Physician Profile
Unclaimed ProfileAbout NGUYEN
Richard X Nguyen, M.D. is a healthcare provider in Oxnard, CA specialising in internal medicine. Richard trained at R Franklin University of Med & Sci/Chicago Medical School, graduating in 1994. Richard is also listed as specialising in pediatrics.
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
Areas of Expertise
Common questions
What does Dr. Nguyen specialise in?
Dr. Nguyen is an internal medicine in Oxnard, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Nguyen located?
Dr. 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 Dr. Nguyen's phone number?
The number on file is (805) 485-9123. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Nguyen's NPI number?
Dr. 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 Dr. Nguyen go to medical school?
Dr. 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 Dr. Nguyen been practising?
Dr. Nguyen has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Nguyen do most often?
According to Medicare billing data, Dr. 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 Dr. Nguyen confirmed this information?
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (805) 485-9123
- Email not available
Practice Locations
719 N A ST
Oxnard, CA 93030
Procedures Most Often Billed to Medicare
8,624 services · 2,506 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
687 |
| Influenza vaccine, trivalent, 0.5 ml dosage | Treatment | 90658 |
122 |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | Drug given | J3420 |
399 |
| Injection, dexamethasone sodium phosphate, 1 mg | Drug given | J1100 |
130 |
| Injection, ketorolac tromethamine, per 15 mg | Drug given | J1885 |
118 |
| Care management services for behavioral health conditions, 20 minutes or more clinical staff time directed by health care professional | Office visit | 99484 |
2,234 |
| 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 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
893 |
| Blood glucose (sugar) level after receiving dose of glucose | Lab test | 82950 |
251 |
| Advance care planning, first 30 minutes | Office visit | 99497 |
221 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated 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 internal medicines 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.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.