Dr. Katherine T. Liu, MD
- Medicare services, 2024
- 199
- Medicare patients, 2024
- 116
- Part D claims, 2024
- 18
- Publications
- 5
- MIPS score, 2024
- 98
- Practice address
- 22 Bramhall St, Portland, ME 04102
- Practice phone
- Call (207) 662-0111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Katherine T. Liu is an internist in Portland, Maine
Dr. Liu practices at MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth.
Dr. Liu's NPI, 1891056149, was assigned on June 4, 2012. Dr. Liu graduated from Medical College of Wisconsin in 2012. Dr. Liu holds Maine license MD21238.
- NPI
- 1891056149NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557595337
- NPI enumeration date
- June 4, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (207) 662-0111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katherine T. Liu practices at MaineHealth Maine Medical Center in Portland, Maine
Dr. Liu's primary practice is MaineHealth Maine Medical Center, at 22 Bramhall St, Portland, ME 04102 in Cumberland County. The practice phone is (207) 662-0111.
- MaineHealth Maine Medical Center22 Bramhall St, Portland, ME 04102 · Cumberland CountyPhone(207) 662-0111
Source: Dmand AI Affiliation Data
Dr. Katherine T. Liu is affiliated with 1 site of care and 3 medical groups
Dr. Liu's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth. The medical group on file is MaineHealth Primary Care - Family Medicine - Portland. Dmand AI also links Dr. Liu to 2 more medical groups, each named with a free account. Dr. Liu's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Katherine T. Liu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Liu practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MaineHealth Maine Medical Center | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katherine T. Liu is one of 572 internists in Maine
Internal medicine is Dr. Liu's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Liu is licensed in Maine.
Specialties and state licenses
- Internal medicine, MainePrimary
Internists near Dr. Liu
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. Katherine T. Liu billed Medicare for 199 services in 2024
CMS data shows 199 Medicare services from Dr. Liu across 3 procedure codes in 2024, for 116 Medicare patients. Medicare paid $16,190 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Liu's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1652024: 19921%
Dr. Liu compared with the Maine median for internists, 2024
- Dr. Liu
- Maine median
- Medicare services
- 199vs 31437% below
- Medicare patients
- 116vs 15425% below
- Part D claims
- 16vs 21192% below
Medians across 600 internists in Maine with Dmand AI profiles that report each measure.
Dr. Liu'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. Liu?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Liu and other internists in Maine.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Katherine T. Liu treated 116 Medicare patients in 2024, average age 77
CMS counts 116 Medicare patients who saw Dr. Liu in 2024. The largest group is 75 to 84, with 48 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 28% are also on Medicaid. Their average risk score is 2.38, 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. Liu's median patient age at 76, with 58% women.
Dr. Liu's Medicare patients by age, 2024
Dr. Liu's Medicare patients by sex, 2024
- Women6253%
- Men5447%
Chronic conditions among Dr. Liu's Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
- Arthritis59%
- Mood disorders49%
- Depression48%
- Atrial fibrillation47%
- Chronic kidney disease47%
- Anxiety45%
Share of Medicare patients with each condition. A patient can have several.
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 76
Patient panel by sex, all payers
- Women58%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Katherine T. Liu wrote 18 Medicare Part D claims in 2024
In 2024, Dr. Liu wrote 18 Medicare Part D claims for 11 patients. 89% of them were for generic drugs. CMS names the drug for 16 of them, across 1 drug with 11 or more claims each, at $269 in total drug cost. In 2016, CMS named 29 claims across 2 drugs.
Dr. Liu's Part D claims by kind of drug, 2024
- Generic16 claims89%
- Brand-name and other2 claims11%
Dr. Liu's most prescribed drugs by claims, 2017
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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 292017: 1645%
Drugs named by CMS: 1 in 2017, 2 in 2016.
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. Katherine T. Liu scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Liu for performance year 2024, reported through an alternative payment model (APM). Dr. Liu accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Liu's MIPS scores, performance year 2024
- 98of 100Final score
- 83.3of 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. Katherine T. Liu has 5 publications on record
Dmand AI links 5 papers to Dr. Liu, published from 2023 to 2024. 2023 was the busiest year, with 2. The most frequent topics are Hospitalists. Dr. Liu has published most often in J Hosp Med. Dr. Liu's most frequent co-authors are Andrew D. Auerbach, MD, Evans Keith Hiatt Brown and Elizabeth Ann Cerceo, MD.
Topics Dr. Liu writes about most
- Hospitalists
Dr. Liu's most frequent co-authors
- Andrew D. Auerbach, MD1 shared paper
- Evans Keith Hiatt Brown1 shared paper
- Elizabeth Ann Cerceo, MD1 shared paper
Recent publications by Dr. Liu
See who Dr. Liu researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Liu works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Katherine T. Liu graduated from Medical College of Wisconsin
Dr. Liu graduated from Medical College of Wisconsin in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Katherine T. 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 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)Clinician Public Reporting: Overall MIPS Performance (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 |
| 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. Katherine T. 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. Katherine T. Liu's NPI number?
Dr. Katherine T. Liu's NPI number is 1891056149. It was assigned on June 4, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine T. Liu?
Dr. Katherine T. Liu is an internist in Portland, Maine. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Katherine T. Liu practice?
Dr. Liu practices at 22 Bramhall St, Portland, ME 04102. Dr. Liu's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth. Dmand AI also links Dr. Liu to 2 medical groups.
What is Dr. Katherine T. Liu's office phone number?
The practice phone on file for Dr. Liu is (207) 662-0111.
What is Dr. Katherine T. Liu's medical license number?
Dr. Liu holds Maine license MD21238.
Which hospitals is Dr. Katherine T. Liu affiliated with?
Dr. Liu practices at MaineHealth Maine Medical Center in Portland, Maine.
What medical group is Dr. Katherine T. Liu part of?
Dr. Liu is linked to MaineHealth Primary Care - Family Medicine - Portland. Dmand AI links Dr. Liu to 2 more medical groups.
Does Dr. Katherine T. Liu accept Medicare?
Yes. CMS data shows Dr. Liu billed Medicare for 199 services in 2024, and Dr. Liu accepts Medicare assignment.
What is Dr. Katherine T. Liu's MIPS score?
Dr. Liu's MIPS final score for performance year 2024 is 98 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Katherine T. Liu see?
CMS counts 116 Medicare patients who saw Dr. Liu in 2024, with an average age of 77.
Show 6 more questionsShow fewer questions
What services does Dr. Katherine T. Liu bill to Medicare?
In 2024, Dr. Liu's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).
Where did Dr. Katherine T. Liu go to medical school?
Dr. Liu graduated from Medical College of Wisconsin in 2012.
What drugs does Dr. Katherine T. Liu prescribe most?
In 2017 Medicare Part D data, Dr. Liu's most prescribed drugs by claims were Atorvastatin Calcium.
How long has Dr. Katherine T. Liu been practicing?
Dr. Liu graduated from medical school in 2012, 14 years ago.
Does Dr. Katherine T. Liu do research?
Dmand AI links 5 publications to Dr. Liu, published from 2023 to 2024.
Who does Dr. Katherine T. Liu publish with?
Dr. Liu's most frequent co-authors are Andrew D. Auerbach, MD (1 shared paper), Evans Keith Hiatt Brown (1 shared paper) and Elizabeth Ann Cerceo, MD (1 shared paper).
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