Medicare Enrolled

Dr. Ziyad Ayyoub, M.D.

Spinal Cord Injury Medicine Physician · Paramount, CA
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
Speaking/Promotional
16660 PARAMOUNT BLVD STE 101, Paramount, CA 90723
5626330976
In practice since 2006 (19 years)
NPI: 1356451579 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. Ayyoub 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. Ayyoub

Dr. Ziyad Ayyoub is a spinal cord injury medicine physician in Paramount, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Ayyoub performed 4,218 Medicare services across 377 unique beneficiaries.

Between the years covered by Open Payments, Dr. Ayyoub received a total of $363,112 from 19 pharmaceutical and/or device companies across 472 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in spinal cord injury medicine physician. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Ayyoub 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 50% volume in CA $363,112 industry payments

Medicare Practice Summary

Medicare Utilization ↗
4,218
Medicare services
Top 50% in CA for spinal cord injury medicine physician
377
Unique beneficiaries
$70
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~222 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
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.
3,901 $66 $432
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.
163 $100 $144
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.
154 $141 $540
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 ↗
$363,112
Total received (2018-2024)
Avg $51,873/year across 7 years
Top 0% in CA for spinal cord injury medicine physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
19
Companies
472
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.

Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$333,812 (91.9%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$23,075 (6.4%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$6,226 (1.7%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$37,561
2023
$47,330
2022
$47,016
2021
$62,466
2020
$28,366
2019
$76,365
2018
$64,008

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$29,071
Ipsen Biopharmaceuticals, Inc
$6,509
Pacira Pharmaceuticals Incorporated
$1,299
Merz Pharmaceuticals, LLC
$420
REVANCE THERAPEUTICS, INC.
$263
Top 3 companies account for 98.2% of 2024 payments
All-time payments by company (2018-2024) ›
Ipsen Biopharmaceuticals, Inc
$85,284
Allergan, Inc.
$66,753
Merz North America, Inc.
$62,233
ABBVIE INC.
$50,081
Allergan Inc.
$35,829
AbbVie Inc.
$20,576
US WorldMeds, LLC
$18,028
Ipsen Innovation
$5,735
Merz Pharmaceuticals, LLC
$5,605
Ipsen Biopharm Limited
$4,380
MERZ NORTH AMERICA, INC.
$2,592
Pacira Pharmaceuticals Incorporated
$2,056
Ipsen Pharma SAS
$1,914
MDD US Operations, LLC
$880
Nevro Corp.
$721
REVANCE THERAPEUTICS, INC.
$263
E.R. Squibb & Sons, L.L.C.
$125
Novo Nordisk Inc
$38
Medtronic USA, Inc.
$21
Top 3 companies account for 59.0% of all-time payments
Associated products mentioned in payments ›
APOKYN · BOTOX · BOTOX - NEUROLOGY · DAXI · DAXXIFY · DYSPORT · Dysport · ELIQUIS · Iovera · MYOBLOC · SYNCHROMED · Senza Spinal Cord Stimulation System · XEOMIN · Xadago · Xeomin · Zilretta
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 →

The majority of payments (92%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in spinal cord injury medicine physician and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 0% for spinal cord injury medicine physician in CA.

Looking for a spinal cord injury medicine physician in Paramount?
Compare spinal cord injury medicine physicians in the Paramount area by procedure volume, costs, and industry payment transparency.
Browse spinal cord injury medicine physicians nearby

Geographic Context

Spinal cord injury medicine physicians within 10 mi
13
Per 100K population
0.1
County median income
$87,760
Nearest hospital
KAISER FOUNDATION HOSPITAL - DOWNEY
2.2 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. Ayyoub is a mixed practice specialist, with moderate Medicare volume, with speaking/promotional industry engagement in the top 0% 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. Ayyoub experienced with hospital follow-up visit, moderate complexity?
Based on Medicare claims data, Dr. Ayyoub performed 3,901 hospital follow-up visit, moderate complexity 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. Ayyoub receive payments from pharmaceutical companies?
Yes. Dr. Ayyoub received a total of $363,112 from 19 companies across 472 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. Ayyoub's costs compare to other spinal cord injury medicine physicians in Paramount?
Dr. Ayyoub's average Medicare payment per service is $70. 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. Ayyoub) 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 →
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.

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. Payments from industry are legal and do not indicate wrongdoing. 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 →