Medicare Enrolled
Dr. Mohsen Hamza, M.D.
Neurology · Los Angeles, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Hamza 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. Hamza
Dr. Mohsen Hamza is a neurology specialist in Los Angeles, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Hamza performed 46,692 Medicare services across 2,074 unique beneficiaries.
Between the years covered by Open Payments, Dr. Hamza received a total of $19,687 from 77 pharmaceutical and/or device companies across 930 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in neurology. 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. Hamza 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 2% volume in CA
$19,687 industry payments
Medicare Practice Summary
Medicare Utilization ↗46,692
Medicare services
Top 2% in CA for neurology
2,074
Unique beneficiaries
$13
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~2,457 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 |
|---|---|---|---|
| Botox injection, per unit An injection of onabotulinumtoxinA, a medication used to temporarily relax muscles or reduce gland activity. The dose is measured in units, with this code representing a single unit administered. |
42,000 | $5 | $12 |
| Electrical stimulation therapy, per 15 minutes Application of electrical stimulation to the body with a therapist present. The service is billed for each 15-minute increment of treatment. |
926 | $10 | $73 |
| 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. |
478 | $100 | $326 |
| Therapeutic massage, per 15 minutes A therapy procedure involving massage techniques. The code covers each 15-minute increment of the service. |
471 | $27 | $73 |
| Ultrasound therapy, each 15 minutes Application of ultrasound waves to tissue for therapeutic purposes. The procedure is billed in 15-minute increments. |
458 | $9 | $41 |
| Electromyography of arm or leg muscles A test that measures the electrical activity in the muscles of the arm or leg using a needle electrode. It helps evaluate the health of muscles and the nerve cells that control them. |
430 | $87 | $193 |
| Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle | 176 | $71 | $187 |
| Chemical nerve block for neck muscles Injection of a chemical agent to paralyze specific muscles on the side of the neck, excluding the voice box. |
160 | $175 | $372 |
| Placement of skin electrodes and measurement of stimulated sites on arms and legs This procedure involves placing skin electrodes and measuring stimulated sites on the arms and legs. |
129 | $323 | $561 |
| Ultrasound of arm and leg arteries A non-invasive imaging test that uses sound waves to examine the blood vessels in the arms and legs. It evaluates blood flow and checks for blockages or other vascular issues. |
127 | $96 | $486 |
| Ultrasound of arm arteries or grafts This procedure uses sound waves to create images of the blood vessels in the arm or any grafts present. It allows for the visualization of blood flow and vessel structure. |
119 | $142 | $603 |
| Ultrasound of leg arteries or grafts An imaging test that uses sound waves to create pictures of the blood vessels in the legs or any surgical grafts present. |
118 | $218 | $758 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in the arm or leg. The test uses sound waves to check blood flow and may include compression and other maneuvers. |
118 | $136 | $611 |
| Auditory brainstem response test A test that measures how the brain responds to sound to help diagnose nervous system disorders. The results are interpreted and reported by a medical professional. |
117 | $73 | $225 |
| Visual evoked potential test A test that measures how quickly electrical signals travel from the eye to the brain in response to visual stimuli. |
113 | $60 | $268 |
| Nerve conduction studies, 13 or more A diagnostic test that measures how well nerves send electrical signals. This code applies when 13 or more individual nerve studies are performed. |
106 | $251 | $772 |
| Awake and drowsy EEG A test that records electrical activity in the brain while the patient is awake and drowsy. |
105 | $343 | $576 |
| Complete ultrasound of brain blood flow An ultrasound test that evaluates blood flow within the brain's blood vessels. It uses sound waves to create images of the vessels and assess circulation. |
99 | $245 | $769 |
| 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. |
87 | $154 | $400 |
| Balance testing with recording A procedure to evaluate balance function by recording the results during testing. |
80 | $95 | $300 |
| Use of electrodes during balance testing Application of electrodes to monitor physiological responses during a balance assessment. |
80 | $10 | $93 |
| Balance and posture test A test to evaluate a patient's balance and posture. This assessment measures stability and body alignment. |
76 | $42 | $325 |
| Vestibular function test with thermal irrigation A test that assesses balance by irrigating both ears with warm and cool fluids to evaluate inner ear function. |
69 | $35 | $75 |
| 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. |
50 | $132 | $442 |
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 ↗$19,687
Total received (2018-2024)
Avg $2,812/year across 7 years
Top 15% in CA for neurology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
77
Companies
930
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
$19,303 (98.1%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$384 (1.9%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$4,180
2023
$3,197
2022
$3,654
2021
$4,252
2020
$1,653
2019
$1,724
2018
$1,026
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$814
HARMONY BIOSCIENCES LLC
$397
SK Life Science, Inc.
$357
Medtronic, Inc.
$265
Amgen Inc.
$247
PFIZER INC.
$225
ARGENX US, INC.
$207
Lilly USA, LLC
$175
UCB, Inc.
$166
Lundbeck LLC
$145
ACADIA Pharmaceuticals Inc
$126
REVANCE THERAPEUTICS, INC.
$95
Merz Pharmaceuticals, LLC
$90
MDD US Operations, LLC
$75
Marinus Pharmaceuticals, Inc.
$71
Mallinckrodt Hospital Products Inc.
$68
Teva Pharmaceuticals USA, Inc.
$67
Harmony Biosciences Llc
$60
Eisai Inc.
$54
Sumitomo Pharma America, Inc.
$54
Neurelis, Inc.
$53
Abbott Laboratories
$50
CSL Behring
$42
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
$38
Takeda Pharmaceuticals U.S.A., Inc.
$34
Corium, LLC
$32
AstraZeneca Pharmaceuticals LP
$31
Biogen, Inc.
$28
Octapharma USA, Inc.
$26
JAZZ PHARMACEUTICALS INC.
$26
MITSUBISHI TANABE PHARMA AMERICA, INC.
$24
Acorda Therapeutics, Inc
$22
BioMarin Pharmaceutical Inc.
$16
Top 3 companies account for 37.5% of 2024 payments
All-time payments by company (2018-2024) ›
ABBVIE INC.
$2,247
AbbVie Inc.
$1,626
SK Life Science, Inc.
$957
US WorldMeds, LLC
$760
UCB, Inc.
$664
Biogen, Inc.
$651
ARGENX US, INC.
$625
Allergan, Inc.
$608
Lilly USA, LLC
$603
GENZYME CORPORATION
$600
MDD US Operations, LLC
$588
Kyowa Kirin, Inc.
$493
Merz Pharmaceuticals, LLC
$445
Takeda Pharmaceuticals U.S.A., Inc.
$402
Allergan Inc.
$402
HARMONY BIOSCIENCES LLC
$397
Horizon Therapeutics plc
$370
Lundbeck LLC
$368
Neurelis, Inc.
$350
Eisai Inc.
$342
PFIZER INC.
$323
EMD Serono, Inc.
$320
Alexion Pharmaceuticals, Inc.
$296
Amneal Pharmaceuticals LLC
$295
CSL Behring
$281
Sumitomo Pharma America, Inc.
$277
Supernus Pharmaceuticals, Inc.
$268
Biohaven Pharmaceuticals, Inc.
$266
Medtronic, Inc.
$265
Amgen Inc.
$247
Merz North America, Inc.
$236
Acorda Therapeutics, Inc
$203
EISAI INC.
$192
ACADIA Pharmaceuticals Inc
$185
MITSUBISHI TANABE PHARMA AMERICA, INC.
$175
Jazz Pharmaceuticals Inc.
$164
Teva Pharmaceuticals USA, Inc.
$156
Mitsubishi Tanabe Pharma America, Inc.
$150
Mallinckrodt Hospital Products Inc.
$144
Corium, LLC
$135
Biohaven Pharmaceutical Holding Company Ltd.
$130
Sunovion Pharmaceuticals Inc.
$119
Catalyst Pharmaceuticals, Inc.
$96
REVANCE THERAPEUTICS, INC.
$95
Avanir Pharmaceuticals, Inc.
$79
AQUESTIVE THERAPEUTICS, INC.
$75
Abbott Laboratories
$73
Celgene Corporation
$73
Marinus Pharmaceuticals, Inc.
$71
Strongbridge US INC.
$64
Harmony Biosciences Llc
$60
JAZZ PHARMACEUTICALS INC.
$48
IDORSIA PHARMACEUTICALS US INC
$48
Electronic Waveform Lab, Inc.
$45
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
$38
AstraZeneca Pharmaceuticals LP
$31
Zyla Life Sciences, Inc.
$31
BANNER LIFE SCIENCES, LLC
$30
Otsuka America Pharmaceutical, Inc.
$28
MERZ NORTH AMERICA, INC.
$26
Octapharma USA, Inc.
$26
SANOFI-AVENTIS U.S. LLC
$25
LivaNova USA, Inc.
$25
E.R. Squibb & Sons, L.L.C.
$25
Banner Life Sciences, LLC
$24
Metacel Pharmaceuticals LLC
$23
Xeris Pharmaceuticals, Inc.
$22
Impax Laboratories, Inc.
$22
IMPEL PHARMACEUTICALS INC.
$22
Sarepta Therapeutics, Inc.
$21
Genentech USA, Inc.
$19
Amylyx Pharmaceuticals, Inc.
$19
Bayer HealthCare Pharmaceuticals Inc.
$17
Merck Sharp & Dohme Corporation
$17
BioMarin Pharmaceutical Inc.
$16
Boston Scientific Corporation
$14
Arbor Pharmaceuticals, Inc.
$13
Top 3 companies account for 24.5% of all-time payments
Associated products mentioned in payments ›
ACTHAR · ADUHELM · AJOVY · AMYVID · ANDEXXA · APOKYN · APTIOM · AUBAGIO · AUSTEDO · Apokyn · Austedo XR · Azstarys · BAFIERTAM · BELSOMRA · BOTOX · BOTOX THERAPEUTIC · Betaseron · Brineura · Briviact · CAPLYTA · COMIRNATY · DAXI · DAXXIFY · EMGALITY · EPIDIOLEX · ETERNA · EXONDYS 51 · FYCOMPA · Fycompa · GAMMAGARD · GENERAL DBS · GOCOVRI · Gocovri · HYQVIA · Hizentra · Horizant · INBRIJA · INFINITY · KEVEYIS · LINZESS · Leqembi · MAVENCLAD · MYOBLOC · Mavenclad · NOURIANZ · NUEDEXTA · NUPLAZID · NURTEC ODT · Neupro · Nourianz · OXTELLAR XR · Ocrevus · Ozobax · PANZYGA · PERCEPT PC BRAINSENSE · QULIPTA · QUVIVIQ · RADICAVA · RELYVRIO · REXULTI · RYTARY · Radicava · Rebif · SKYCLARYS · SOLIRIS · SPRIX · SYMPAZAN · Soliris · TROKENDI XR · TYSABRI · Trudhesa · UBRELVY · ULTOMIRIS · UPLIZNA · VALTOCO · VIBERZI · VNS Therapy SenTiva Model 1000 Generator · VRAYLAR · VUMERITY · VYEPTI · VYVGART · VYVGART HYTRULO · Vimpat · WAKIX · XADAGO · XCOPRI · XEOMIN · XYREM · Xadago · Xeomin · ZEPOSIA · ZTALMY
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 (98%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Neurologists within 10 mi
535
Per 100K population
5.4
County median income
$87,760
Nearest hospital
VA GREATER LOS ANGELES HEALTHCARE SYSTEM
1.1 mi
1.1 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. Hamza is a mixed practice specialist, with above-average Medicare volume (top 2% in CA), with low-engagement industry engagement in the top 15% 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. Hamza experienced with botox injection, per unit?
Based on Medicare claims data, Dr. Hamza performed 42,000 botox injection, per unit 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. Hamza receive payments from pharmaceutical companies?
Yes. Dr. Hamza received a total of $19,687 from 77 companies across 930 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. Hamza's costs compare to other neurologists in Los Angeles?
Dr. Hamza's average Medicare payment per service is $13. 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. Hamza) 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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