AH
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Harn, Internist in Tustin, CA?
Dr. Abraham Harn, DO is an Internist, who primarily practices in Tustin, CA with 2 additional practice locations. He is board certified. Dr. Harn is fluent in English and Chinese, and is currently seeing new patients. Dr. Harn’s practice accepts Cigna, Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Harn’s office.
What languages does Dr. Harn speak?
Dr. Harn and their clinical team can communicate with patients in the following languages:
Chinese
English
What conditions does Dr. Harn treat?
As a Internist, Dr. Harn 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. Harn. 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:
- Sepsis
- Blood Poisoning
- Septicemia
- Systemic Bacterial Infection
ICD-10 Codes:
- A419: Sepsis, unspecified organism
- A4189: Other specified sepsis
Also known as:
- Chest Pain
- Chest discomfort
- Thoracic pain
- Pectoral pain
ICD-10 Codes:
- R0789: Other chest 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:
- Acute Respiratory Failure with Low Oxygen
- Respiratory Failure
- Sudden lung failure with low oxygen
- Hypoxic respiratory failure
- Acute breathing failure with hypoxia
ICD-10 Codes:
- J9601: Acute respiratory failure with hypoxia
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Atrial Fibrillation
- Afib
- A-fib
- Irregular heart rhythm
ICD-10 Codes:
- I4891: Unspecified atrial fibrillation
- I480: Paroxysmal atrial fibrillation
Also known as:
- Heart Attack (NSTEMI)
- Heart Attack
- Myocardial Infarction
- Non-STEMI
- Less Severe Heart Attack
ICD-10 Codes:
- I214: Non-ST elevation (NSTEMI) myocardial infarction
Also known as:
- Pneumonia
- Lung Infection
- Chest Infection
- Pneumonitis
ICD-10 Codes:
- J189: Pneumonia, unspecified organism
Also known as:
- Muscle Weakness
- Muscle Disorder
- Loss of strength
- Fatigue
- Muscle fatigue
ICD-10 Codes:
- R531: Weakness
Also known as:
- Fainting
- Syncope
- Passing out
- Collapse
ICD-10 Codes:
- R55: Syncope and collapse
Also known as:
- Gastrointestinal Bleeding
- Gastrointestinal (GI) Bleeding
- GI Bleeding
- Internal Digestive Bleeding
- Digestive Tract Hemorrhage
ICD-10 Codes:
- K922: Gastrointestinal hemorrhage, unspecified
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:
- Ischemic Stroke
- Brain Attack
- Cerebral Infarction
- Brain Ischemia
ICD-10 Codes:
- I6389: Other cerebral infarction
Also known as:
- Acute Kidney Failure
- Kidney Failure
- Acute Renal Failure
- Sudden Kidney Failure
ICD-10 Codes:
- N179: Acute kidney failure, 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:
- Acute Kidney Failure with Tubule Damage
- Kidney Failure
- Acute Tubular Necrosis
- ATN
- Kidney Tubule Death
ICD-10 Codes:
- N170: Acute kidney failure with tubular necrosis
Also known as:
- Low Sodium Levels
- Fluid and Electrolyte Balance
- Sodium
- Hyponatremia
- Low Blood Sodium
- Sodium Deficiency
ICD-10 Codes:
- E871: Hypo-osmolality and hyponatremia
Also known as:
- Metabolic Brain Disorder
- Brain Disease
- Metabolic Encephalopathy
- Brain Dysfunction from Metabolism
ICD-10 Codes:
- G9341: Metabolic encephalopathy
Which procedures does Dr. Harn perform as a Internist?
As a Internist, procedures performed by an Dr. Abraham Harn 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
For detailed information, please contact Dr. Harn's office.
Does Dr. Harn accept my insurance?
Dr. Harn accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Harn accept in Tustin, CA?
Dr. Harn in Tustin, 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
Altamed Health Services
Blue Shield of California
CalOptima
Elevance Health Inc. (formerly Anthem)
Medicare
Monarch HealthCare
OptumRx
Other Health Care Provider
State of California
View All Insurances
Where is Dr. Harn's office located?
What is Dr. Harn's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Harn's National Provider Identifier (NPI) number is 1003337122.
What common questions do patients ask about Dr. Harn?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Harn
What is Dr. Abraham Harn's specialty?
Dr. Harn is a Internist near Tustin, CA.
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.
Contact Dr. Harn to book an appointment today.Is this Dr. Abraham Harn affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Harn is affiliated with Ahmc Anaheim Regional Medical Center, Orange County Global Medical Center, Uci Health - Placentia Linda, Uci 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
Where can I learn more about Internist?
Explore Internist 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 Abraham Harn accepting new patients in Tustin, CA?
Yes, Dr. Abraham Harn is accepting new patients at this time.
Does Dr. Abraham Harn offer online booking?
Please contact Dr. Harn's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Abraham Harn?
Please contact Dr. Harn's office for information regarding telehealth appointment availability or for scheduling assistance.
Other Internist Near Tustin, CA
LC
Hospitalist
Accepting patientsDr. Lawrence Chau, DO is a Hospitalist, who primarily practices in Tustin, CA with 2 additional practice locations. He is board certified.
Tustin, CA
GG
Pulmonologist
Accepting patientsDr. George Girgis, MD is a Pulmonologist, who primarily practices in Tustin, CA with 2 additional practice locations. He is board certified.
Tustin, CA
SV
Internist
Accepting patientsDr. Suresh Veeramachaneni, MD is an Internist, who primarily practices in Tustin, CA with 2 additional practice locations. He has been practicing for over 20 years and is board certified by the American Board of Internal Medicine.
Tustin, CA