Dr. Ian Denison Schnadig, MD

  • Portland, OR
  • Hematologist and oncologist
NPI1467664839PAC ID5698845006
Medicare services, 2024
76,863
Medicare patients, 2024
442
Part D claims, 2024
1,895
Publications
19
Clinical trials
3
Practice address
12123 Sw 69th Ave, Portland, OR 97223
Practice phone
Call (360) 597-1300
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Compass Oncology

Portland, Oregon

See all 7 affiliations

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Dr. Ian Denison Schnadig is a hematologist and oncologist in Portland, Oregon

Dr. Schnadig practices at Compass Oncology in Portland, Oregon.

Dr. Schnadig's NPI, 1467664839, was assigned on May 5, 2007. Dr. Schnadig graduated from Rush Medical College of Rush University in 2002. Dr. Schnadig holds Oregon license MD150796.

NPI and contact details
Medicare PAC ID
5698845006
NPI enumeration date
May 5, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(360) 597-1300
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
50
Medical school graduation
2002

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

Dr. Ian Denison Schnadig practices at Compass Oncology in Portland, Oregon

Dr. Schnadig's primary practice is Compass Oncology, at 12123 Sw 69th Ave, Portland, OR 97223 in Washington County. The practice phone is (360) 597-1300.

  • Compass Oncology
    12123 Sw 69th Ave, Portland, OR 97223 · Washington CountyPhone(360) 597-1300

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Ian Denison Schnadig is affiliated with 6 sites of care and 1 medical group

Dr. Schnadig's primary practice is Compass Oncology in Portland, Oregon. Dr. Schnadig is also affiliated with Providence St. Vincent Medical Center. The medical group on file is Compass Oncology. Dmand AI also links Dr. Schnadig to 2 more hospitals, 1 group practice or clinic and 1 hospice, each named with a free account.

See all 7 affiliations for Dr. Schnadig

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

Dmand AI tracks the EHR system at Dr. Ian Denison Schnadig's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schnadig practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Compass OncologyAvailable with a free account
+5 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Ian Denison Schnadig is one of 118 hematologists and oncologists in Oregon

Hematology and oncology is Dr. Schnadig's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Schnadig is licensed in Oregon.

Specialties and state licenses

  • Hematology and oncology, OregonPrimaryLicense MD150796 · taxonomy 207RH0003X

Hematologists and oncologists near Dr. Schnadig

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. Ian Denison Schnadig billed Medicare for 76,863 services in 2024

CMS data shows 76,863 Medicare services from Dr. Schnadig across 52 procedure codes in 2024, for 442 Medicare patients. Medicare paid $692,055 for them. Every service was in an office.

Medicare services, 202476,863
Medicare patients442
Paid by Medicare$692,055
Procedure codes52

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

  • 2023
  • 2024
Drugs given in the office
2023: 57,2942024: 57,572No change
Other services
2023: 25,7412024: 15,03642%
Lab and pathology
2023: 1,7302024: 1,95513%
Tests and treatments
2023: 1,0522024: 1,28822%
Surgery
2023: 4692024: 5139%
Office and hospital visits
2023: 4552024: 4325%
Imaging
2023: 592024: 6714%

Dr. Schnadig compared with the Oregon median for hematologists and oncologists, 2024

  • Dr. Schnadig
  • Oregon median
Medicare services
76,863vs 1,33157.7 times
Medicare patients
442vs 26666% above
Part D claims
1,658vs 7262.3 times

Medians across 122 hematologists and oncologists in Oregon with Dmand AI profiles that report each measure.

Dr. Schnadig'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. Schnadig

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

Dr. Ian Denison Schnadig treated 442 Medicare patients in 2024, average age 75

CMS counts 442 Medicare patients who saw Dr. Schnadig in 2024. The largest group is 65 to 74, with 198 patients. 69% of them have high blood pressure, and 64% have high cholesterol. 4% are also on Medicaid. Their average risk score is 2.25, 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. Schnadig's median patient age at 72, with 45% women.

Medicare patients, 2024442
Average age75
Average risk score2.25
Also on Medicaid4%

Dr. Schnadig's Medicare patients by age, 2024

Dr. Schnadig's Medicare patients by sex, 2024

  • Women19644%
  • Men24656%

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

  1. High blood pressure69%
  2. High cholesterol64%
  3. Cancer63%
  4. Arthritis36%
  5. Chronic kidney disease29%
  6. Diabetes25%
  7. Ischemic heart disease24%
  8. Anxiety23%

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

Dr. Schnadig'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

  • Women45%
  • Men55%

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

Dr. Ian Denison Schnadig wrote 1,895 Medicare Part D claims in 2024

In 2024, Dr. Schnadig wrote 1,895 Medicare Part D claims for 228 patients. 84% of them were for generic drugs. CMS names the drug for 1,658 of them, across 31 drugs with 11 or more claims each, at $3,655,466 in total drug cost. In 2023, CMS named 1,294 claims across 29 drugs.

Part D claims, 20241,895
Drugs named by CMS31
Total drug cost$3.7M
Part D patients228

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

  • Generic1,594 claims84%
  • Brand-name301 claims16%

Dr. Schnadig'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.

Drug classes CMS tracks in Dr. Schnadig's Part D claims, 2024

  • Opioids2%41 of 1,895 claims
  • Antibiotics1%19 of 1,895 claims
  • Antipsychotics, patients 65 and over1%15 of 1,895 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,2942024: 1,65828%

Drugs named by CMS: 31 in 2024, 29 in 2023.

See all prescribing by Dr. Schnadig

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. Ian Denison Schnadig offers telehealth to Medicare patients

Dr. Schnadig accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Schnadig as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Ian Denison Schnadig has 19 publications on record

Dmand AI links 19 papers to Dr. Schnadig, published from 2012 to 2020. 2015 was the busiest year, with 5. The most frequent topics are Nausea, Spiro Compounds and Vomiting. Dr. Schnadig has published most often in Clin Genitourin Cancer. Dr. Schnadig's most frequent co-authors are Lee S. Schwartzberg, MD, Rudolph M. Navari, MD and Mark D. Kochenderfer, MD.

Papers19
Years published2012 to 2020

Dr. Schnadig's papers by year, 2012 to 2020

Topics Dr. Schnadig writes about most

  • Nausea
  • Spiro Compounds
  • Vomiting
  • Antineoplastic Combined Chemotherapy Protocols
  • Neurokinin-1 Receptor Antagonists
  • Antiemetics
  • Carcinoma, Renal Cell
  • Double-Blind Method

Dr. Schnadig's most frequent co-authors

Recent publications by Dr. Schnadig

See all 19 publications and co-authors

See who Dr. Schnadig researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Schnadig 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. Ian Denison Schnadig has worked on 3 clinical trials

Dmand AI links Dr. Schnadig to 3 clinical trials. Conditions studied include Carcinoma, Transitional Cell, Neoplasm Metastasis and Neoplastic Processes. Open Payments lists research payments to Dr. Schnadig that name 1 trial.

Clinical trials with Dr. Schnadig by phase

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

Conditions in Dr. Schnadig's trials

  • Carcinoma, Transitional Cell
  • Neoplasm Metastasis
  • Neoplastic Processes
  • Urinary Bladder Neoplasms

Investigators on the most trials with Dr. Schnadig

Recent clinical trials with Dr. Schnadig

Sources: Open Payments (CMS), 2025 data, released July 7, 2026; Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Ian Denison Schnadig received $9,113 in industry payments from 2016 to 2024

CMS Open Payments shows 14 general payments to Dr. Schnadig from 7 drug and device companies from 2016 to 2024. Speaker and faculty fees make up the largest share, 70% of the total. Sanofi and Genzyme US Companies paid the most, $6,400. It also lists 1 research payment totaling $73 in 2019, naming 1 clinical trial.

General payments to Dr. Schnadig by program year, 2016 to 2024

General payments to Dr. Schnadig by kind, 2016 to 2024

$9.1Kin total
  • Speaker and faculty fees$6,40070%
  • Consulting fees$2,25025%
  • Education$4635%

Companies that paid Dr. Schnadig the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Schnadig

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

Dr. Ian Denison Schnadig graduated from Rush Medical College of Rush University

Dr. Schnadig graduated from Rush Medical College of Rush University in 2002.

  1. Medical schoolRush Medical College of Rush University

Source: Dmand AI Professional Profile Data

Sources for Dr. Ian Denison Schnadig'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)
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
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. Ian Denison Schnadig

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. Ian Denison Schnadig's NPI number?

Dr. Ian Denison Schnadig's NPI number is 1467664839. It was assigned on May 5, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Ian Denison Schnadig?

Dr. Ian Denison Schnadig is a hematologist and oncologist in Portland, Oregon. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).

Where does Dr. Ian Denison Schnadig practice?

Dr. Schnadig practices at 12123 Sw 69th Ave, Portland, OR 97223. Dr. Schnadig's primary practice is Compass Oncology in Portland, Oregon. Dmand AI also links Dr. Schnadig to 2 hospitals, 1 group practice or clinic and 1 hospice.

What is Dr. Ian Denison Schnadig's office phone number?

The practice phone on file for Dr. Schnadig is (360) 597-1300.

What is Dr. Ian Denison Schnadig's medical license number?

Dr. Schnadig holds Oregon license MD150796.

Which hospitals is Dr. Ian Denison Schnadig affiliated with?

Dr. Schnadig is affiliated with Providence St. Vincent Medical Center. Dmand AI links Dr. Schnadig to 2 more hospitals.

What medical group is Dr. Ian Denison Schnadig part of?

Dr. Schnadig is linked to Compass Oncology.

Does Dr. Ian Denison Schnadig accept Medicare?

Yes. CMS data shows Dr. Schnadig billed Medicare for 76,863 services in 2024, and Dr. Schnadig accepts Medicare assignment.

Does Dr. Ian Denison Schnadig offer telehealth?

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

How many Medicare patients does Dr. Ian Denison Schnadig see?

CMS counts 442 Medicare patients who saw Dr. Schnadig in 2024, with an average age of 75.

Show 7 more questionsShow fewer questions

What services does Dr. Ian Denison Schnadig bill to Medicare?

In 2024, Dr. Schnadig's most billed Medicare services were injected or infused drug (J0881), medicare temporary code (Q0138) and injected or infused drug (J9271).

Where did Dr. Ian Denison Schnadig go to medical school?

Dr. Schnadig graduated from Rush Medical College of Rush University in 2002.

What drugs does Dr. Ian Denison Schnadig prescribe most?

In 2024 Medicare Part D data, Dr. Schnadig's most prescribed drugs by claims were Abiraterone Acetate, Prednisone and Bicalutamide.

Has Dr. Ian Denison Schnadig received payments from drug or device companies?

CMS Open Payments shows $9,113 in general payments to Dr. Schnadig from 7 companies from 2016 to 2024. The largest total came from Sanofi and Genzyme US Companies.

How long has Dr. Ian Denison Schnadig been practicing?

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

Does Dr. Ian Denison Schnadig do research?

Dmand AI links 19 publications to Dr. Schnadig, published from 2012 to 2020. Dr. Schnadig has worked on 3 clinical trials.

Who does Dr. Ian Denison Schnadig publish with?

Dr. Schnadig's most frequent co-authors are Lee S. Schwartzberg, MD (8 shared papers), Rudolph M. Navari, MD (5 shared papers) and Mark D. Kochenderfer, MD (3 shared papers).

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