment availability or for scheduling assistance.
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