Medicare Enrolled
Dr. Li Liu, M.D.
Internal Medicine · Monterey Park, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Liu from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Liu
Dr. Li Liu is an internal medicine specialist in Monterey Park, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Liu performed 8,832 Medicare services across 2,669 unique beneficiaries.
Between the years covered by Open Payments, Dr. Liu received a total of $18,434 from 54 pharmaceutical and/or device companies across 814 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in internal medicine. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Liu is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 20 years in practice
▲ Top 3% volume in CA
$18,434 industry payments
Medicare Practice Summary
Medicare Utilization ↗8,832
Medicare services
Top 3% in CA for internal medicine
2,669
Unique beneficiaries
$51
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~442 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
5,187 | $57 | $120 |
| Denosumab injection (Prolia/Xgeva) | 828 | $3 | $6 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
410 | $140 | $320 |
| Annual depression screening | 390 | $21 | $25 |
| Blood glucose test using hand-held instrument A test that measures the level of sugar in the blood using a portable device. The result helps monitor blood glucose levels. |
372 | $3 | $10 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
319 | $29 | $30 |
| Flu vaccine, high-dose High-dose seasonal influenza vaccine for adults aged 65 and older. Contains four times the antigen of standard-dose flu vaccines (60 mcg per strain), split-virus formulation, preservative-free, single-dose syringe. |
317 | $72 | $89 |
| Intravenous drug injection A procedure involving the administration of a medication or substance directly into a vein. |
303 | $21 | $30 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
144 | $1 | $30 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
133 | $66 | $100 |
| Home health plan of care certification Certification by a physician or allowed practitioner for Medicare-covered home health services under a home health plan of care. This includes contacting the home health agency and reviewing reports of patient status required by physicians. |
109 | $45 | $180 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
87 | $87 | $170 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
85 | $11 | $60 |
| Pneumonia vaccine administration This procedure involves the injection of a vaccine to protect against pneumococcal disease. It is administered by a healthcare provider. |
42 | $29 | $30 |
| Pneumococcal vaccine, 13-valent | 41 | $253 | $290 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
23 | $100 | $160 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
16 | $48 | $150 |
| Hospital discharge management, 30+ min This service covers the care provided by a physician or qualified healthcare professional on the day a patient is discharged from the hospital. It requires more than 30 minutes of total time spent on the day of discharge. |
14 | $97 | $150 |
| Initial nursing facility care, high complexity An initial visit by a healthcare provider to a patient in a nursing facility involving a high level of medical decision making, lasting at least 45 minutes. |
12 | $154 | $200 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
Industry Payment Transparency
Open Payments through 2024 ↗$18,434
Total received (2018-2024)
Avg $2,633/year across 7 years
Top 6% in CA for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
54
Companies
814
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$18,321 (99.4%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$113 (0.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$3,823
2023
$3,350
2022
$3,221
2021
$2,536
2020
$1,622
2019
$1,376
2018
$2,507
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
AstraZeneca Pharmaceuticals LP
$785
Novartis Pharmaceuticals Corporation
$347
Amgen Inc.
$311
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$293
AIMMUNE THERAPEUTICS, INC.
$275
Oyster Point Pharma, Inc.
$202
Almatica Pharma LLC
$193
Ardelyx, Inc.
$179
GlaxoSmithKline, LLC.
$170
Phathom Pharmaceuticals, Inc.
$156
VIVUS LLC
$106
Novo Nordisk Inc
$99
Boehringer Ingelheim Pharmaceuticals, Inc.
$84
Bayer Healthcare Pharmaceuticals Inc.
$74
Lundbeck LLC
$74
Lilly USA, LLC
$67
Sumitomo Pharma America, Inc.
$57
Lexicon Pharmaceuticals, Inc.
$57
IRONWOOD PHARMACEUTICALS, INC
$54
ABBVIE INC.
$54
Kowa Pharmaceuticals America, Inc.
$43
Regeneron Healthcare Solutions, Inc.
$32
Gilead Sciences, Inc.
$24
Alvogen Inc
$24
EMD Serono, Inc.
$24
PFIZER INC.
$22
E.R. Squibb & Sons, L.L.C.
$18
Top 3 companies account for 37.7% of 2024 payments
All-time payments by company (2018-2024) ›
Amgen Inc.
$2,902
AstraZeneca Pharmaceuticals LP
$2,666
Novo Nordisk Inc
$1,647
Kowa Pharmaceuticals America, Inc.
$959
Boehringer Ingelheim Pharmaceuticals, Inc.
$952
GlaxoSmithKline, LLC.
$707
Janssen Pharmaceuticals, Inc
$654
Almatica Pharma LLC
$625
Novartis Pharmaceuticals Corporation
$612
Amarin Pharma Inc.
$542
ABBVIE INC.
$539
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$506
AbbVie Inc.
$459
Nestle HealthCare Nutrition Inc.
$374
Sunovion Pharmaceuticals Inc.
$317
Gilead Sciences, Inc.
$285
AIMMUNE THERAPEUTICS, INC.
$275
Merck Sharp & Dohme Corporation
$260
Oyster Point Pharma, Inc.
$247
Sumitomo Pharma America, Inc.
$225
Bayer Healthcare Pharmaceuticals Inc.
$215
Lilly USA, LLC
$213
Astellas Pharma US Inc
$182
Ardelyx, Inc.
$179
Phathom Pharmaceuticals, Inc.
$156
VIVUS LLC
$154
Bayer HealthCare Pharmaceuticals Inc.
$138
NESTLE HEALTHCARE NUTRITION INC.
$106
Lundbeck LLC
$96
AbbVie, Inc.
$93
Merck Sharp & Dohme LLC
$91
E.R. Squibb & Sons, L.L.C.
$86
PFIZER INC.
$85
Radius Health, Inc.
$84
KVK-Tech, Inc.
$75
Allergan Inc.
$74
Allergan, Inc.
$70
Esperion Therapeutics, Inc.
$68
IBSA Pharma Inc.
$65
Dexcom, Inc.
$65
Lexicon Pharmaceuticals, Inc.
$57
IRONWOOD PHARMACEUTICALS, INC
$54
Regeneron Healthcare Solutions, Inc.
$32
Smith+Nephew, Inc.
$32
Alvogen Inc
$24
Arbor Pharmaceuticals, Inc.
$24
EMD Serono, Inc.
$24
RedHill Biopharma Inc.
$23
Biogen, Inc.
$22
Takeda Pharmaceuticals U.S.A., Inc.
$21
Otsuka America Pharmaceutical, Inc.
$20
ASCEND Therapeutics US, LLC
$20
Genentech USA, Inc.
$18
ARBOR PHARMACEUTICALS, INC.
$17
Top 3 companies account for 39.1% of all-time payments
Associated products mentioned in payments ›
AIRSUPRA · APTIOM · Aimovig · BELSOMRA · BINOSTO · BREO · BREZTRI · BRILINTA · CITALOPRAM · COLLAGENASE SANTYL · CREON · Creon · DIFICID · DUPIXENT · Dexcom G6 Transmitter · ELIQUIS · ENTRESTO · EVENITY · Edarbi · Edarbyclor · FARXIGA · GEMTESA · GRALISE · IBSRELA · INVOKANA · JANUVIA · JARDIANCE · Kerendia · LEQVIO · LICART · LINZESS · LIVALO · LOREEV XR · LYRICA · Linzess · Livalo · MOUNJARO · MYRBETRIQ · Myrbetriq · NEXLETOL · Novoeight · Otezla · Ozempic · PANCREAZE · PAXLOVID · Prolia · REXULTI · RYBELSUS · Repatha · Rybelsus · SEGLENTIS · SHINGRIX · STIOLTO RESPIMAT · SYMBICORT · Seglentis · TEFLARO · TERIPARATIDE · TRADJENTA · TRELEGY ELLIPTA · TRINTELLIX · TRULICITY · TYRVAYA · Talicia · Tymlos · UBRELVY · VIBERZI · VOQUEZNA · VOWST · VRAYLAR · Vascepa · Vemlidy · Victoza · XARELTO · XIFAXAN · Xofluza · ZENPEP · ZORYVE
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (99%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 6% for internal medicine in CA.
Geographic Context
Internal medicine physicians within 10 mi
5,597
Per 100K population
56.8
County median income
$87,760
Nearest hospital
MONTEREY PARK HOSPITAL
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Liu is a clinical cardiology specialist, with above-average Medicare volume (top 3% in CA), with low-engagement industry engagement in the top 6% of CA peers, with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Liu experienced with office visit, established patient (20-29 min)?
Based on Medicare claims data, Dr. Liu performed 5,187 office visit, established patient (20-29 min) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Liu receive payments from pharmaceutical companies?
Yes. Dr. Liu received a total of $18,434 from 54 companies across 814 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Liu's costs compare to other internal medicine physicians in Monterey Park?
Dr. Liu's average Medicare payment per service is $51. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Liu) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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