Dr. Margaret C. Liu, MD
- Part D claims, 2024
- 108
- Hospital affiliations
- 2
- Industry payments
- $1,078
- Medical group
- 1
- State license
- 1
- Practice address
- 5823 W Eugie Ave Ste B, Glendale, AZ 85304
- Practice phone
- Call (818) 390-3760
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Glendale Endoscopy Center
Surgery Center - Not Medicare-Certified · Glendale, Arizona
Find Dr. Liu'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. Margaret C. Liu is a gastroenterologist in Glendale, Arizona
Dr. Liu practices at Glendale Endoscopy Center in Glendale, Arizona.
Dr. Liu's NPI, 1134689284, was assigned on March 24, 2019. Dr. Liu graduated from University of Arizona College of Medicine - Phoenix in 2019. Dr. Liu holds Arizona license 65954.
- NPI
- 1134689284NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557696630
- NPI enumeration date
- March 24, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (818) 390-3760
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Margaret C. Liu practices at Glendale Endoscopy Center in Glendale, Arizona
Dr. Liu's primary practice is Glendale Endoscopy Center, at 5823 W Eugie Ave Ste B, Glendale, AZ 85304. The practice phone is (818) 390-3760.
- Glendale Endoscopy Center5823 W Eugie Ave Ste B, Glendale, AZ 85304Phone(818) 390-3760
Source: Dmand AI Affiliation Data
Dr. Margaret C. Liu is affiliated with 4 sites of care and 1 medical group
Dr. Liu's primary practice is Glendale Endoscopy Center in Glendale, Arizona. Dr. Liu is also affiliated with Banner Thunderbird Medical Center. The medical group on file is Arizona Digestive Health. Dmand AI also links Dr. Liu to 1 more hospital and 1 group practice or clinic, 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. Margaret C. Liu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Liu practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Glendale Endoscopy Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Margaret C. Liu is one of 380 gastroenterologists in Arizona
Gastroenterology is Dr. Liu's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Liu is licensed in Arizona.
Specialties and state licenses
- Gastroenterology, ArizonaPrimary
Gastroenterologists near Dr. Liu
Counts of gastroenterologists 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. Margaret C. Liu's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Liu's median patient age at 62, with 73% women.
Dr. Liu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women73%
- Men25%
Source: Dmand AI Patient Panel Data
Dr. Margaret C. Liu wrote 108 Medicare Part D claims in 2024
In 2024, Dr. Liu wrote 108 Medicare Part D claims for 40 patients. 77% of them were for generic drugs. CMS names the drug for 51 of them, across 3 drugs with 11 or more claims each, at $4,647 in total drug cost. In 2023, CMS named 34 claims across 2 drugs.
Dr. Liu's Part D claims by kind of drug, 2024
- Generic83 claims77%
- Brand-name25 claims23%
Dr. Liu'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: 342024: 5150%
Drugs named by CMS: 3 in 2024, 2 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
Dr. Margaret C. Liu ranks in the 84th percentile for colonoscopy in Medicare
Dr. Liu accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Liu as offering telehealth. CMS counts 119 procedures of colonoscopy by Dr. Liu, more than 84% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Liu ranks in Medicare procedure volume
- Colonoscopy
- 84th percentile119 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 67th percentile62 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Margaret C. Liu received $1,078 in industry payments in 2025
CMS Open Payments shows 42 general payments to Dr. Liu from 13 drug and device companies in 2025. Food and beverage make up the largest share, 99% of the total. Janssen Pharmaceuticals, Inc paid the most, $356.
General payments to Dr. Liu by kind, 2025 to 2025
- Food and beverage$1,06999%
- Education$91%
Companies that paid Dr. Liu the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Margaret C. Liu graduated from University of Arizona College of Medicine - Phoenix
Dr. Liu graduated from University of Arizona College of Medicine - Phoenix in 2019.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Margaret C. Liu'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Margaret C. Liu
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. Margaret C. Liu's NPI number?
Dr. Margaret C. Liu's NPI number is 1134689284. It was assigned on March 24, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Margaret C. Liu?
Dr. Margaret C. Liu is a gastroenterologist in Glendale, Arizona. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Margaret C. Liu practice?
Dr. Liu practices at 5823 W Eugie Ave Ste B, Glendale, AZ 85304. Dr. Liu's primary practice is Glendale Endoscopy Center in Glendale, Arizona. Dmand AI also links Dr. Liu to 1 hospital and 1 group practice or clinic.
What is Dr. Margaret C. Liu's office phone number?
The practice phone on file for Dr. Liu is (818) 390-3760.
What is Dr. Margaret C. Liu's medical license number?
Dr. Liu holds Arizona license 65954.
Which hospitals is Dr. Margaret C. Liu affiliated with?
Dr. Liu is affiliated with Banner Thunderbird Medical Center. Dmand AI links Dr. Liu to 1 more hospital.
What medical group is Dr. Margaret C. Liu part of?
Dr. Liu is linked to Arizona Digestive Health.
Does Dr. Margaret C. Liu accept Medicare?
Yes. CMS lists Dr. Liu as accepting Medicare assignment.
Does Dr. Margaret C. Liu offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Liu as offering telehealth services.
Where did Dr. Margaret C. Liu go to medical school?
Dr. Liu graduated from University of Arizona College of Medicine - Phoenix in 2019.
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What drugs does Dr. Margaret C. Liu prescribe most?
In 2024 Medicare Part D data, Dr. Liu's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole-Sodium Bicarbonate and Omeprazole.
Has Dr. Margaret C. Liu received payments from drug or device companies?
CMS Open Payments shows $1,078 in general payments to Dr. Liu from 13 companies from 2025 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Margaret C. Liu been practicing?
Dr. Liu graduated from medical school in 2019, 7 years ago.
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