Medicare Enrolled

Dr. David Siu, M.D.

Optician · York, PA
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
1920 QUEENSWOOD DR, York, PA 17403
7177473566
Registered in NPPES since 2006
NPI: 1255303939 verify on NPPES ↗
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. Siu 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. Siu? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Siu

Dr. David Siu is an optician specialist in York, PA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Siu performed 1,545 Medicare services in 2023. These records do not provide a deduplicated patient total.

Between the years covered by Open Payments, Dr. Siu received a total of $4,894 from 40 pharmaceutical and/or device companies across 224 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Siu 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 of NPI registration ▲ Top 21% volume in PA $4,894 industry payments

Medicare Practice Summary — 2023

Medicare Utilization ↗
1,545
Medicare services
Top 21% in PA for optician
Not available
Unique patients (not deduplicated)
$96
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →

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
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.
530 $91 $130
Dialysis services, partial month (age 20+)
Dialysis treatment provided for a partial month of service for patients aged 20 years or older.
376 $7 $20
Office visit, established patient, complex (40-54 min)
An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter.
238 $128 $194
Critical care, first 30-74 min
Emergency medical care for a critically ill or injured patient lasting between 30 and 74 minutes. This service involves direct patient care and medical decision making to stabilize the patient.
124 $164 $315
Initial hospital admission, high complexity
Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter.
96 $132 $225
Dialysis services for patients 20 or older
Dialysis treatment provided to patients aged 20 years or older, involving four or more physician visits per month.
93 $275 $425
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.
43 $62 $85
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.
28 $86 $138
New patient office visit, complex (60-74 min) 17 $165 $239
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. These counts do not measure clinical quality or years of experience.

Industry Payment Transparency

Open Payments through 2024 ↗
$4,894
Total received (2018-2024)
Avg $699/year across 7 years
Top 24% in PA for optician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
40
Companies
224
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →

Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$1,326
2023
$813
2022
$700
2021
$576
2020
$455
2019
$583
2018
$442

Payments by company (2024)

Travere Therapeutics, Inc.
$455
AstraZeneca Pharmaceuticals LP
$199
Amgen Inc.
$130
Mallinckrodt Hospital Products Inc.
$93
Kyowa Kirin, Inc.
$56
Takeda Pharmaceuticals U.S.A., Inc.
$50
Otsuka Pharmaceutical Development & Commercialization, Inc.
$44
Ardelyx, Inc.
$40
GlaxoSmithKline, LLC.
$36
Lilly USA, LLC
$29
Otsuka America Pharmaceutical, Inc.
$29
Ultragenyx Pharmaceutical Inc.
$28
CALLIDITAS THERAPEUTICS US INC.
$25
Fresenius USA Marketing, Inc.
$25
Bayer Healthcare Pharmaceuticals Inc.
$19
Medtronic, Inc.
$19
Novartis Pharmaceuticals Corporation
$18
Vifor Pharma, Inc.
$17
OPKO Pharmaceuticals, LLC
$16
Top 3 companies account for 59.1% of 2024 payments
All-time payments by company (2018-2024) ›
AstraZeneca Pharmaceuticals LP
$647
Travere Therapeutics, Inc.
$572
Amgen Inc.
$572
Otsuka America Pharmaceutical, Inc.
$441
Otsuka Pharmaceutical Development & Commercialization, Inc.
$228
Fresenius USA Marketing, Inc.
$215
Alexion Pharmaceuticals, Inc.
$209
Relypsa, Inc.
$196
Vifor Pharma, Inc.
$162
GlaxoSmithKline, LLC.
$161
Mallinckrodt Hospital Products Inc.
$126
Takeda Pharmaceuticals U.S.A., Inc.
$121
AKEBIA THERAPEUTICS INC
$115
Ultragenyx Pharmaceutical Inc.
$101
OPKO Pharmaceuticals, LLC
$86
Kyowa Kirin, Inc.
$85
BAXTER HEALTHCARE
$76
Aurinia Pharma U.S., Inc.
$67
Baxter Healthcare
$63
Ardelyx, Inc.
$59
Bayer HealthCare Pharmaceuticals Inc.
$57
Calliditas Therapeutics US Inc.
$57
Horizon Therapeutics plc
$54
CALLIDITAS THERAPEUTICS US INC.
$53
Bayer Healthcare Pharmaceuticals Inc.
$38
Retrophin, Inc.
$35
Alnylam Pharmaceuticals Inc.
$35
Lilly USA, LLC
$29
NxStage Medical, Inc.
$25
bioMerieux Inc
$21
AMAG Pharmaceuticals, Inc.
$21
Shire North American Group Inc
$21
Boehringer Ingelheim Pharmaceuticals, Inc.
$20
Avenu Medical Inc.
$20
GENZYME CORPORATION
$19
Daiichi Sankyo Inc.
$19
Medtronic, Inc.
$19
Novartis Pharmaceuticals Corporation
$18
COVIDIEN LP
$16
Janssen Pharmaceuticals, Inc
$15
Top 3 companies account for 36.6% of all-time payments
Associated products mentioned in payments ›
(815) Thiola · ACTHAR · AURYXIA · Aranesp · Auryxia · BENLYSTA · CRYSVITA · Crysvita · Dialyzers · Ellipsys · FABRY-DISEASE · FARXIGA · FERAHEME · GATTEX · IBSRELA · INJECTAFER · JARDIANCE · JYNARQUE · KRYSTEXXA · Kerendia · Korsuva · LOKELMA · LUPKYNIS · NATPARA · OXLUMO · Parsabiv · RAYALDEE · Renal - Acute · Renal - Amia · Renal - Chronic · Renal - Non Product Related · Renal - PD · SAMSCA · SOLIRIS · SYSTEM ONE · TARPEYO · TAVNEOS · TERLIVAZ · Tavneos · Trintellix · ULTOMIRIS · Uloric · Ultomiris · Velphoro · Veltassa · XARELTO
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. 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 →
Looking for an optician specialist in York?
Compare opticians in the York area by procedure volume, costs, and industry payment transparency.
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Geographic Context

Opticians in nearby ZIP areas
91
County median income
$82,238
Nearest hospital to ZIP centroid (approximate)
WELLSPAN YORK HOSPITAL
0.0 mi

Data Sources

Provider Registry NPPES NPPES snapshot; verify current record
Medicare Enrollment PECOS PECOS snapshot
Practice Data Medicare Util. Annual (CY lag)
Industry Payments Open Payments CY 2024
Disciplinary History — Not included 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. Siu is a clinical cardiology specialist, with above-average Medicare volume (top 21% in PA), 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. Siu experienced with hospital follow-up visit, high complexity?
Based on Medicare claims data, Dr. Siu performed 530 hospital follow-up visit, high complexity services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Siu receive payments from pharmaceutical companies?
Yes. Dr. Siu received a total of $4,894 from 40 companies across 224 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. 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. Siu's costs compare to other opticians in York?
Dr. Siu's average Medicare payment per service is $96. 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. Siu) 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 the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. 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?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
About this page

This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Industry payment disclosure alone establishes neither wrongdoing nor legality. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →