Dr. Ian Leong Liao, MD
- Medicare services, 2024
- 502
- Medicare patients, 2024
- 147
- Part D claims, 2024
- 450
- Hospital affiliations
- 2
- Industry payments
- $130
- Practice address
- 4805 NE Glisan Street, Portland, OR 97213
- Practice phone
- Call (503) 215-1111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Liao's professional email, personal email and mobile number
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Dr. Ian Leong Liao is an internist in Portland, Oregon
Dr. Liao practices at Providence Portland Medical Center in Portland, Oregon, part of Providence Health & Services.
Dr. Liao's NPI, 1154586105, was assigned on July 18, 2008. Dr. Liao holds Oregon license MD168027.
- NPI
- 1154586105NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476728411
- NPI enumeration date
- July 18, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 215-1111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ian Leong Liao practices at Providence Portland Medical Center in Portland, Oregon
Dr. Liao's primary practice is Providence Portland Medical Center, at 4805 NE Glisan Street, Portland, OR 97213 in Multnomah County. The practice phone is (503) 215-1111.
- Providence Portland Medical Center4805 NE Glisan Street, Portland, OR 97213 · Multnomah CountyPhone(503) 215-1111
Source: Dmand AI Affiliation Data
Dr. Ian Leong Liao is affiliated with 2 sites of care and 6 medical groups
Dr. Liao's primary practice is Providence Portland Medical Center in Portland, Oregon, part of Providence Health & Services. Dr. Liao is also affiliated with Providence St. Vincent Medical Center. The medical group on file is Providence Medical Group, Oregon. Dmand AI also links Dr. Liao to 5 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ian Leong Liao's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Liao practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Providence Portland Medical Center | Available with a free account |
| +1 more site and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ian Leong Liao is one of 1,680 internists in Oregon
Internal medicine is Dr. Liao's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Liao's licenses on file in 3 states: Oregon, Colorado and Georgia.
Specialties and state licenses
- Internal medicine, OregonPrimary
- Colorado license
- Georgia license
Internists near Dr. Liao
Counts of internists 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 Leong Liao billed Medicare for 502 services in 2024
CMS data shows 502 Medicare services from Dr. Liao across 5 procedure codes in 2024, for 147 Medicare patients. Medicare paid $32,363 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Liao's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6302024: 50220%
Dr. Liao compared with the Oregon median for internists, 2024
- Dr. Liao
- Oregon median
- Medicare services
- 502vs 30067% above
- Medicare patients
- 147vs 13211% above
- Part D claims
- 196vs 22212% below
Medians across 1,791 internists in Oregon with Dmand AI profiles that report each measure.
Dr. Liao'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ian Leong Liao treated 147 Medicare patients in 2024, average age 75
CMS counts 147 Medicare patients who saw Dr. Liao in 2024. The largest group is 65 to 74, with 57 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 29% are also on Medicaid. Their average risk score is 2.15, 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. Liao's median patient age at 74, with 49% women.
Dr. Liao's Medicare patients by age, 2024
Dr. Liao's Medicare patients by sex, 2024
- Women6343%
- Men8457%
Chronic conditions among Dr. Liao's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Arthritis61%
- Chronic kidney disease48%
- Diabetes48%
- Heart failure48%
- Ischemic heart disease44%
- Mood disorders40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Liao's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ian Leong Liao wrote 450 Medicare Part D claims in 2024
In 2024, Dr. Liao wrote 450 Medicare Part D claims for 167 patients. 86% of them were for generic drugs. CMS names the drug for 196 of them, across 10 drugs with 11 or more claims each, at $17,340 in total drug cost. In 2023, CMS named 216 claims across 12 drugs.
Dr. Liao's Part D claims by kind of drug, 2024
- Generic387 claims86%
- Brand-name63 claims14%
Dr. Liao'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. Liao's Part D claims, 2024
- Opioids5%24 of 450 claims
- Antibiotics19%87 of 450 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: 2162024: 1969%
Drugs named by CMS: 10 in 2024, 12 in 2023.
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
How Dr. Ian Leong Liao takes part in Medicare
Dr. Liao accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ian Leong Liao received $130 in industry payments from 2018 to 2021
CMS Open Payments shows 2 general payments to Dr. Liao from 2 drug and device companies from 2018 to 2021. Food and beverage make up the largest share, 100% of the total. AngioDynamics, Inc. paid the most, $118.
General payments to Dr. Liao by program year, 2018 to 2021
Companies that paid Dr. Liao the most, 2018 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ian Leong Liao's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ian Leong Liao
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 Leong Liao's NPI number?
Dr. Ian Leong Liao's NPI number is 1154586105. It was assigned on July 18, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Ian Leong Liao?
Dr. Ian Leong Liao is an internist in Portland, Oregon. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Ian Leong Liao practice?
Dr. Liao practices at 4805 NE Glisan Street, Portland, OR 97213. Dr. Liao's primary practice is Providence Portland Medical Center in Portland, Oregon, part of Providence Health & Services. Dmand AI also links Dr. Liao to 5 medical groups.
What is Dr. Ian Leong Liao's office phone number?
The practice phone on file for Dr. Liao is (503) 215-1111.
What is Dr. Ian Leong Liao's medical license number?
Dr. Liao holds Oregon license MD168027, one of the licenses on file in 3 states.
Which states has Dr. Ian Leong Liao been licensed in?
Dmand AI has state licenses on file for Dr. Liao in Oregon, Colorado and Georgia.
Which hospitals is Dr. Ian Leong Liao affiliated with?
Dr. Liao practices at Providence Portland Medical Center in Portland, Oregon. Dr. Liao is also affiliated with Providence St. Vincent Medical Center.
What medical group is Dr. Ian Leong Liao part of?
Dr. Liao is linked to Providence Medical Group, Oregon. Dmand AI links Dr. Liao to 5 more medical groups.
Does Dr. Ian Leong Liao accept Medicare?
Yes. CMS data shows Dr. Liao billed Medicare for 502 services in 2024, and Dr. Liao accepts Medicare assignment.
How many Medicare patients does Dr. Ian Leong Liao see?
CMS counts 147 Medicare patients who saw Dr. Liao in 2024, with an average age of 75.
Show 4 more questionsShow fewer questions
What services does Dr. Ian Leong Liao bill to Medicare?
In 2024, Dr. Liao's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99239) and hospital inpatient care (99231).
What drugs does Dr. Ian Leong Liao prescribe most?
In 2024 Medicare Part D data, Dr. Liao's most prescribed drugs by claims were Cefuroxime, Metoprolol Tartrate and Torsemide.
Has Dr. Ian Leong Liao received payments from drug or device companies?
CMS Open Payments shows $130 in general payments to Dr. Liao from 2 companies from 2018 to 2021. The largest total came from AngioDynamics, Inc.
How long has Dr. Ian Leong Liao been practicing?
Dr. Liao graduated from medical school in 2007, 19 years ago.
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