THOMAS YANG SUN MD
NPI 1215468160
Internal Medicine - Medical Oncology in Pleasanton, CA

Active since March 22, 2017PECOS EnrolledAccepts Medicare Assignment
5725 W LAS POSITAS BLVD STE 100A, PLEASANTON, CA 94588(925) 734-8130 Get Directions Write a Review

NPPES record last updated: April 29, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 29, 2024, Jul 13, 2023, Mar 22, 2017 (3 updates tracked since 2017).

About Thomas Yang Sun Md NPPES

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

THOMAS YANG SUN MD (NPI 1215468160) is an individual medical oncology provider in Pleasanton, California, licensed in California (A157081) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS and is a graduate of Yale University School Of Medicine (2017).

NPPES Registry Identity

NPI1215468160
Entity TypeIndividualMale
Primary Taxonomy207RX0202X
Provider Legal NameTHOMAS YANG SUNCredential: MD
Location Address5725 W LAS POSITAS BLVD STE 100APleasanton, CA 94588-4054
Mailing Address5725 W Las Positas Blvd Ste 100aPleasanton, CA 94588-4054 · (925) 734-8130
Sole ProprietorNo
Medical School CMSYale University School Of MedicineGraduated 2017
Enumeration DateMarch 22, 2017
Last NPPES UpdateApril 29, 20243 updates tracked since enumeration
NPPES CertifiedApril 29, 2024
NPI 1215468160 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License Licensed in CA · A157081
Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

Also ListedInternal MedicineTaxonomy 207R00000X · License A157081 (CA)
Also ListedInternal Medicine · HematologyTaxonomy 207RH0000X · License A157081 (CA)
5725 W LAS POSITAS BLVD STE 100A, Pleasanton, CA 94588

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

Thomas Yang Sun 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 ID345600474
PECOS Enrollment IDI20230720001170
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 17

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 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.
581 services147 patients
Injection, dexamethasone sodium phosphate, 1 mg J1100
Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.
450 services12 patients
Injection, palonosetron hcl, 25 mcg J2469
Palonosetron HCL is an injection used to prevent nausea and vomiting caused by chemotherapy. It works by blocking a natural substance (serotonin) in the body that can cause vomiting. This helps improve your comfort during cancer treatment.
360 services11 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.
351 services173 patients
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.
238 services78 patients
Injection of additional new drug or substance into vein 96375
This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.
131 services22 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94588 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
$202.35 typical visit price
range $69.00 – $202.35
Typical copayment $50.58 (range $17.25 – $50.58)
Most-billed visit code 99205
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.

Internal Medicine (Medical Oncology)
5725 W LAS POSITAS BLVD STE 100A
PLEASANTON, CA 94588
Physician Assistant
5725 W LAS POSITAS BLVD STE 100A
PLEASANTON, CA 94588
Physician Assistant
5725 W LAS POSITAS BLVD STE 100A
PLEASANTON, CA 94588

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 Thomas Yang Sun's NPI number?

The NPI number for Thomas Yang Sun is 1215468160. It was assigned to this individual provider in the NPPES registry on March 22, 2017.

Where is Thomas Yang Sun located?

Thomas Yang Sun practices at 5725 W Las Positas Blvd Ste 100A, Pleasanton, CA 94588. The listed phone number is (925) 734-8130.

What is Thomas Yang Sun's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Thomas Yang Sun enrolled in Medicare?

Yes. Thomas Yang Sun 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 Thomas Yang Sun was last updated on April 29, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.