NIKKI KWOKSAM DUONG MD
NPI 1164884284
Internal Medicine - Gastroenterology in Palo Alto, CA

Active since March 28, 2016PECOS EnrolledAccepts Medicare Assignment
300 PASTEUR DR, PALO ALTO, CA 94304(650) 723-4000 Get Directions Write a Review

NPPES record last updated: March 16, 2024. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jul 3, 2019, Mar 28, 2016 (2 updates tracked since 2016).

About Nikki Kwoksam Duong Md NPPES

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

NIKKI KWOKSAM DUONG MD (NPI 1164884284) is an individual gastroenterology provider in Palo Alto, California, licensed in California (A192254) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, maintains a secondary practice location in Washington, and is a graduate of George Washington University School Of Medicine (2016).

NPPES Registry Identity

NPI1164884284
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameNIKKI KWOKSAM DUONGCredential: MD
Location Address300 PASTEUR DRPalo Alto, CA 94304-2203
Mailing Address300 Pasteur DrPalo Alto, CA 94304-2203 · (650) 723-4000
Sole ProprietorYes
Medical School CMSGeorge Washington University School Of MedicineGraduated 2016
Enumeration DateMarch 28, 2016
Last NPPES UpdateMarch 16, 20242 updates tracked since enumeration
NPPES CertifiedMarch 16, 2024
NPI 1164884284 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License Licensed in CA · A192254
Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X · License A192254 (CA)
Also ListedInternal Medicine · Transplant HepatologyTaxonomy 207RT0003X · License A192254 (CA)
Also ListedHospitalistTaxonomy 208M00000X · License MD045392 (DC)
300 PASTEUR DR, Palo Alto, CA 94304

Secondary Practice Location 1

Location 13800 Reservoir Rd NW Dept OfWashington, DC 20007-2113 · Phone (202) 444-8168

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

Nikki Kwoksam Duong 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 ID3173864055
PECOS Enrollment IDI20240105001417
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 7

Services this provider delivered to Medicare fee-for-service patients, from the 2024 & 2026 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 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.
188 services48 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.
104 services73 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
38 services38 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.
30 services30 patients
Measurement of liver stiffness 91200
Measurement of liver stiffness is a non-invasive procedure that helps assess the health of your liver. It uses sound waves to detect the hardness of the liver tissue, which can indicate conditions like fibrosis or cirrhosis. It's a simple, painless test that provides valuable information about your liver's health.
27 services27 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
21 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94304 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.

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.

Anesthesiology
300 PASTEUR DR
PALO ALTO, CA 94304
Pediatrics
300 PASTEUR DR, SUMC - PEDS PHYSICIAN BILLING MC: 5530
PALO ALTO, CA 94304
Physical Therapist
300 PASTEUR DR
PALO ALTO, CA 94304
Physical Medicine & Rehabilitation
300 PASTEUR DR
PALO ALTO, CA 94304
Internal Medicine (Gastroenterology)
300 PASTEUR DR
PALO ALTO, CA 94304
Anesthesiology
300 PASTEUR DR, DEPARTMENT OF ANESTHESIA, H3580
PALO ALTO, CA 94304
Emergency Medicine
300 PASTEUR DR
PALO ALTO, CA 94304
Nurse Practitioner (Pediatrics)
300 PASTEUR DR
PALO ALTO, CA 94304

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1164884284, enumerated as an "individual" on March 28, 2016.

The provider is located at 300 PASTEUR DR PALO ALTO, CA 94304 and the phone number is (650) 723-4000.

Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.