Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Feng, Internist in Santa Ana, CA?
Dr. John Feng, MD is an Internist, who primarily practices in Santa Ana, CA with 1 additional practice location. Dr. Feng is fluent in English, and is currently seeing new patients. Dr. Feng’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Feng’s office at (888) 789-9585.
What languages does Dr. Feng speak?
Dr. Feng and their clinical team can communicate with patients in the following languages:
English
What conditions does Dr. Feng treat?
As an Internist, Dr. Feng 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. Feng. 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:
- Other General Medical Examination
- Health Checkup
- General Health Checkup
- Comprehensive Medical Exam
- Miscellaneous Physical Exam
ICD-10 Codes:
- Z008: Encounter for other general examination
Also known as:
- Type 2 Diabetes with Chronic Kidney Disease
- Type 2 Diabetes with Diabetic Neuropathy
- Type 2 Diabetes
- Diabetes Type 2
- Diabetic Kidney Problems
- Type 2 diabetes
- Diabetic Nerve Problems
- Diabetic Neuropathy
- Diabetic Chronic Kidney Disease
- Long-term Kidney Failure from Type 2 Diabetes
- Type 2 Diabetes End-Stage Renal Disease
- Diabetic Nerve Damage
- Diabetic Polyneuropathy
- Peripheral Neuropathy from Diabetes
- Diabetes Mellitus Nerve Problems
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
ICD-10 Codes:
- E1122: Type 2 diabetes mellitus with diabetic chronic kidney disease
- E1142: Type 2 diabetes mellitus with diabetic polyneuropathy
- E119: Type 2 diabetes mellitus without complications
Also known as:
- Alzheimer's Disease
- Late-Onset Alzheimer's Disease
- Alzheimer's Disease Fact Sheet
- AD', 'Alzheimer's Dementia
- Memory Loss Disease
- Sporadic Alzheimer's', 'Alzheimer's in Older Adults
ICD-10 Codes:
- G309: Alzheimer's disease, unspecified
- G301: Alzheimer's disease with late onset
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- High Cholesterol
- Cholesterol
- Triglycerides
- Hyperlipidemia
- High lipids
- Dyslipidemia
ICD-10 Codes:
- E785: Hyperlipidemia, unspecified
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:
- Atrial Fibrillation
- Afib
- A-fib
- Irregular heart rhythm
ICD-10 Codes:
- I4891: Unspecified atrial fibrillation
Also known as:
- Parkinson's Disease
- PD
- Shaking Palsy
- Paralysis Agitans
ICD-10 Codes:
- G20: Parkinson's disease
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:
- Dementia
- Cognitive decline
- Memory loss
- Brain disorder
ICD-10 Codes:
- F0390: Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety
Also known as:
- Chronic Venous Insufficiency
- Vascular Disease
- CVI
- Venous Reflux Disease
- Leg Vein Incompetence
- Peripheral Venous Insufficiency
ICD-10 Codes:
- I872: Venous insufficiency (chronic) (peripheral)
Also known as:
- Pressure Sore
- Pressure Sores
- Bed Sore
- Decubitus Ulcer
- Pressure Ulcer
ICD-10 Codes:
- L89312: Pressure ulcer of right buttock, stage 2
Also known as:
- Left Lower Leg Open Wound
- Wounds and Injuries
- Left Lower Leg Injury
- Left Calf Wound
- Left Shin Wound
ICD-10 Codes:
- S81802D: Unspecified open wound, left lower leg, subsequent encounter
Also known as:
- Early-Onset Cerebellar Ataxia
- Cerebellar Disorder
- Movement Disorder
- Childhood Ataxia
- Juvenile Ataxia
- Cerebellar Dysfunction in Children
ICD-10 Codes:
- G1119: Other early-onset cerebellar ataxia
Also known as:
- Severe Obesity
- Obesity
- Helping Your Child Who Is Overweight
- Take Charge of Your Health: A Guide for Teenagers
- Understanding Adult Overweight & Obesity
- Morbid Obesity
- Extreme Obesity
- Class 3 Obesity
ICD-10 Codes:
- E6601: Morbid (severe) obesity due to excess calories
Also known as:
- Laceration of Right Elbow
- Wounds and Injuries
- Right Elbow Cut
- Right Elbow Gash
ICD-10 Codes:
- S51011D: Laceration without foreign body of right elbow, subsequent encounter
Also known as:
- Pneumonia
- Lung Infection
- Chest Infection
- Pneumonitis
ICD-10 Codes:
- J189: Pneumonia, unspecified organism
What procedures does Dr. Feng perform?
As an Internist, Dr. Feng 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. Feng. 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:
- Impacted Ear Wax Removal (One Ear)
- Cerumen Impaction Removal
- Ear Wax Extraction with Tools
- Professional Ear Cleaning
CPT Codes:
- 69210: Removal impacted cerumen requiring instrumentation, unilateral
Does Dr. Feng accept my insurance?
Dr. Feng accepts most major insurance plans. Important: Please call our office at (888) 789-9585 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Feng accept in Santa Ana, CA?
Dr. Feng in Santa Ana, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Centene
CVS Health (formerly Aetna)
FirstMerit Corporation
Humana
Medicare
State of California
State of Tennessee
View All Insurances
Where is Dr. Feng's office located?
Dr. John Feng's Primary Practice
3401 W Sunflower Ave Ste 100
Santa Ana, CA 92704
(888) 789-9585
What is Dr. Feng's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Feng's National Provider Identifier (NPI) number is 1346660081.
What common questions do patients ask about Dr. Feng?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Feng
What is Dr. John Feng's specialty?
Dr. Feng is a Internist near Santa Ana, 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. Feng to book an appointment today.Is this Dr. John Feng affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Feng is affiliated with UCI Health - Fountain Valley 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 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 John Feng accepting new patients in Santa Ana, CA?
Yes, Dr. John Feng is accepting new patients at this time.
Does Dr. John Feng offer online booking?
Please contact Dr. Feng's office at (888) 789-9585 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with John Feng?
Please contact Dr. Feng's office at (888) 789-9585 for information regarding telehealth appointment availability or for scheduling assistance.
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