DR. TAN MICHAEL NGUYEN MD
NPI 1003256843
Internal Medicine in Sunnyvale, CA

Active since June 25, 2013PECOS EnrolledAccepts Medicare Assignment
301 OLD SAN FRANCISCO RD, SUNNYVALE, CA 94086(408) 730-4360 Get Directions Write a Review

NPPES record last updated: October 10, 2016. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Tan Michael Nguyen Md NPPES

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

DR. TAN MICHAEL NGUYEN MD (NPI 1003256843) is an individual internal medicine provider in Sunnyvale, California, licensed in California (A140731) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (2013).

NPPES Registry Identity

NPI1003256843
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. TAN MICHAEL NGUYENCredential: MD
Location Address301 OLD SAN FRANCISCO RDSunnyvale, CA 94086-6386
Mailing Address2350 W. El Camino Real, 2nd FloorMountain View, CA 94040-6203
Sole ProprietorNo
Medical School CMSAlbert Einstein College Of Medicine Of Yeshiva UniversityGraduated 2013
Enumeration DateJune 25, 2013
Last NPPES UpdateOctober 10, 2016
NPI 1003256843 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in CA · A140731
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

301 OLD SAN FRANCISCO RD, Sunnyvale, CA 94086

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. Tan Michael 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 ID9537457064
PECOS Enrollment IDI20161014001914
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 11

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 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.
275 services158 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.
125 services98 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
90 services90 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
38 services38 patients
Influenza vaccine, inactivated 90653
The Influenza vaccine, inactivated, is a shot given to protect against the flu. It contains killed virus particles that help your body build immunity to the flu. It's recommended annually to keep your protection up-to-date. It's safe for ages 6 months and up.
34 services34 patients
Administration of pneumococcal vaccine G0009
The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.
19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94086 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
$156.67 typical visit price
range $70.37 – $206.04
Typical copayment $39.16 (range $17.59 – $51.51)
Most-billed visit code 99204
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.

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
17 suppliers36 claims86 services$5.51 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
10 suppliers14 claims18 services$0.89 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 20

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

Family Medicine
301 OLD SAN FRANCISCO RD
SUNNYVALE, CA 94086
Internal Medicine
301 OLD SAN FRANCISCO RD
SUNNYVALE, CA 94086
Obstetrics & Gynecology
301 OLD SAN FRANCISCO RD
SUNNYVALE, CA 94086
Family Medicine
301 OLD SAN FRANCISCO RD
SUNNYVALE, CA 94086
Internal Medicine (Hematology & Oncology)
301 OLD SAN FRANCISCO RD
SUNNYVALE, CA 94086
Internal Medicine
301 OLD SAN FRANCISCO RD
SUNNYVALE, CA 94086
Pediatrics
301 OLD SAN FRANCISCO RD
SUNNYVALE, CA 94086
Pediatrics (Pediatric Hematology-Oncology)
301 OLD SAN FRANCISCO RD
SUNNYVALE, CA 94086

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 Tan Nguyen's NPI number?

The NPI number for Tan Nguyen is 1003256843. It was assigned to this individual provider in the NPPES registry on June 25, 2013.

Where is Tan Nguyen located?

Tan Nguyen practices at 301 Old San Francisco Rd, Sunnyvale, CA 94086. The listed phone number is (408) 730-4360.

What is Tan Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Tan Nguyen enrolled in Medicare?

Yes. Tan 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 Tan Nguyen was last updated on October 10, 2016. NPI Profile syncs with the weekly NPPES data releases published by CMS.