Dr. Douglas W. Blayney, MD

  • Stanford, CA
  • Medical oncologist
NPI1811073877
Medicare services, 2022
134
Part D claims, 2023
11
Publications
140
Clinical trials
2
Hospital affiliations
2
Practice address
300 Pasteur Drive, Stanford, CA 94305
Practice phone
Call (650) 723-4000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Stanford Hospital at 300 Pasteur Drive

Hospital · Stanford, California

See all 2 affiliations

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Dr. Douglas W. Blayney is a medical oncologist in Stanford, California

Dr. Blayney practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.

Dr. Blayney's NPI, 1811073877, was assigned on October 31, 2006. Dr. Blayney graduated from University of California, San Diego School of Medicine in 1977. Dr. Blayney holds California license G37829.

NPI and contact details
NPI enumeration date
October 31, 2006
NPI status
Active
Practice phone
(650) 723-4000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
75
Medical school graduation
1977

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

Dr. Douglas W. Blayney practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California

Dr. Blayney's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.

Source: Dmand AI Affiliation Data

Dr. Douglas W. Blayney is affiliated with 2 sites of care

Dr. Blayney's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Blayney to 1 hospital, named with a free account.

See all 2 affiliations for Dr. Blayney

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Douglas W. Blayney's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Blayney practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Stanford Hospital at 300 Pasteur DriveAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Douglas W. Blayney is one of 415 medical oncologists in California

Medical oncology is Dr. Blayney's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Blayney is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Blayney's licenses on file in 2 states: California and Michigan.

Specialties and state licenses

  • Medical oncology, CaliforniaPrimaryLicense G37829 · 1978 to 2026 · taxonomy 207RX0202X
  • Internal medicine, MichiganLicense 4301081308 · 2003 to 2028 · taxonomy 207R00000X

Medical oncologists near Dr. Blayney

Counts of medical 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. Douglas W. Blayney billed Medicare for 134 services in 2022

CMS data shows 134 Medicare services from Dr. Blayney across 2 procedure codes in 2022, all of them office visits. Medicare paid $6,849 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2022134
Paid by Medicare$6,849
Procedure codes2

Dr. Blayney's Medicare services by type, 2021 to 2022

  • 2021
  • 2022
Office and hospital visits
2021: 2392022: 13444%

Dr. Blayney compared with the California median for medical oncologists, 2022

  • Dr. Blayney
  • California median
Medicare services
134vs 49673% below
Part D claims
11vs 14492% below

Medians across 358 medical oncologists in California with Dmand AI profiles that report each measure.

Dr. Blayney's most billed Medicare procedure codes, 2022

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

See all procedures by Dr. Blayney

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

Dr. Douglas W. Blayney's patients have a median age of 72

Across all payers, Dmand AI patient panel data puts Dr. Blayney's median patient age at 72, with 100% women.

Dr. Blayney's patients across all payers

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

Patient panel by age, all payers

Median age 72

Patient panel by sex, all payers

  • Women100%
  • Men0%

Source: Dmand AI Patient Panel Data

Dr. Douglas W. Blayney wrote 11 Medicare Part D claims in 2023

In 2023, Dr. Blayney wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $568 in total drug cost. In 2022, CMS named 149 claims across 3 drugs.

Part D claims, 202311
Drugs named by CMS1
Total drug cost$568

Dr. Blayney's most prescribed drugs by claims, 2023

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, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 1492023: 1193%

Drugs named by CMS: 1 in 2023, 3 in 2022.

See all prescribing by Dr. Blayney

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

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Dr. Douglas W. Blayney has 140 publications on record

Dmand AI links 140 papers to Dr. Blayney, published from 2007 to 2025. 2020 was the busiest year, with 6. The most frequent topics are Breast Neoplasms, Medical Oncology and Antibodies, Viral. Dr. Blayney has published most often in J Oncol Pract. Dr. Blayney's most frequent co-authors are James D. Brooks, MD, Richard L. Theriault, DO and Lucille Leong, MD.

Papers140
Years published2007 to 2025

Dr. Blayney's papers by year, 2016 to 2025

Topics Dr. Blayney writes about most

  • Breast Neoplasms
  • Medical Oncology
  • Antibodies, Viral
  • Lymphoma
  • T-Lymphocytes
  • Antineoplastic Combined Chemotherapy Protocols
  • Electronic Health Records
  • Antineoplastic Agents

Dr. Blayney's most frequent co-authors

Recent publications by Dr. Blayney

See all 140 publications and co-authors

See who Dr. Blayney researches with

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

How network discovery works

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

Dr. Douglas W. Blayney has worked on 2 clinical trials

Dmand AI links Dr. Blayney to 2 clinical trials, 2 of them phase 3 studies. 1 is still active or recruiting. BeyondSpring Pharmaceuticals Inc. sponsors the most, 2.

Investigators on the most trials with Dr. Blayney

Recent clinical trials with Dr. Blayney

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

Dr. Douglas W. Blayney received $64,865 in industry payments from 2016 to 2021

CMS Open Payments shows 97 general payments to Dr. Blayney from 13 drug and device companies from 2016 to 2021. Consulting fees make up the largest share, 84% of the total. Daiichi Sankyo Inc. paid the most, $18,546.

General payments to Dr. Blayney by program year, 2016 to 2021

General payments to Dr. Blayney by kind, 2016 to 2021

$64.9Kin total
  • Consulting fees$54,59284%
  • Travel and lodging$6,69810%
  • Education speaker fees$1,7373%
  • Food and beverage$1,3382%
  • Grants$5001%

Companies that paid Dr. Blayney the most, 2016 to 2021

Share is of all general payments to this clinician.

See all payments to Dr. Blayney

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

Dr. Douglas W. Blayney has 3 awards and honors on record

Dmand AI lists 3 awards for Dr. Blayney, most recently Regional Top Doctor in 2014.

Awards and honors for Dr. Blayney

  1. 2014
    • Regional Top Doctor
  2. 2013
    • CMS Stage 1 EHR
  3. 2007
    • ASCO Fellow

Source: Dmand AI Professional Profile Data

Dr. Douglas W. Blayney graduated from University of California, San Diego School of Medicine

Dr. Blayney graduated from University of California, San Diego School of Medicine in 1977. Dr. Blayney is a member of ASCO.

  1. Medical schoolUniversity of California, San Diego School of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in medical oncologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Douglas W. Blayney accepts plans from 5 insurance carriers

Dr. Blayney is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • NV State Medicaid

Plan types Dr. Blayney accepts, by number of carriers

  1. Medicare4
  2. PPO4
  3. HMO1
  4. Medicaid1
  5. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Douglas W. Blayney'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 Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand 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 Data
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)
Awards and committee rolesDmand AI Professional Profile Data
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. Douglas W. Blayney

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. Douglas W. Blayney's NPI number?

Dr. Douglas W. Blayney's NPI number is 1811073877. It was assigned on October 31, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Douglas W. Blayney?

Dr. Douglas W. Blayney is a medical oncologist in Stanford, California. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).

Where does Dr. Douglas W. Blayney practice?

Dr. Blayney practices at 300 Pasteur Drive, Stanford, CA 94305. Dr. Blayney's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. Dmand AI also links Dr. Blayney to 1 hospital.

What is Dr. Douglas W. Blayney's office phone number?

The practice phone on file for Dr. Blayney is (650) 723-4000.

What is Dr. Douglas W. Blayney's medical license number?

Dr. Blayney holds California license G37829, one of the licenses on file in 2 states.

Which states has Dr. Douglas W. Blayney been licensed in?

Dmand AI has state licenses on file for Dr. Blayney in California (1978 to 2026) and Michigan (2003 to 2028).

Which hospitals is Dr. Douglas W. Blayney affiliated with?

Dr. Blayney practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California. Dmand AI links Dr. Blayney to 1 more hospital.

Does Dr. Douglas W. Blayney accept Medicare?

Yes. CMS data shows Dr. Blayney billed Medicare for 134 services in 2022.

Is Dr. Douglas W. Blayney board certified?

Yes. Dr. Blayney is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Douglas W. Blayney bill to Medicare?

In 2022, Dr. Blayney's most billed Medicare services were office visit, established patient (99213) and office visit, established patient (99214).

Show 7 more questionsShow fewer questions

Where did Dr. Douglas W. Blayney go to medical school?

Dr. Blayney graduated from University of California, San Diego School of Medicine in 1977.

What drugs does Dr. Douglas W. Blayney prescribe most?

In 2023 Medicare Part D data, Dr. Blayney's most prescribed drugs by claims were Anastrozole.

Has Dr. Douglas W. Blayney received payments from drug or device companies?

CMS Open Payments shows $64,865 in general payments to Dr. Blayney from 13 companies from 2016 to 2021. The largest total came from Daiichi Sankyo Inc.

How long has Dr. Douglas W. Blayney been practicing?

Dr. Blayney graduated from medical school in 1977, 49 years ago.

Does Dr. Douglas W. Blayney do research?

Dmand AI links 140 publications to Dr. Blayney, published from 2007 to 2025. Dr. Blayney has worked on 2 clinical trials.

Who does Dr. Douglas W. Blayney publish with?

Dr. Blayney's most frequent co-authors are James D. Brooks, MD (16 shared papers), Richard L. Theriault, DO (10 shared papers) and Lucille Leong, MD (8 shared papers).

What insurance does Dr. Douglas W. Blayney accept?

Dr. Blayney is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.

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