Dr. Smith Apisarnthanarax, MD

  • Seattle, WA
  • Radiation oncologist
NPI1184839722PAC ID4880748250
Medicare services, 2024
1,001
Medicare patients, 2024
261
Part D claims, 2024
27
Publications
79
Clinical trials
2
Practice address
825 Eastlake Avenue East, Seattle, WA 98109
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Fred Hutchinson Cancer Center

Hospital · Seattle, Washington

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Dr. Smith Apisarnthanarax is a radiation oncologist in Seattle, Washington

Dr. Apisarnthanarax practices at Fred Hutchinson Cancer Center in Seattle, Washington, part of Fred Hutchinson Cancer Center.

Dr. Apisarnthanarax's NPI, 1184839722, was assigned on May 14, 2007. Dr. Apisarnthanarax graduated from The Warren Alpert Medical School of Brown University in 2002. Dr. Apisarnthanarax's Washington license number on file is MD60335889.

NPI and contact details
Medicare PAC ID
4880748250
NPI enumeration date
May 14, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
50
Medical school graduation
2002

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

Dr. Smith Apisarnthanarax practices at Fred Hutchinson Cancer Center in Seattle, Washington

Dr. Apisarnthanarax's primary practice is Fred Hutchinson Cancer Center, at 825 Eastlake Avenue East, Seattle, WA 98109.

Source: Dmand AI Affiliation Data

Dr. Smith Apisarnthanarax is affiliated with 3 sites of care and 1 medical group

Dr. Apisarnthanarax's primary practice is Fred Hutchinson Cancer Center in Seattle, Washington, part of Fred Hutchinson Cancer Center. Dr. Apisarnthanarax is also affiliated with UW Medical Center - Montlake. The medical group on file is UW Physicians. Dmand AI also links Dr. Apisarnthanarax to 1 more group practice or clinic, named with a free account.

See all 4 affiliations for Dr. Apisarnthanarax

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

Dmand AI tracks the EHR system at Dr. Smith Apisarnthanarax's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Apisarnthanarax practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Fred Hutchinson Cancer CenterAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Smith Apisarnthanarax is one of 162 radiation oncologists in Washington

Radiation oncology is Dr. Apisarnthanarax's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Apisarnthanarax is board certified in radiation oncology by the American Board of Radiology. Dmand AI has Dr. Apisarnthanarax's licenses on file in 5 states: Washington, New Jersey, North Carolina, Pennsylvania and Illinois.

Specialties and state licenses

  • Radiation oncology, WashingtonPrimaryLicense MD60335889 · 2013 to 2025 · taxonomy 2085R0001X
  • New Jersey license2009 to 2015
  • North Carolina license2005 to 2014
  • Pennsylvania license2009 to 2014
  • Illinois license2002 to 2003

Clinical focus

Dmand AI lists anal cancer radiation, cancer radiation-upper GI, colorectal cancer radiation, head & neck cancer radiation, lung cancer radiation and pancreatic cancer radiation among the conditions Dr. Apisarnthanarax treats.

Radiation oncologists near Dr. Apisarnthanarax

Counts of radiation 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. Smith Apisarnthanarax billed Medicare for 1,001 services in 2024

CMS data shows 1,001 Medicare services from Dr. Apisarnthanarax across 18 procedure codes in 2024, for 261 Medicare patients. Medicare paid $85,231 for them. Every service was in an office.

Medicare services, 20241,001
Medicare patients261
Paid by Medicare$85,231
Procedure codes18

Dr. Apisarnthanarax's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Imaging
2023: 5482024: 6009%
Other services
2023: 3382024: 30410%
Office and hospital visits
2023: 812024: 9720%

Dr. Apisarnthanarax compared with the Washington median for radiation oncologists, 2024

  • Dr. Apisarnthanarax
  • Washington median
Medicare services
1,001vs 1,18716% below
Medicare patients
261vs 18640% above
Part D claims
11vs 4475% below

Medians across 156 radiation oncologists in Washington with Dmand AI profiles that report each measure.

Dr. Apisarnthanarax's most billed Medicare procedure codes, 2024

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. Apisarnthanarax

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

Dr. Smith Apisarnthanarax treated 261 Medicare patients in 2024, average age 73

CMS counts 261 Medicare patients who saw Dr. Apisarnthanarax in 2024. The largest group is 65 to 74, with 150 patients. 67% of them have high cholesterol, and 64% have high blood pressure. 7% are also on Medicaid. Their average risk score is 1.67, 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. Apisarnthanarax's median patient age at 65, with 46% women.

Medicare patients, 2024261
Average age73
Average risk score1.67
Also on Medicaid7%

Dr. Apisarnthanarax's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Apisarnthanarax's Medicare patients by sex, 2024

  • Women7930%
  • Men18270%

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

  1. High cholesterol67%
  2. High blood pressure64%
  3. Cancer63%
  4. Arthritis36%
  5. Ischemic heart disease22%
  6. Mood disorders21%
  7. Anxiety20%
  8. Chronic kidney disease20%

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

Dr. Apisarnthanarax'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

  • Women46%
  • Men53%

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

Dr. Smith Apisarnthanarax wrote 27 Medicare Part D claims in 2024

In 2024, Dr. Apisarnthanarax wrote 27 Medicare Part D claims for 19 patients. 96% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $86 in total drug cost. In 2023, CMS named 11 claims across 1 drug.

Part D claims, 202427
Drugs named by CMS1
Total drug cost$86
Part D patients19

Dr. Apisarnthanarax's Part D claims by kind of drug, 2024

  • Generic26 claims96%
  • Brand-name and other1 claims4%

Dr. Apisarnthanarax's most prescribed drugs by claims, 2024

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, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 112024: 11No change

Drugs named by CMS: 1 in 2024, 1 in 2023.

See all prescribing by Dr. Apisarnthanarax

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

Dr. Smith Apisarnthanarax scored 94 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Apisarnthanarax for performance year 2024, reported through an alternative payment model (APM). Dr. Apisarnthanarax accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Apisarnthanarax as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Apisarnthanarax's MIPS scores, performance year 2024

  • 94of 100Final score
  • 74.6of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Smith Apisarnthanarax has 79 publications on record

Dmand AI links 79 papers to Dr. Apisarnthanarax, published from 2005 to 2025. 2018 was the busiest year, with 11. The most frequent topics are Liver Neoplasms, Proton Therapy and Carcinoma, Hepatocellular. Dr. Apisarnthanarax has published most often in Int J Radiat Oncol Biol Phys. Dr. Apisarnthanarax's most frequent co-authors are Stephanie Kelly Schaub, MD, Ramesh Rengan, MD, PhD and Christopher Leigh Hallemeier, MD.

Papers79
Years published2005 to 2025

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

Topics Dr. Apisarnthanarax writes about most

  • Liver Neoplasms
  • Proton Therapy
  • Carcinoma, Hepatocellular
  • Radiotherapy Dosage
  • Chemoradiotherapy
  • Radiotherapy Planning, Computer-Assisted
  • Gastrointestinal Neoplasms
  • Pancreatic Neoplasms

Dr. Apisarnthanarax's most frequent co-authors

Recent publications by Dr. Apisarnthanarax

See all 79 publications and co-authors

See who Dr. Apisarnthanarax researches with

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

How network discovery works

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

Dr. Smith Apisarnthanarax has worked on 2 clinical trials

Dmand AI links Dr. Apisarnthanarax to 2 clinical trials. 1 is still active or recruiting. Conditions studied include Cholangiocarcinoma and Thrombosis.

Conditions in Dr. Apisarnthanarax's trials

  • Cholangiocarcinoma
  • Thrombosis

Investigators on the most trials with Dr. Apisarnthanarax

Recent clinical trials with Dr. Apisarnthanarax

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

Dr. Smith Apisarnthanarax received $13,402 in industry payments from 2016 to 2025

CMS Open Payments shows 31 general payments to Dr. Apisarnthanarax from 7 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 65% of the total. Covidien LP paid the most, $11,346.

General payments to Dr. Apisarnthanarax by program year, 2016 to 2025

General payments to Dr. Apisarnthanarax by kind, 2016 to 2025

$13.4Kin total
  • Speaker and faculty fees$8,76065%
  • Travel and lodging$2,97922%
  • Food and beverage$1,66312%

Companies that paid Dr. Apisarnthanarax the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Apisarnthanarax

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

Dr. Smith Apisarnthanarax has 1 award and honors on record

Dmand AI lists 1 award for Dr. Apisarnthanarax, most recently CMS Stage 1 EHR in 2012.

Awards and honors for Dr. Apisarnthanarax

  1. 2012
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Smith Apisarnthanarax graduated from The Warren Alpert Medical School of Brown University

Dr. Apisarnthanarax graduated from The Warren Alpert Medical School of Brown University in 2002.

  1. Medical schoolThe Warren Alpert Medical School of Brown University
  2. Board certified in radiation oncologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Dr. Smith Apisarnthanarax accepts plans from 18 insurance carriers

Dr. Apisarnthanarax is in network with 18 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

Plan types Dr. Apisarnthanarax accepts, by number of carriers

  1. PPO10
  2. HMO9
  3. Medicare8
  4. EPO5
  5. POS3
  6. Medicaid2

Source: Dmand AI Insurance Network Data

Sources for Dr. Smith Apisarnthanarax'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 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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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. Smith Apisarnthanarax

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. Smith Apisarnthanarax's NPI number?

Dr. Smith Apisarnthanarax's NPI number is 1184839722. It was assigned on May 14, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Smith Apisarnthanarax?

Dr. Smith Apisarnthanarax is a radiation oncologist in Seattle, Washington. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).

Where does Dr. Smith Apisarnthanarax practice?

Dr. Apisarnthanarax practices at 825 Eastlake Avenue East, Seattle, WA 98109. Dr. Apisarnthanarax's primary practice is Fred Hutchinson Cancer Center in Seattle, Washington, part of Fred Hutchinson Cancer Center. Dmand AI also links Dr. Apisarnthanarax to 1 group practice or clinic.

What is Dr. Smith Apisarnthanarax's medical license number?

Dr. Apisarnthanarax's Washington license number on file is MD60335889, one of the licenses on file in 5 states.

Which states has Dr. Smith Apisarnthanarax been licensed in?

Dmand AI has state licenses on file for Dr. Apisarnthanarax in Washington (2013 to 2025), New Jersey (2009 to 2015), North Carolina (2005 to 2014), Pennsylvania (2009 to 2014) and Illinois (2002 to 2003).

Which hospitals is Dr. Smith Apisarnthanarax affiliated with?

Dr. Apisarnthanarax practices at Fred Hutchinson Cancer Center in Seattle, Washington. Dr. Apisarnthanarax is also affiliated with UW Medical Center - Montlake.

What medical group is Dr. Smith Apisarnthanarax part of?

Dr. Apisarnthanarax is linked to UW Physicians.

Does Dr. Smith Apisarnthanarax accept Medicare?

Yes. CMS data shows Dr. Apisarnthanarax billed Medicare for 1,001 services in 2024, and Dr. Apisarnthanarax accepts Medicare assignment.

Does Dr. Smith Apisarnthanarax offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Apisarnthanarax as offering telehealth services.

What is Dr. Smith Apisarnthanarax's MIPS score?

Dr. Apisarnthanarax's MIPS final score for performance year 2024 is 94 out of 100, reported through an alternative payment model (APM).

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Smith Apisarnthanarax see?

CMS counts 261 Medicare patients who saw Dr. Apisarnthanarax in 2024, with an average age of 73.

Is Dr. Smith Apisarnthanarax board certified?

Yes. Dr. Apisarnthanarax is board certified in radiation oncology by the American Board of Radiology.

What services does Dr. Smith Apisarnthanarax bill to Medicare?

In 2024, Dr. Apisarnthanarax's most billed Medicare services were medicare service (G6002), radiation oncology (77014) and radiation oncology (77300).

Where did Dr. Smith Apisarnthanarax go to medical school?

Dr. Apisarnthanarax graduated from The Warren Alpert Medical School of Brown University in 2002.

What drugs does Dr. Smith Apisarnthanarax prescribe most?

In 2024 Medicare Part D data, Dr. Apisarnthanarax's most prescribed drugs by claims were Tamsulosin HCl.

Has Dr. Smith Apisarnthanarax received payments from drug or device companies?

CMS Open Payments shows $13,402 in general payments to Dr. Apisarnthanarax from 7 companies from 2016 to 2025. The largest total came from Covidien LP.

How long has Dr. Smith Apisarnthanarax been practicing?

Dr. Apisarnthanarax graduated from medical school in 2002, 24 years ago.

Does Dr. Smith Apisarnthanarax do research?

Dmand AI links 79 publications to Dr. Apisarnthanarax, published from 2005 to 2025. Dr. Apisarnthanarax has worked on 2 clinical trials.

Who does Dr. Smith Apisarnthanarax publish with?

Dr. Apisarnthanarax's most frequent co-authors are Stephanie Kelly Schaub, MD (15 shared papers), Ramesh Rengan, MD, PhD (12 shared papers) and Christopher Leigh Hallemeier, MD (11 shared papers).

What insurance does Dr. Smith Apisarnthanarax accept?

Dr. Apisarnthanarax is in network with 18 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

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