Physician Profile
Tuan Xuan Nguyen, MD
Unclaimed ProfileAbout Dr. Nguyen
Based in Garden Grove, CA, Tuan Xuan Nguyen, MD is listed in the NPI registry under internal medicine. Tuan Xuan graduated from University of Oklahoma College of Medicine in 1989. Medicare claims data shows Tuan Xuan provided 7,798 services to 1,792 patients. The services billed most often include chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month, management using the results of remote vital sign monitoring per calendar month, first 20 minutes, and remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days. NPI 1679519821 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (714) 530-2420
- Email not available
Practice Locations
14221 EUCLID ST STE H
Garden Grove, CA 92843
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
Most searched conditions
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
- Chronic kidney disease
- Enlarged prostate
Respiratory
Blood & Circulation
- Blood clots
Blood disorders
- Anemia
Brain & Nerves
Brain and nerves
- Vertigo
Cardiac and vascular
- AFib
Digestive
Heart & Circulation
- Heart disease
Infections
- Impetigo
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive and evaluation
- Medication management
- Post-hospital transitional care
Screening and diagnostic testing
- EKG
- Spirometry
Bones & Joints
- Trigger Point Injections
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
- Endoscopy
Exams & Consultations
- Pre-Op Clearance Exam
Heart & Circulation
- Blood Pressure Check
- Heart monitor
Heart health
- Cardiac Stress Test Referral
Imaging referral
- Abdominal Ultrasound Referral
Immunizations
Lab tests
- Urinalysis
Lungs & Breathing
- At-Home Sleep Study Order
Metabolic & Weight
- Weight Loss Injections and Medication
Minor procedures
- Ingrown toenail removal
- Suture removal
Office procedures
- Cryotherapy for skin lesions
- Earwax removal
- Incision and drainage of an abscess
- Skin biopsy
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
- Knee Joint Injection
Preventive & Routine Care
Screenings & Diagnostics
- Bone Density Scan Referral
- Diabetes Screening and A1C Test
Sexual health
- STI Testing
Procedures Most Often Billed to Medicare
7,798 services · 1,792 patients · 14 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
174 | As often as other peers in Internal Medicine |
| Ultrasound study of arm and leg arteries | Treatment | 93922 |
159 | More often than most peers in Internal Medicine |
| Influenza vaccine, inactivated | Treatment | 90653 |
66 | More often than most peers in Internal Medicine |
| Influenza vaccine, trivalent derived from cell cultures | Treatment | 90661 |
38 | As often as other peers in Internal Medicine |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
12 | Less often than most peers in Internal Medicine |
| Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | Office visit | 99490 |
1,811 | More than most peers in Internal Medicine |
| Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | Office visit | 99457 |
1,763 | More than most peers in Internal Medicine |
| Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | Office visit | 99454 |
1,611 | More than most peers in Internal Medicine |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
945 | More than most peers in Internal Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
795 | More than most peers in Internal Medicine |
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.
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.
Other internists in Garden Grove 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Oklahoma College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1989 at University of Oklahoma College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Nguyen specialize in?
Dr. Nguyen is an internist in Garden Grove, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Dr. Nguyen located?
Dr. Nguyen is listed at 14221 Euclid St Ste H, Garden Grove, CA 92843. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Nguyen's phone number?
The number on file is (714) 530-2420. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Nguyen?
Dr. Nguyen's National Provider Identifier is 1679519821. 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. Nguyen go to medical school?
Dr. Nguyen attended University of Oklahoma College of Medicine, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Nguyen have?
Dr. Nguyen has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Nguyen do most often?
According to Medicare billing data, Dr. Nguyen performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as ultrasound study of arm and leg arteries and influenza vaccine, inactivated, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Nguyen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Nguyen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.