Medicare Enrolled
Dr. Ray Hsiao, MD
Internal Medicine · Hacienda Heights, 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. Hsiao 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 →
Are you Dr. Hsiao?
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What this data tells you about Dr. Hsiao
Dr. Ray Hsiao is an internal medicine specialist in Hacienda Heights, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Hsiao performed 19,114 Medicare services across 3,963 unique beneficiaries.
Between the years covered by Open Payments, Dr. Hsiao received a total of $22,400 from 61 pharmaceutical and/or device companies across 1036 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. Hsiao 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.
✓ 19 years in practice
▲ Top 1% volume in CA
$22,400 industry payments
Medicare Practice Summary
Medicare Utilization ↗19,114
Medicare services
Top 1% in CA for internal medicine
3,963
Unique beneficiaries
$44
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~1,006 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 |
|---|---|---|---|
| Joint lubricant injection (TriVisc) An injection of hyaluronan or a derivative into a joint space. The dose specified is 1 milligram. |
4,500 | $7 | $20 |
| Chronic care management, first 20 min/month This service covers the first 20 minutes of clinical staff time directed by a healthcare professional each calendar month to manage chronic conditions. |
3,546 | $54 | $90 |
| 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. |
2,377 | $77 | $136 |
| Chronic care management, additional 20 min/month This service covers an extra 20 minutes of clinical staff time directed by a healthcare professional for managing two or more chronic conditions each calendar month. |
2,069 | $41 | $80 |
| Remote patient monitoring management, 20 min/month Management based on results from remote vital sign monitoring for the first 20 minutes per calendar month. |
1,342 | $43 | $65 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,194 | $49 | $95 |
| Remote patient monitoring device, 30 days Initial setup of devices for remote monitoring of body functions with daily data transmission or alerts. This service covers the first 30 days of the monitoring period. |
1,034 | $47 | $85 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
554 | $8 | $10 |
| Ultrasound-guided large joint aspiration or injection This procedure uses ultrasound imaging to guide the removal of fluid from or the injection of medication into a large joint. |
296 | $117 | $220 |
| Advance care planning consultation, first 30 min A session focused on discussing and documenting future healthcare preferences and goals. This service covers the initial 30 minutes of the planning discussion. |
255 | $86 | $120 |
| Annual alcohol misuse screening, 5 to 15 minutes | 251 | $21 | $40 |
| Annual depression screening | 250 | $21 | $40 |
| Annual intensive behavioral therapy for cardiovascular disease, 15 minutes A yearly, in-person session focused on intensive behavioral therapy to help manage cardiovascular disease. The session lasts for 15 minutes and is conducted with the patient individually. |
250 | $28 | $60 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
225 | $142 | $200 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
211 | $29 | $32 |
| Flu vaccine, quadrivalent A flu shot containing four strains of the influenza virus to help prevent seasonal influenza infection. |
208 | $76 | $95 |
| Viscosupplementation injection for joint An injection of hyaluronic acid or a derivative into a joint to provide lubrication and cushioning. |
111 | $59 | $122 |
| Complete ultrasound of abdomen A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen. |
84 | $106 | $220 |
| 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. |
81 | $42 | $100 |
| 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. |
54 | $13 | $97 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
54 | $124 | $250 |
| 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. |
35 | $93 | $165 |
| Complete pelvic ultrasound An imaging test using sound waves to create pictures of the organs and structures within the pelvis. |
27 | $98 | $222 |
| Complete ultrasound of abdomen and pelvis blood flow This procedure uses sound waves to create images of blood flow in the arteries and veins of the abdomen and pelvis. It evaluates the rate and direction of blood movement within these vessels. |
22 | $248 | $450 |
| Telephone medical discussion, 11-20 minutes A phone conversation with a physician lasting between 11 and 20 minutes. |
20 | $69 | $120 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
19 | $178 | $300 |
| 2-day continuous ECG monitoring A continuous electrocardiogram recording that captures heart activity over a 48-hour period. This test helps detect irregular heart rhythms or other cardiac issues that may not appear during a standard, short-term ECG. |
15 | $17 | $75 |
| 2-day continuous ECG with professional review A two-day continuous electrocardiogram recording that includes a review by a healthcare professional. |
15 | $16 | $75 |
| Remote physiologic monitoring setup and education Initial setup of remote monitoring equipment and patient education on its use. |
15 | $18 | $35 |
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 ↗$22,400
Total received (2018-2024)
Avg $3,200/year across 7 years
Top 5% in CA for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
61
Companies
1,036
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
$19,947 (89.0%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$1,540 (6.9%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$913 (4.1%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,362
2023
$2,578
2022
$2,257
2021
$3,730
2020
$4,192
2019
$3,443
2018
$3,837
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
AstraZeneca Pharmaceuticals LP
$661
GlaxoSmithKline, LLC.
$433
Amgen Inc.
$192
Bayer Healthcare Pharmaceuticals Inc.
$111
Lilly USA, LLC
$102
Novo Nordisk Inc
$96
Phathom Pharmaceuticals, Inc.
$95
Radius Health, Inc.
$94
Boehringer Ingelheim Pharmaceuticals, Inc.
$91
Abbott Laboratories
$89
Janssen Pharmaceuticals, Inc
$79
Novartis Pharmaceuticals Corporation
$70
Merck Sharp & Dohme LLC
$39
IRONWOOD PHARMACEUTICALS, INC
$37
PFIZER INC.
$26
Eisai Inc.
$25
Alvogen Inc
$24
DePuy Synthes Sales Inc.
$24
Sumitomo Pharma America, Inc.
$22
Esperion Therapeutics, Inc.
$19
Kowa Pharmaceuticals America, Inc.
$18
ABBVIE INC.
$15
Top 3 companies account for 54.4% of 2024 payments
All-time payments by company (2018-2024) ›
AstraZeneca Pharmaceuticals LP
$3,503
GlaxoSmithKline, LLC.
$2,955
Amarin Pharma Inc.
$2,089
Gilead Sciences, Inc.
$1,540
Janssen Pharmaceuticals, Inc
$1,457
Boehringer Ingelheim Pharmaceuticals, Inc.
$1,345
Novo Nordisk Inc
$951
Amgen Inc.
$914
Astellas Pharma US Inc
$913
Merck Sharp & Dohme Corporation
$599
Lilly USA, LLC
$575
Novartis Pharmaceuticals Corporation
$563
PFIZER INC.
$528
Esperion Therapeutics, Inc.
$428
Kowa Pharmaceuticals America, Inc.
$403
Allergan Inc.
$244
Ironwood Pharmaceuticals, Inc
$237
Merck Sharp & Dohme LLC
$231
Bayer Healthcare Pharmaceuticals Inc.
$189
Scilex Pharmaceuticals Inc.
$187
Radius Health, Inc.
$186
AbbVie Inc.
$175
Bayer HealthCare Pharmaceuticals Inc.
$161
Takeda Pharmaceuticals U.S.A., Inc.
$159
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$136
IRONWOOD PHARMACEUTICALS, INC
$135
ABBVIE INC.
$120
UCB, Inc.
$102
Phathom Pharmaceuticals, Inc.
$95
Alvogen Inc
$91
Abbott Laboratories
$89
SUN PHARMACEUTICAL INDUSTRIES INC.
$76
VIVUS, Inc.
$67
Sunovion Pharmaceuticals Inc.
$64
E.R. Squibb & Sons, L.L.C.
$63
Nestle HealthCare Nutrition Inc.
$59
ARBOR PHARMACEUTICALS, INC.
$59
VIVUS LLC
$55
Allergan, Inc.
$51
Hikma Pharmaceuticals USA
$50
Corium, LLC
$48
Arbor Pharmaceuticals, Inc.
$46
Sumitomo Pharma America, Inc.
$45
SANOFI-AVENTIS U.S. LLC
$42
AbbVie, Inc.
$35
Sanofi Pasteur Inc.
$32
Eyevance Pharmaceuticals LLC
$29
Regeneron Healthcare Solutions, Inc.
$29
Bioventus LLC
$27
Eisai Inc.
$25
Avanos Medical
$24
DePuy Synthes Sales Inc.
$24
Biogen, Inc.
$24
DEXCOM, INC.
$20
EISAI INC.
$18
DERMIRA, INC.
$17
RedHill Biopharma Inc.
$15
Avanir Pharmaceuticals, Inc.
$14
Lupin Inc.
$14
Seqirus USA Inc
$13
SCILEX PHARMACEUTICALS INC.
$13
Top 3 companies account for 38.2% of all-time payments
Associated products mentioned in payments ›
ADLARITY · AIRSUPRA · ANORO · ANORO ELLIPTA · ANTARA · AREXVY · Adlarity · Aduhelm · Aimovig · Amitiza · BASAGLAR · BELSOMRA · BEVESPI AEROSPHERE · BREO · BREZTRI · BREZTRI AEROSPHERE · BRILINTA · BROVANA · BYSTOLIC · Briviact · CHANTIX · COLOGUARD · CREON · Cequa · Creon · DEXCOM G6 TRANSMITTER · ELIQUIS · EMGALITY · ENTRESTO · EUCRISA · EVENITY · Edarbi · FARXIGA · FREESTYLE LIBRE 3 · Fluad Quadrivalent · GARDASIL 9 · GEMTESA · GLYXAMBI · INVOKANA · JANUVIA · JARDIANCE · Kerendia · LEQVIO · LINZESS · LONHALA MAGNAIR · LYRICA · Leqembi · Linzess · Livalo · MENACTRA · MOUNJARO · MOVANTIK · Mitigare · Movantik · NAMZARIC · NEXLETOL · Neupro · Nuedexta · ORTHOVISC · Otezla · Ozempic · PANCREAZE · PNEUMOVAX 23 · PRALUENT ALIROCUMAB INJECTION · PREMARIN · PREVNAR 13 · PREVNAR 20 · Prolia · QBREXZA · RYBELSUS · Repatha · Rybelsus · SEGLENTIS · SHINGRIX · SOLIQUA · SPIRIVA · STIOLTO RESPIMAT · SYMBICORT · Supartz FX Sodium Hyaluronate · TERIPARATIDE · TOUJEO · TRADJENTA · TRELEGY ELLIPTA · TRIVISC SODIUM HYALURONATE · TRULICITY · Tresiba · Trintellix · Tymlos · UBRELVY · UTIBRON · Uloric · VERQUVO · VIBERZI · VOQUEZNA · VRAYLAR · Vascepa · Vemlidy · XARELTO · XIFAXAN · ZENPEP · ZORYVE · ZOSTAVAX · ZTLido · ZTLido 30 POUCH in 1 CARTON 1 PATCH in 1 POUCH · Zerviate
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 (89%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 5% for internal medicine in CA.
Geographic Context
Internal medicine physicians within 10 mi
4,383
Per 100K population
44.5
County median income
$87,760
Nearest hospital
PIH HEALTH HOSPITAL-WHITTIER
3.3 mi
3.3 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. Hsiao is a clinical cardiology specialist, with above-average Medicare volume (top 1% in CA), with low-engagement industry engagement in the top 5% of CA peers, with 19 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. Hsiao experienced with joint lubricant injection (trivisc)?
Based on Medicare claims data, Dr. Hsiao performed 4,500 joint lubricant injection (trivisc) 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. Hsiao receive payments from pharmaceutical companies?
Yes. Dr. Hsiao received a total of $22,400 from 61 companies across 1,036 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. Hsiao's costs compare to other internal medicine physicians in Hacienda Heights?
Dr. Hsiao's average Medicare payment per service is $44. 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. Hsiao) 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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