DR. VIET DUY NGUYEN M.D.
NPI 1184019051
Internal Medicine - Nephrology in San Diego, CA

Q: What is Viet Nguyen's NPI number?

The NPI number for Viet Nguyen is 1184019051. It was assigned to this individual provider in the NPPES registry on March 30, 2015.

Q: What is Viet Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Viet Nguyen was last updated on June 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 30, 2015PECOS EnrolledAccepts Medicare Assignment

8885 RIO SAN DIEGO DR STE 212, SAN DIEGO, CA 92108(619) 299-2350(619) 297-8379 Get Directions Write a Review

NPPES record last updated: June 15, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 24, 2025, Aug 15, 2025, May 7, 2025 and 4 more (7 updates tracked since 2018).

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About Dr. Viet Duy Nguyen M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. VIET DUY NGUYEN M.D. (NPI 1184019051) is an individual nephrology provider in San Diego, California, licensed in California (A149088) and active in the NPI registry since March 2015. He is enrolled in Medicare PECOS and is a graduate of Virginia Commonwealth University, School Of Medicine (2015).

NPPES Registry Identity

NPI1184019051

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameDR. VIET DUY NGUYENCredential: M.D.

Location Address8885 RIO SAN DIEGO DR STE 212San Diego, CA 92108-1626

Mailing AddressPo Box 35380Las Vegas, NV 89133-5380

Phone(619) 299-2350

Fax(619) 297-8379

Sole ProprietorNo

Medical School CMSVirginia Commonwealth University, School Of MedicineGraduated 2015

Enumeration DateMarch 30, 2015

Last NPPES UpdateJune 15, 20267 updates tracked since enumeration

NPPES CertifiedJune 15, 2026

✔ NPI 1184019051 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in CA · A149088

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

8885 RIO SAN DIEGO DR STE 212, San Diego, CA 92108

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Other Identifiers 1

OtherA149088CA · Ca License

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Viet Duy Nguyen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8022449180

PECOS Enrollment IDI20200506000743

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Viet Nguyen reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Emergency And Acute Care Medical Corporation

1.9 mi

Emergency Medicine

7901 FROST ST
San Diego, CA 92123

Reassigned Medicare billing, California enrollment
1,437 clinicians in this Medicare group

NPI 1437103942 (858) 939-3400

On Call Specialists Medical Group Of San Diego, Inc.

2.1 mi

Specialist

4077 FIFTH AVE
San Diego, CA 92103

Reassigned Medicare billing, California enrollment
218 clinicians in this Medicare group

NPI 1962175836 (619) 294-8111

Family Health Centers Of San Diego Inc

2.1 mi

Federally Qualified Health Center (FQHC)

4094 4TH AVE
San Diego, CA 92103

Reassigned Medicare billing, California enrollment
1,100 clinicians in this Medicare group

NPI 1629456900 (619) 515-2545

Balboa Nephrology Medical Group, Inc.

4.2 mi

Nephrology

9373 HAZARD WAY STE 200
San Diego, CA 92123

Reassigned Medicare billing, California enrollment
85 clinicians in this Medicare group

NPI 1316997505 (858) 810-8000

Healthcare Partners Affiliates Medical Group

77 mi

Addiction Medicine

14591 NEWPORT AVE
Tustin, CA 92780

Reassigned Medicare billing, California enrollment
2,052 clinicians in this Medicare group

NPI 1891981502 (714) 442-4864

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 15

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

1,588 services217 patients

Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes 99458

This service involves analyzing your vital signs, like heart rate and blood pressure, remotely collected over a month. Each additional 20 minutes spent on management refers to extra time spent reviewing, interpreting your data, and planning your care. It's a critical part of ensuring your wellbeing.

853 services149 patients

Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 99457

This service involves reviewing and managing your health data, which is remotely monitored and collected. Your vital signs like heart rate and blood pressure are tracked regularly throughout the month. The first 20 minutes of this data analysis per month is included in this service.

573 services162 patients

Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 99454

This service involves using devices to remotely track body functions like heart rate or blood pressure. These devices, provided initially, record data daily or send alerts if readings are abnormal. The service is renewed every 30 days.

377 services128 patients

Hemodialysis procedure with physician evaluation 90935

Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.

261 services69 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

198 services90 patients

Dialysis services, 4 or more physician visits per month (20 years or older) 90960

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

146 services22 patients

Remote monitoring of physiologic parameters, initial set-up and patient education on use of equipment 99453

Remote monitoring of physiologic parameters involves using special equipment to track vital signs like heart rate and blood pressure from a distance. The initial set-up includes installing the device and teaching the patient how to use it correctly for accurate readings.

112 services112 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

111 services51 patients

Dialysis procedure including 1 evaluation 90945

Dialysis is a treatment that filters and purifies the blood when your kidneys can't do their job. The procedure involves circulating your blood through a machine that removes waste products. An evaluation is done beforehand to assess your health and determine the best approach for your treatment.

106 services14 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

100 services91 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

65 services59 patients

Dialysis services, 2-3 physician visits per month (20 years or older) 90961

Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.

29 services14 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

26 services26 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

12 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92108 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$140.22 typical visit price

range $62.10 – $184.71

Typical copayment $35.05 (range $15.52 – $46.17)

Most-billed visit code 99204

Established Patient

$108.42 typical visit price

range $20.62 – $151.42

Typical copayment $27.10 (range $5.15 – $37.85)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

1 supplier12 claims24 services$6.03 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511

Treatment-Chemotherapy · category RH012N

2 suppliers11 claims11 services$18.96 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARYAM SHAHAMFAR MD

Internal Medicine (Nephrology)