Dr. Yasuhiro Oki, MD

  • Pleasanton, CA
  • Hematologist and oncologist
NPI1265742274
Medicare services, 2023
65
Medicare patients, 2024
14
Part D claims, 2017
195
Publications
167
Clinical trials
10
Practice address
5555 West Las Positas Boulevard, Pleasanton, CA 94588
Practice phone
Call (925) 847-3000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Stanford Health Care Tri-Valley

Hospital · Pleasanton, California

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Dr. Yasuhiro Oki is a hematologist and oncologist in Pleasanton, California

Dr. Oki practices at Stanford Health Care Tri-Valley in Pleasanton, California, part of Stanford University.

Dr. Oki's NPI, 1265742274, was assigned on October 12, 2010. Dr. Oki graduated from Graduate School of Medicine and Faculty of Medicine, The University of Tokyo in 1998. Dr. Oki holds Texas license N6548.

NPI and contact details
NPI enumeration date
October 12, 2010
NPI status
Active
Practice phone
(925) 847-3000
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
54
Medical school graduation
1998

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Yasuhiro Oki practices at Stanford Health Care Tri-Valley in Pleasanton, California

Dr. Oki's primary practice is Stanford Health Care Tri-Valley, at 5555 West Las Positas Boulevard, Pleasanton, CA 94588 in Alameda County. The practice phone is (925) 847-3000.

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Yasuhiro Oki is affiliated with 1 site of care and 1 medical group

Dr. Oki's primary practice is Stanford Health Care Tri-Valley in Pleasanton, California, part of Stanford University. The medical group on file is Stanford Medicine Partners.

Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Yasuhiro Oki's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Oki practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Stanford Health Care Tri-ValleyAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Yasuhiro Oki is one of 1,502 hematologists and oncologists in California

Hematology and oncology is Dr. Oki's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Oki is board certified in hematology by the American Board of Internal Medicine. Dmand AI has Dr. Oki's licenses on file in 2 states: Texas and California.

Specialties and state licenses

  • Hematology and oncology, TexasPrimaryLicense N6548 · 2010 to 2026 · taxonomy 207RH0003X
  • California license2017 to 2025

Hematologists and oncologists near Dr. Oki

Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Yasuhiro Oki billed Medicare for 65 services in 2023

CMS data shows 65 Medicare services from Dr. Oki across 2 procedure codes in 2023, for 14 Medicare patients. Medicare paid $7,387 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202365
Medicare patients14
Paid by Medicare$7,387
Procedure codes2

Dr. Oki's Medicare services by type, 2022 to 2023

  • 2022
  • 2023
Office and hospital visits
2022: 282023: 65132%

Dr. Oki compared with the California median for hematologists and oncologists, 2023

  • Dr. Oki
  • California median
Medicare services
65vs 93293% below
Medicare patients
14vs 22594% below
Part D claims
195vs 39451% below

Medians across 1,367 hematologists and oncologists in California with Dmand AI profiles that report each measure.

Dr. Oki's most billed Medicare procedure codes, 2023

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Yasuhiro Oki treated 14 Medicare patients in 2024, average age 74

CMS counts 14 Medicare patients who saw Dr. Oki in 2024. The largest group is under 65, with 0 patients. 75% of them have cancer, and 75% have high blood pressure. Their average risk score is 3.64, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Oki's median patient age at 65, with 0% women.

Medicare patients, 202414
Average age74
Average risk score3.64

Dr. Oki's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Dr. Oki's Medicare patients, 2024

  1. Cancer75%
  2. High blood pressure75%
  3. High cholesterol75%

Share of Medicare patients with each condition. A patient can have several.

Dr. Oki's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 65

Patient panel by sex, all payers

  • Women0%
  • Men100%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Yasuhiro Oki wrote 195 Medicare Part D claims in 2017

In 2017, Dr. Oki wrote 195 Medicare Part D claims. They cover 10 drugs, with $9,027 in total drug cost. In 2016, CMS named 89 claims across 4 drugs.

Part D claims, 2017195
Drugs named by CMS10
Total drug cost$9,027

Dr. Oki's most prescribed drugs by claims, 2017

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2016 to 2017

  • 2016
  • 2017
Claims for drugs CMS names
2016: 892017: 195119%

Drugs named by CMS: 10 in 2017, 4 in 2016.

See all prescribing by Dr. Oki

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

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Dr. Yasuhiro Oki has 167 publications on record

Dmand AI links 167 papers to Dr. Oki, published from 2003 to 2022. 2018 was the busiest year, with 21. The most frequent topics are Antineoplastic Combined Chemotherapy Protocols, Doxorubicin and Hodgkin Disease. Dr. Oki has published most often in Leuk Lymphoma. Dr. Oki's most frequent co-authors are Luis E. Fayad, MD, Michelle A. Fanale, MD and Jason R. Westin, MD.

Papers167
Years published2003 to 2022

Dr. Oki's papers by year, 2013 to 2022

Topics Dr. Oki writes about most

  • Antineoplastic Combined Chemotherapy Protocols
  • Doxorubicin
  • Hodgkin Disease
  • Rituximab
  • Lymphoma, Large B-Cell, Diffuse
  • Cyclophosphamide
  • Vincristine
  • Prednisone

Dr. Oki's most frequent co-authors

Recent publications by Dr. Oki

See all 167 publications and co-authors

See who Dr. Oki researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Oki works with, so you can find a warm path to the right hematologists and oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Yasuhiro Oki has worked on 10 clinical trials

Dmand AI links Dr. Oki to 10 clinical trials, 5 of them phase 2 studies. 1 is still active or recruiting. Conditions studied include Lymphoma, Lymphoma, Large B-Cell, Diffuse and Hodgkin Disease. M.D. Anderson Cancer Center sponsors the most, 6.

Clinical trials with Dr. Oki by phase

  1. 1Phase 1: 1 trial
  2. 4Phase 1/2: 4 trials
  3. 5Phase 2: 5 trials
  4. NonePhase 3: no trials
  5. NonePhase 4: no trials

Conditions in Dr. Oki's trials

  • Lymphoma
  • Lymphoma, Large B-Cell, Diffuse
  • Hodgkin Disease
  • Lymphoma, T-Cell
  • Lymphatic Diseases

Investigators on the most trials with Dr. Oki

Recent clinical trials with Dr. Oki

See all 10 clinical trials and co-investigators

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Yasuhiro Oki received $5,083 in industry payments from 2016 to 2019

CMS Open Payments shows 9 general payments to Dr. Oki from 4 drug and device companies from 2016 to 2019. Speaker and faculty fees make up the largest share, 69% of the total. Spectrum Pharmaceuticals Inc. paid the most, $4,540. It also lists 1 research payment totaling $1,050 in 2017.

General payments to Dr. Oki by program year, 2016 to 2019

General payments to Dr. Oki by kind, 2016 to 2019

$5.1Kin total
  • Speaker and faculty fees$3,50069%
  • Honoraria$80016%
  • Food and beverage$56811%
  • Travel and lodging$2154%

Companies that paid Dr. Oki the most, 2016 to 2019

Share is of all general payments to this clinician.

See all payments to Dr. Oki

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Yasuhiro Oki graduated from Graduate School of Medicine and Faculty of Medicine, The University of Tokyo

Dr. Oki graduated from Graduate School of Medicine and Faculty of Medicine, The University of Tokyo in 1998.

  1. Medical schoolGraduate School of Medicine and Faculty of Medicine, The University of Tokyo
  2. Board certified in hematologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine
  4. Board certified in medical oncologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Yasuhiro Oki accepts plans from 3 insurance carriers

Dr. Oki is in network with 3 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Cigna. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.

  • Elevance
  • Blue Cross Blue Shield of Michigan
  • Cigna

Plan types Dr. Oki accepts, by number of carriers

  1. PPO3
  2. HMO2
  3. POS2
  4. EPO1
  5. Medicare1

Source: Dmand AI Insurance Network Data

Sources for Dr. Yasuhiro Oki's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Yasuhiro Oki

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Yasuhiro Oki's NPI number?

Dr. Yasuhiro Oki's NPI number is 1265742274. It was assigned on October 12, 2010, and it is active in the NPI Registry.

What kind of doctor is Dr. Yasuhiro Oki?

Dr. Yasuhiro Oki is a hematologist and oncologist in Pleasanton, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).

Where does Dr. Yasuhiro Oki practice?

Dr. Oki practices at 5555 West Las Positas Boulevard, Pleasanton, CA 94588. Dr. Oki's primary practice is Stanford Health Care Tri-Valley in Pleasanton, California, part of Stanford University.

What is Dr. Yasuhiro Oki's office phone number?

The practice phone on file for Dr. Oki is (925) 847-3000.

What is Dr. Yasuhiro Oki's medical license number?

Dr. Oki holds Texas license N6548, one of the licenses on file in 2 states.

Which states has Dr. Yasuhiro Oki been licensed in?

Dmand AI has state licenses on file for Dr. Oki in Texas (2010 to 2026) and California (2017 to 2025).

Which hospitals is Dr. Yasuhiro Oki affiliated with?

Dr. Oki practices at Stanford Health Care Tri-Valley in Pleasanton, California.

What medical group is Dr. Yasuhiro Oki part of?

Dr. Oki is linked to Stanford Medicine Partners.

Does Dr. Yasuhiro Oki accept Medicare?

Yes. CMS data shows Dr. Oki billed Medicare for 65 services in 2023.

How many Medicare patients does Dr. Yasuhiro Oki see?

CMS counts 14 Medicare patients who saw Dr. Oki in 2024, with an average age of 74.

Show 9 more questionsShow fewer questions

Is Dr. Yasuhiro Oki board certified?

Yes. Dr. Oki is board certified in hematology by the American Board of Internal Medicine.

What services does Dr. Yasuhiro Oki bill to Medicare?

In 2023, Dr. Oki's most billed Medicare services were hospital inpatient care (99233) and hospital inpatient care (99223).

Where did Dr. Yasuhiro Oki go to medical school?

Dr. Oki graduated from Graduate School of Medicine and Faculty of Medicine, The University of Tokyo in 1998.

What drugs does Dr. Yasuhiro Oki prescribe most?

In 2017 Medicare Part D data, Dr. Oki's most prescribed drugs by claims were Prednisone, Valacyclovir and Pantoprazole Sodium.

Has Dr. Yasuhiro Oki received payments from drug or device companies?

CMS Open Payments shows $5,083 in general payments to Dr. Oki from 4 companies from 2016 to 2019. The largest total came from Spectrum Pharmaceuticals Inc.

How long has Dr. Yasuhiro Oki been practicing?

Dr. Oki graduated from medical school in 1998, 28 years ago.

Does Dr. Yasuhiro Oki do research?

Dmand AI links 167 publications to Dr. Oki, published from 2003 to 2022. Dr. Oki has worked on 10 clinical trials.

Who does Dr. Yasuhiro Oki publish with?

Dr. Oki's most frequent co-authors are Luis E. Fayad, MD (46 shared papers), Michelle A. Fanale, MD (39 shared papers) and Jason R. Westin, MD (34 shared papers).

What insurance does Dr. Yasuhiro Oki accept?

Dr. Oki is in network with 3 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Cigna. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.

Selling to hematology and oncology practices?

See hematologists and oncologists in California by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

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