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DR. REGINALD NGUYEN MD
NPI 1144859752
Emergency Medicine in Mountain View, CA

Active since April 06, 2020PECOS EnrolledAccepts Medicare Assignment
2500 GRANT RD, MOUNTAIN VIEW, CA 94040(650) 940-7055 Get Directions Write a Review

NPPES record last updated: November 14, 2024. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 14, 2024, Apr 6, 2020 (2 updates tracked since 2020).

About Dr. Reginald Nguyen Md NPPES

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

DR. REGINALD NGUYEN MD (NPI 1144859752) is an individual emergency medicine provider in Mountain View, California, licensed in California (A189843) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS and is a graduate of Oakland Univ, William Beaumont School Of Medicine (2020).

NPPES Registry Identity

NPI1144859752
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. REGINALD NGUYENCredential: MD
Location Address2500 GRANT RDMountain View, CA 94040-4302
Mailing Address505 Parnassus Ave Rm M24San Francisco, CA 94143-2204 · (415) 353-1529
Phone(650) 940-7055
Sole ProprietorYes
Medical School CMSOakland Univ, William Beaumont School Of MedicineGraduated 2020
Enumeration DateApril 6, 2020
Last NPPES UpdateNovember 14, 20242 updates tracked since enumeration
NPPES CertifiedNovember 14, 2024
✔ NPI 1144859752 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A189843
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
2500 GRANT RD, Mountain View, CA 94040
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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

Dr. Reginald Nguyen Md 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 ID5496124190
PECOS Enrollment IDI20231201002531
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 3

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
62 services61 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.
17 services17 patients
Ultrasound scan of chest 76604
An ultrasound scan of the chest is a non-invasive imaging procedure that uses sound waves to create pictures of the structures within your chest, such as your heart and lungs. It's a safe, painless method that helps doctors diagnose and monitor various conditions.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94040 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
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
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 20

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

BARBARA MOCNIK APRN
Registered Nurse (Psychiatric/Mental Health, Adult)
2500 GRANT RD
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 940-7187
DR. JONATHAN TODD ENGELHARDT MD
Emergency Medicine
2500 GRANT RD
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 940-7000
DR. SHAWN MATHEW JACOB MD
Internal Medicine
2500 GRANT RD
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 940-7000
NADIA KIRMANI
Student in an Organized Health Care Education/Training Program
2500 GRANT RD
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 940-7000
KELLEY DAVIS MS, RD
Dietitian, Registered
2500 GRANT RD, LPCH-4C
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 988-4111
TROY THOAI LAM MD
Internal Medicine
2500 GRANT RD
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 374-0001
MAX LEE
Student in an Organized Health Care Education/Training Program
2500 GRANT RD
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 940-7000
MS. TOVAH SHOSHANA KROKOSZYNSKI PSYD
Counselor (Mental Health)
2500 GRANT RD
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 988-3255

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 Reginald Nguyen's NPI number?

The NPI number for Reginald Nguyen is 1144859752. It was assigned to this individual provider in the NPPES registry on April 6, 2020.

Where is Reginald Nguyen located?

Reginald Nguyen practices at 2500 Grant Rd, Mountain View, CA 94040. The listed phone number is (650) 940-7055.

What is Reginald Nguyen's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Reginald Nguyen enrolled in Medicare?

Yes. Reginald 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 Reginald Nguyen was last updated on November 14, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.