Physician Profile
Gary E Deng, MD
Unclaimed ProfileAbout Dr. Deng
Gary E Deng, MD practices internal medicine in Irvine, CA. Medicare claims data shows Gary provided 295 services to 277 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
NPI-Registered Specialty
Credentials & Registry Details
Source: NPPES NPI Registry
Contact Information
- (949) 824-7000
- Email not available
Practice Locations
856 HEALTH SCIENCES RD STE 2600
Irvine, CA 92617
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Cardiometabolic
- High blood pressure (hypertension)
- High cholesterol and lipid disorders
- Metabolic syndrome
- Overweight and obesity
- Peripheral artery disease
- Prediabetes
- Stable coronary artery disease
- Type 2 diabetes
Digestive and liver
- Acid reflux (GERD)
- Alcohol-associated liver disease
- Constipation
- Diverticulosis and uncomplicated diverticulitis
- Fatty liver disease
- Irritable bowel syndrome
- Peptic ulcer disease
Endocrine, blood, and bone
- Anemia of chronic disease
- Gout
- Iron-deficiency anemia
- Osteoporosis
- Overactive thyroid (hyperthyroidism)
- Underactive thyroid (hypothyroidism)
- Vitamin B12 deficiency
- Vitamin D deficiency
Infectious disease
Kidney and urinary
- Acute kidney injury
- Chronic kidney disease
- Enlarged prostate (BPH)
- Overactive bladder
- Urinary tract infection
Respiratory
- Acute bronchitis
- Asthma
- Chronic obstructive pulmonary disease
- Community-acquired pneumonia
- Obstructive sleep apnea
Cardiac and vascular
- Atrial fibrillation
- Blood clots (DVT and pulmonary embolism)
- Chronic venous insufficiency
- Heart failure
- Stable angina
Neurologic and behavioral
Rheumatologic and pain
Procedures & services
Preventive and evaluation
- Annual physical and preventive visit
- Chronic disease management
- Medicare annual wellness visit
- Medication review and management
- Post-hospital transitional care
- Preoperative medical clearance
Screening and diagnostic testing
- Ambulatory blood-pressure monitoring
- Blood pressure screening
- Cancer screening and prevention planning
- Cholesterol screening
- Depression screening
- Diabetes and prediabetes screening
- Electrocardiogram
- Spirometry
Office procedures
Procedures Most Often Billed to Medicare
295 services · 277 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
97 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
96 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
36 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
36 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
18 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
12 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internal medicines at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Other internal medicines in Irvine 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1987 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Deng specialize in?
Dr. Deng is an internal medicine in Irvine, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Deng located?
Dr. Deng is listed at 856 HEALTH SCIENCES RD STE 2600, Irvine, CA 92617. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Deng's phone number?
The number on file is (949) 824-7000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Deng?
Dr. Deng's National Provider Identifier is 1780655233. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Deng go to medical school?
Dr. Deng attended Other, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Deng have?
Dr. Deng has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Deng do most often?
According to Medicare billing data, Dr. Deng the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Deng's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Deng. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.