Doctor profile · Federal record
Dr. Katherine Liu, MD
Internal Medicine Physician (CMS: Pediatric Medicine) · Pediatrics Physician · Portland, ME
- NPI 1891056149
- Accepts Medicare
- MIPS 93.1 / 100 · 2023
- 14 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
22 Bramhall St
Portland, ME 04102
(207) 662-6209
fax (207) 662-6254
Credentials & registration
- NPI registered
- June 2012 — 14 yrs on file
- Profile last updated
- May 24, 2018
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Maine #MD21238
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1891056149. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
165
Distinct HCPCS
3
Medicare allowed
$15,535
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 96 | 47 | $78 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 49 | 27 | $118 | |
99239 |
Hospital discharge day management, more than 30 minutes | 20 | 19 | $113 |
In context: peer comparison
Among 43 peers in Portland Internal Medicine Physician, average services per provider: 61. This provider delivers 2.7× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Katherine Liu's medical specialty?
Dr. Katherine Liu practices Internal Medicine Physician in Portland, ME.
Where does Dr. Katherine Liu practice?
Dr. Katherine Liu practices at 22 Bramhall St, Portland, ME 04102. Office phone: 2076626209.
What is Dr. Katherine Liu's NPI?
Dr. Katherine Liu's National Provider Identifier (NPI) is 1891056149, issued by NPPES.
Does Dr. Katherine Liu accept Medicare assignment?
Yes. Dr. Katherine Liu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine Liu commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.