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Dr. Mark Y. Liao, MD
NPI1508203514PAC ID3173835089
- Medicare services, 2024
- 99
- Medicare patients, 2024
- 101
- Part D claims, 2024
- 18
- Publications
- 12
- Hospital affiliations
- 2
- Practice address
- 1701 N Senate Blvd, Indianapolis, IN 46202
- Practice phone
- Call (317) 962-2000
- 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
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mark Y. Liao is an emergency medicine physician in Indianapolis, Indiana
Dr. Liao practices at IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health.
Dr. Liao's NPI, 1508203514, was assigned on May 30, 2013. Dr. Liao holds Indiana license 01077226A.
NPI and contact details
- NPI
- 1508203514NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173835089
- NPI enumeration date
- May 30, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (317) 962-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Y. Liao practices at IU Health Methodist Hospital in Indianapolis, Indiana
Dr. Liao's primary practice is IU Health Methodist Hospital, at 1701 N Senate Blvd, Indianapolis, IN 46202 in Marion County. The practice phone is (317) 962-2000.
- IU Health Methodist Hospital1701 N Senate Blvd, Indianapolis, IN 46202 · Marion CountyPhone(317) 962-2000
Source: Dmand AI Affiliation Data
Dr. Mark Y. Liao is affiliated with 3 sites of care and 3 medical groups
Dr. Liao's primary practice is IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health. Dr. Liao is also affiliated with Sidney & Lois Eskenazi Hospital. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Liao to 2 more medical groups and 1 behavioral health center, each named with a free account.
Sidney & Lois Eskenazi HospitalIU Health Medical Group2 medical groupsNames with a free account1 behavioral health centerName with a free account
See all 6 affiliations for Dr. LiaoSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Y. Liao's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Liao practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| IU Health Methodist Hospital | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Y. Liao is one of 1,275 emergency medicine physicians in Indiana
Emergency medicine is Dr. Liao's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Liao is licensed in Indiana.
Specialties and state licenses
- Emergency medicine, IndianaPrimary
Emergency medicine physicians near Dr. Liao
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
1,275emergency medicine physicians in Indiana306emergency medicine physicians in Indianapolis119emergency medicine physicians at IU Health Methodist Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark Y. Liao billed Medicare for 99 services in 2024
CMS data shows 99 Medicare services from Dr. Liao across 3 procedure codes in 2024, for 101 Medicare patients. Medicare paid $10,799 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202499
Medicare patients101
Paid by Medicare$10,799
Procedure codes3
Dr. Liao's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1142024: 9913%
Dr. Liao compared with the Indiana median for emergency medicine physicians, 2024
- Dr. Liao
- Indiana median
- Medicare services
- 99vs 30467% below
- Medicare patients
- 101vs 27764% below
- Part D claims
- 11vs 9288% below
Medians across 1,276 emergency medicine physicians in Indiana 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.
Need commercial claims for Dr. Liao?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Liao and other emergency medicine physicians in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Y. Liao treated 101 Medicare patients in 2024, average age 67
CMS counts 101 Medicare patients who saw Dr. Liao in 2024. The largest group is 65 to 74, with 42 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 39% are also on Medicaid. Their average risk score is 2.70, 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 49, with 51% women.
Medicare patients, 2024101
Average age67
Average risk score2.70
Also on Medicaid39%
Dr. Liao's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Liao's Medicare patients by sex, 2024
- Women5251%
- Men4949%
Chronic conditions among Dr. Liao's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Diabetes50%
- Mood disorders50%
- Chronic kidney disease48%
- Depression47%
- Ischemic heart disease45%
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 49
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Y. Liao wrote 18 Medicare Part D claims in 2024
In 2024, Dr. Liao wrote 18 Medicare Part D claims. 78% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $106 in total drug cost. In 2017, CMS named 13 claims across 1 drug.
Part D claims, 202418
Drugs named by CMS1
Total drug cost$106
Dr. Liao's Part D claims by kind of drug, 2024
- Generic14 claims78%
- Brand-name and other4 claims22%
Dr. Liao's most prescribed drugs by claims, 2019
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, 2017 to 2019
- 2017
- 2019
- Claims for drugs CMS names
- 2017: 132019: 1115%
Drugs named by CMS: 1 in 2019, 1 in 2017.
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. Mark Y. 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. Mark Y. Liao has 12 publications on record
Dmand AI links 12 papers to Dr. Liao, published from 2019 to 2024. 2022 was the busiest year, with 5. The most frequent topics are Emergency Medical Services, Emergency Service, Hospital and COVID-19. Dr. Liao has published most often in Am J Emerg Med. Dr. Liao's most frequent co-authors are Michael Supples, MD, Nancy K. Glober, MD and Thomas Adam Lardaro, MD.
Papers12
Years published2019 to 2024
Dr. Liao's papers by year, 2019 to 2024
Topics Dr. Liao writes about most
- Emergency Medical Services
- Emergency Service, Hospital
- COVID-19
- Emergency Medical Technicians
- Out-of-Hospital Cardiac Arrest
- Stroke
Dr. Liao's most frequent co-authors
- Michael Supples, MD9 shared papers
- Nancy K. Glober, MD8 shared papers
- Thomas Adam Lardaro, MD3 shared papers
Recent publications by Dr. Liao
Acad Emerg Med
DyspneaEmergency Medical ServicesHeart Failure
Emergency Medical ServicesInsulinInsulin, Short-Acting
Emergency Medical ServicesEmergency Service, HospitalMental Health
See who Dr. Liao researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Liao works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark Y. Liao received $254 in industry payments from 2019 to 2022
CMS Open Payments shows 2 general payments to Dr. Liao from 1 drug or device company from 2019 to 2022. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $254.
General payments to Dr. Liao by program year, 2019 to 2022
Companies that paid Dr. Liao the most, 2019 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark Y. 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Mark Y. 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. Mark Y. Liao's NPI number?
Dr. Mark Y. Liao's NPI number is 1508203514. It was assigned on May 30, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Y. Liao?
Dr. Mark Y. Liao is an emergency medicine physician in Indianapolis, Indiana. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Mark Y. Liao practice?
Dr. Liao practices at 1701 N Senate Blvd, Indianapolis, IN 46202. Dr. Liao's primary practice is IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health. Dmand AI also links Dr. Liao to 2 medical groups and 1 behavioral health center.
What is Dr. Mark Y. Liao's office phone number?
The practice phone on file for Dr. Liao is (317) 962-2000.
What is Dr. Mark Y. Liao's medical license number?
Dr. Liao holds Indiana license 01077226A.
Which hospitals is Dr. Mark Y. Liao affiliated with?
Dr. Liao practices at IU Health Methodist Hospital in Indianapolis, Indiana. Dr. Liao is also affiliated with Sidney & Lois Eskenazi Hospital.
What medical group is Dr. Mark Y. Liao part of?
Dr. Liao is linked to IU Health Medical Group. Dmand AI links Dr. Liao to 2 more medical groups.
Does Dr. Mark Y. Liao accept Medicare?
Yes. CMS data shows Dr. Liao billed Medicare for 99 services in 2024, and Dr. Liao accepts Medicare assignment.
How many Medicare patients does Dr. Mark Y. Liao see?
CMS counts 101 Medicare patients who saw Dr. Liao in 2024, with an average age of 67.
What services does Dr. Mark Y. Liao bill to Medicare?
In 2024, Dr. Liao's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and emergency department visit (99283).
Show 5 more questionsShow fewer questions
What drugs does Dr. Mark Y. Liao prescribe most?
In 2019 Medicare Part D data, Dr. Liao's most prescribed drugs by claims were Fluticasone Propionate.
Has Dr. Mark Y. Liao received payments from drug or device companies?
CMS Open Payments shows $254 in general payments to Dr. Liao from 1 company from 2019 to 2022. The largest total came from Stryker Corporation.
How long has Dr. Mark Y. Liao been practicing?
Dr. Liao graduated from medical school in 2015, 11 years ago.
Does Dr. Mark Y. Liao do research?
Dmand AI links 12 publications to Dr. Liao, published from 2019 to 2024.
Who does Dr. Mark Y. Liao publish with?
Dr. Liao's most frequent co-authors are Michael Supples, MD (9 shared papers), Nancy K. Glober, MD (8 shared papers) and Thomas Adam Lardaro, MD (3 shared papers).
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