KAZUNARI SASAKI M.D.
NPI 1235591595
Surgery in Stanford, CA

Active since March 25, 2016PECOS EnrolledAccepts Medicare Assignment
76.5/100
CMS Quality Rating
300 PASTEUR DR, STANFORD, CA 94305(650) 723-4000 Get Directions Write a Review

NPPES record last updated: January 14, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 26, 2024, Apr 28, 2024, Dec 6, 2021 and 2 more (5 updates tracked since 2016).

About Kazunari Sasaki M.d. NPPES

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

KAZUNARI SASAKI M.D. (NPI 1235591595) is an individual surgery provider in Stanford, California, licensed in California (A198983) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2004).

NPPES Registry Identity

NPI1235591595
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameKAZUNARI SASAKICredential: M.D.
Location Address300 PASTEUR DRStanford, CA 94305-2200
Mailing Address300 Pasteur DrStanford, CA 94305-2200 · (650) 723-4000
Sole ProprietorNo
Medical School CMSOtherGraduated 2004
Enumeration DateMarch 25, 2016
Last NPPES UpdateJanuary 14, 20255 updates tracked since enumeration
NPPES CertifiedJanuary 14, 2025
NPI 1235591595 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Licenses Licensed in CA · A198983 Licensed in OH · 35.134539
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.
300 PASTEUR DR, Stanford, CA 94305

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

Kazunari Sasaki M.d. 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 ID1759631328
PECOS Enrollment IDI20211203002043
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 4

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.

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
105 services25 patients
Transplantation of donor liver 47135
Transplantation of a donor liver is a procedure where a diseased liver is replaced with a healthy one from a donor. This can be a life-saving operation for conditions such as liver failure or liver cancer. The new liver takes over the functions of the old one, helping the body process nutrients, filter blood, and fight infections.
15 services15 patients
Preparation of donor liver for transplantation 47143
The preparation of a donor liver for transplantation involves a series of steps. First, the liver is carefully removed from the donor. It's then preserved in a special solution to maintain its function. Afterward, it's inspected and prepared for transplantation into the recipient.
13 services13 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.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94305 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

76.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality74.31
Promoting Interoperability100
Improvement Activities40
Cost43.95

Referred Medical Equipment & Supplies CMS DME claims 6

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
1 supplier14 claims28 services$6.54 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
1 supplier16 claims16 services$1.12 avg. paid by Medicare
Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
3 suppliers50 claims17,730 services$0.30 avg. paid by Medicare
Mycophenolate mofetil, oral, 250 mg J7517
Treatment-Treatment - Miscellaneous · category RX029N
3 suppliers14 claims3,060 services$0.18 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
4 suppliers41 claims41 services$18.50 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
5 suppliers32 claims36 services$11.94 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.

Internal Medicine (Gastroenterology)
300 PASTEUR DR, ALWAY BUILD M211, MC 5187
STANFORD, CA 94305
Radiology (Vascular & Interventional Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Psychiatry & Neurology (Psychiatry)
300 PASTEUR DR
STANFORD, CA 94305
Radiology (Diagnostic Radiology)
300 PASTEUR DR
STANFORD, CA 94305
Nurse Practitioner
300 PASTEUR DR
STANFORD, CA 94305
Neurological Surgery
300 PASTEUR DR
STANFORD, CA 94305
Pathology (Anatomic Pathology & Clinical Pathology)
300 PASTEUR DR, LANE 235
STANFORD, CA 94305
Internal Medicine (Critical Care Medicine)
300 PASTEUR DR
STANFORD, CA 94305

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 Kazunari Sasaki's NPI number?

The NPI number for Kazunari Sasaki is 1235591595. It was assigned to this individual provider in the NPPES registry on March 25, 2016.

Where is Kazunari Sasaki located?

Kazunari Sasaki practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.

What is Kazunari Sasaki's specialty?

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

Is Kazunari Sasaki enrolled in Medicare?

Yes. Kazunari Sasaki 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 Kazunari Sasaki was last updated on January 14, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.