DR. RICHARD THE NGUYEN DO
NPI 1023185030
Surgery in Los Gatos, CA

Q: What is Richard Nguyen's NPI number?

The NPI number for Richard Nguyen is 1023185030. It was assigned to this individual provider in the NPPES registry on November 29, 2006.

Q: What is Richard Nguyen's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Q: When was this NPI record last updated?

The NPPES record for Richard Nguyen was last updated on February 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 November 29, 2006PECOS EnrolledAccepts Medicare Assignment

15965 LOS GATOS BLVD STE 201, LOS GATOS, CA 95032(408) 358-1855(408) 356-4183 Get Directions Write a Review

NPPES record last updated: February 28, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 28, 2025, Mar 7, 2023, Dec 13, 2019 (3 updates tracked since 2019).

On this page

About Dr. Richard The Nguyen Do NPPES

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

DR. RICHARD THE NGUYEN DO (NPI 1023185030) is an individual surgery provider in Los Gatos, California, licensed in California (20A10031) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2001).

NPPES Registry Identity

NPI1023185030

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameDR. RICHARD THE NGUYENCredential: DO

Location Address15965 LOS GATOS BLVD STE 201Los Gatos, CA 95032-3415

Mailing Address15965 Los Gatos Blvd Ste 201Los Gatos, CA 95032-3415 · (408) 358-1855 · Fax (408) 356-4183

Phone(408) 358-1855

Fax(408) 356-4183

Sole ProprietorYes

Medical School CMSOtherGraduated 2001

Enumeration DateNovember 29, 2006

Last NPPES UpdateFebruary 28, 20253 updates tracked since enumeration

NPPES CertifiedFebruary 28, 2025

✔ NPI 1023185030 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

Licenses✔ Licensed in CA · 20A10031✔ Licensed in TN · DO1813

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

15965 LOS GATOS BLVD STE 201, Los Gatos, CA 95032

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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. Richard The Nguyen Do 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 ID7719087063

PECOS Enrollment IDI20071121000596

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 Reassignment

Medicare enrollment records show Richard Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Bass Medical Group

33 mi

Orthopaedic Surgery

19842 LAKE CHABOT RD
Castro Valley, CA 94546

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

NPI 1093181646 (510) 886-8844

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 12

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.

Insertion of cage or mesh device to spine bone and disc space during spine fusion 22853

Spine fusion is a procedure to join two or more vertebrae. During this process, a cage or mesh device is inserted into the spine bone and disc space. This helps to stabilize the spine, reduce pain, and improve functionality. The device acts as a bridge for new bone to grow on.

155 services83 patients

Fusion of lower spine bone through abdomen with partial removal of disc 22558

This procedure involves merging the bones in your lower spine through an abdominal approach. A portion of the disc, which acts like a cushion between your vertebrae, is partially removed. The goal is to alleviate back pain by limiting movement in the problem area of your spine.

88 services88 patients

Release of scar tissue at ureter 50715

This procedure involves removing scar tissue from a tube in your body that carries liquid waste from your kidneys to your bladder. Scar tissue can block this tube, causing discomfort and health issues. The goal is to restore normal function and alleviate any symptoms.

88 services88 patients

Fusion of spine bones through front of body with partial removal of disc, each additional disc 22585

This procedure involves merging spine bones via the front of the body. A portion of each additional disc is removed to ease pressure and discomfort. This helps to stabilize the spine and improve mobility.

71 services60 patients

Placement of stabilizing device to front, 2-3 spine bone segments 22845

This procedure involves positioning a stabilizing device on the front of 2-3 segments of your spine. It's designed to provide support and stability to your spine, potentially alleviating discomfort and improving mobility.

70 services70 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.

41 services23 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.

35 services35 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.

31 services31 patients

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.

24 services18 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

21 services21 patients

Removal of gallbladder using an endoscope 47562

This procedure, known as endoscopic gallbladder removal, involves a surgeon using a special tool called an endoscope to remove your gallbladder through small incisions. It's typically done to treat gallstones and related complications. It's a less invasive method, often leading to quicker recovery.

19 services19 patients

Incision of windpipe for insertion of breathing tube (older than 2 years) 31600

This procedure, called a tracheostomy, involves creating an opening in the neck to reach the windpipe. A tube is then inserted to help with breathing. It's typically done when there's an obstruction or difficulty breathing through the mouth or nose.

12 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95032 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

$106.47 typical visit price

range $70.37 – $206.04

Typical copayment $26.61 (range $17.59 – $51.51)

Most-billed visit code 99203

Established Patient

$86.56 typical visit price

range $23.96 – $169.60

Typical copayment $21.64 (range $5.99 – $42.40)

Most-billed visit code 99213

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.

MR. MARC M ZARE MD

Surgery

15965 LOS GATOS BLVD STE 201
LOS GATOS, CA 95032

Santa Clara County (408) 358-1855

MARC M. ZARE, M.D., A MEDICAL CORPORATION

Surgery

15965 LOS GATOS BLVD STE 201
LOS GATOS, CA 95032

Santa Clara County (408) 358-1855

AVERY JOSEPH DO

Surgery

15965 LOS GATOS BLVD STE 201
LOS GATOS, CA 95032

Santa Clara County (408) 358-1855

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 Richard Nguyen's NPI number?

The NPI number for Richard Nguyen is 1023185030. It was assigned to this individual provider in the NPPES registry on November 29, 2006.

Where is Richard Nguyen located?

Richard Nguyen practices at 15965 Los Gatos Blvd Ste 201, Los Gatos, CA 95032. The listed phone number is (408) 358-1855.

What is Richard Nguyen's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Richard Nguyen enrolled in Medicare?

Yes. Richard 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.

Which organization bills Medicare for Richard Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Richard Nguyen reassigns Medicare benefits to Bass Medical Group (Castro Valley, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Richard Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Richard Nguyen was last updated on February 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.