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Edit this profileAt a glance
- 719 N A St, Oxnard, CA 93030
About Dr. Nguyen
Richard X. Nguyen, M.D. is a healthcare provider in Oxnard, CA specializing in internal medicine. Richard trained at R Franklin University of Med & Sci/Chicago Medical School, graduating in 1994. Richard is also listed as specializing in pediatrics. According to Medicare claims data, Richard cared for 2,506 Medicare patients across 8,624 services. The services billed most often include care management services for behavioral health conditions, 20 minutes or more clinical staff time directed by health care professional, chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. This provider record is associated with NPI 1699960708.
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
- (805) 485-9123
- Email not available
Practice Locations
719 N A ST
Oxnard, CA 93030
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
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
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
Bones & Joints
Brain and nerves
Cancer screening
- Colon Cancer Screening Referral
- Mammogram Referral
Digestive
Exams & Consultations
Heart & Circulation
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
Office procedures
Office Procedures
- Skin Tag and Mole Removal
- Vitamin B12 Injections
- Wart Removal
Pain management
Preventive & Routine Care
Screenings & Diagnostics
- Bone Density Scan Referral
- Diabetes Screening and A1C Test
Sexual health
- STI Testing
Procedures Most Often Billed to Medicare
8,624 services · 2,506 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
687 | More than most peers in Internal Medicine |
| Influenza vaccine, trivalent, 0.5 ml dosage | Treatment | 90658 |
122 | More than most peers in Internal Medicine |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | Drug given | J3420 |
399 | More than most peers in Internal Medicine |
| Injection, dexamethasone sodium phosphate, 1 mg | Drug given | J1100 |
130 | As often as other peers in Internal Medicine |
| Injection, ketorolac tromethamine, per 15 mg | Drug given | J1885 |
118 | More often than most peers in Internal Medicine |
| Care management services for behavioral health conditions, 20 minutes or more clinical staff time directed by health care professional | Office visit | 99484 |
2,234 | More than most peers in Internal Medicine |
| Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month | Office visit | 99491 |
1,842 | 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 |
893 | More than most peers in Internal Medicine |
| Blood glucose (sugar) level after receiving dose of glucose | Lab test | 82950 |
251 | Too few peers to compare |
| Advance care planning, first 30 minutes | Office visit | 99497 |
221 | More often 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.
Also at this address 1
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 Oxnard 8
Same specialty, same city.
Trained at R Franklin University of Med & Sci/Chicago Medical School 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1994 at R Franklin University of Med & Sci/Chicago Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of drug or substance under skin or into muscle 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Richard X. Nguyen specialize in?
Richard X. Nguyen is an internist in Oxnard, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Richard X. Nguyen located?
Richard X. Nguyen is listed at 719 N A St, Oxnard, CA 93030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Richard X. Nguyen's phone number?
The number on file is (805) 485-9123. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Richard X. Nguyen's NPI number?
Richard X. Nguyen's National Provider Identifier is 1699960708. 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 Richard X. Nguyen train?
Richard X. Nguyen attended R Franklin University of Med & Sci/Chicago Medical School, graduating in 1994. This comes from the CMS National Downloadable File.
CMS public data
How long has Richard X. Nguyen been practicing?
Richard X. Nguyen has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
What does Richard X. Nguyen do most often?
According to Medicare billing data, Richard X. Nguyen provides treatments such as injection of drug or substance under skin or into muscle and influenza vaccine, trivalent, 0.5 ml dosage, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Richard X. Nguyen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Richard X. Nguyen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.