KATHY NGUYEN FNP
NPI 1700459583
Nurse Practitioner - Family in Concord, CA

Q: What is Kathy Nguyen's NPI number?

The NPI number for Kathy Nguyen is 1700459583. It was assigned to this individual provider in the NPPES registry on July 20, 2021.

Q: What is Kathy Nguyen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for Kathy Nguyen was last updated on October 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 July 20, 2021PECOS EnrolledAccepts Medicare Assignment

2222 EAST ST STE 250, CONCORD, CA 94520(925) 609-7220 Get Directions Write a Review

NPPES record last updated: October 26, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 23, 2023, Mar 7, 2023, Jul 28, 2022 and 1 more (4 updates tracked since 2021).

On this page

About Kathy Nguyen Fnp NPPES

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

KATHY NGUYEN FNP (NPI 1700459583) is an individual family provider in Concord, California, licensed in California (95017788) and active in the NPI registry since July 2021. She is enrolled in Medicare PECOS, maintains a secondary practice location in Walnut Creek, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1700459583

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameKATHY NGUYENCredential: FNP

Location Address2222 EAST ST STE 250Concord, CA 94520-2096

Mailing Address1450 Treat Blvd # 300Walnut Creek, CA 94597-2168 · (925) 952-2828

Phone(925) 609-7220

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateJuly 20, 2021

Last NPPES UpdateOctober 26, 20254 updates tracked since enumeration

NPPES CertifiedOctober 26, 2025

✔ NPI 1700459583 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in CA · 95017788

2222 EAST ST STE 250, Concord, CA 94520

Open in Google Maps ↗

Secondary Practice Location 1

Location 1100 N Wiget Ln Ste 290Walnut Creek, CA 94598-5901 · Phone (925) 937-7740

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Kathy Nguyen Fnp 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 ID1052715299

PECOS Enrollment IDI20210810001285

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.

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

439 services312 patients

Urinalysis, manual test 81002

A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.

392 services307 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.

226 services200 patients

Ultrasound measurement of bladder capacity after voiding 51798

Ultrasound measurement of bladder capacity after voiding is a non-invasive test that uses sound waves to create images of your bladder. It's done after you've emptied your bladder to see if there's any leftover urine, which can help diagnose certain conditions.

172 services140 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

123 services123 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

98 services91 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.

96 services96 patients

Insertion of temporary bladder tube 51701

This procedure involves placing a small tube into your lower abdomen to help drain urine from your bladder. It's a temporary measure, often used when normal urination is not possible. The tube remains in place until you can urinate on your own again.

93 services70 patients

Simple bladder irrigation and/or instillation 51700

Bladder irrigation and/or instillation is a process where a sterile solution is introduced into the bladder to cleanse it or deliver medication. This procedure helps manage certain bladder conditions, ensuring optimal bladder health.

58 services48 patients

Electronic assessment of bladder emptying 51741

Electronic assessment of bladder emptying is a non-invasive test that measures how well your bladder functions. It uses ultrasound technology to create images of your bladder before and after you use the restroom, helping to identify any issues with bladder emptying.

43 services39 patients

Insertion of lower leg neurostimulator electrode 64566

The insertion of a lower leg neurostimulator electrode is a procedure where a small device is placed under your skin. This device sends mild electrical signals to nerves in the lower leg, helping to manage chronic pain. It's a safe, minimally invasive procedure.

40 services21 patients

Limited ultrasound scan of pelvis 76857

A limited ultrasound scan of the pelvis is a non-invasive imaging test. It uses high-frequency sound waves to create pictures of the lower abdomen area. This helps doctors view and assess the health of certain internal structures. It's painless and usually takes about 30 minutes.

21 services21 patients

Simple insertion of temporary bladder tube 51702

This procedure involves placing a temporary tube into your bladder to help with urine flow. It's done when the body can't naturally remove urine. The tube is inserted through a small opening and allows urine to drain into a bag. It's usually a short-term solution.

16 services11 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

16 services15 patients

Diagnostic exam of bladder and urethra using an endoscope 52000

This procedure involves using a thin, flexible tube with a light, called an endoscope, to examine the bladder and urethra. It helps in identifying any abnormalities or issues that may be causing discomfort or other symptoms.

15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94520 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

$104.51 typical visit price

range $69.00 – $202.35

Typical copayment $26.12 (range $17.25 – $50.58)

Most-billed visit code 99203

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

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.

Other Providers at the Same Location NPPES 3

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

JESSE DINH LE M.D.

Urology

2222 EAST ST STE 250
CONCORD, CA 94520

Contra Costa County (925) 609-7220

DR. WEI ZHENG M.D.

Urology

2222 EAST ST STE 250
CONCORD, CA 94520

Contra Costa County (925) 609-7220

CHARLES Y CHANG MD

Urology

2222 EAST ST STE 250
CONCORD, CA 94520

Contra Costa County (925) 609-7220

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Kathy Nguyen's NPI number?

The NPI number for Kathy Nguyen is 1700459583. It was assigned to this individual provider in the NPPES registry on July 20, 2021.

Where is Kathy Nguyen located?

Kathy Nguyen practices at 2222 East St Ste 250, Concord, CA 94520. The listed phone number is (925) 609-7220.

What is Kathy Nguyen's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Kathy Nguyen enrolled in Medicare?

Yes. Kathy Nguyen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Kathy Nguyen was last updated on October 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.