Medicare Enrolled
Dr. Mireille Hamparian, MD
Ophthalmology · Glendale, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Speaking/Promotional
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. Hamparian 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. Hamparian
Dr. Mireille Hamparian is an ophthalmology specialist in Glendale, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Hamparian performed 22,756 Medicare services across 12,123 unique beneficiaries.
Between the years covered by Open Payments, Dr. Hamparian received a total of $85,119 from 39 pharmaceutical and/or device companies across 347 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in ophthalmology. 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. Hamparian 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 4% volume in CA
$85,119 industry payments
Medicare Practice Summary
Medicare Utilization ↗22,756
Medicare services
Top 4% in CA for ophthalmology
12,123
Unique beneficiaries
$65
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~1,138 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 |
|---|---|---|---|
| Eye injection (Vabysmo/faricimab) An injection of faricimab-svoa, a medication administered in 0.1 mg doses. |
3,600 | $29 | $58 |
| Retinal photography (fundus photo) This procedure involves taking photographs of the retina, the light-sensitive tissue at the back of the eye. It is used to document the condition of the eye's interior structures. |
2,987 | $32 | $136 |
| Eye drainage system examination An examination of the internal drainage system of the eye to assess how fluid flows and drains from the eye. |
2,741 | $25 | $45 |
| CT scan of cornea A computed tomography scan used to create detailed images of the cornea, the clear front part of the eye. |
2,088 | $33 | $65 |
| 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. |
2,036 | $110 | $180 |
| Microfluid analysis of tears A laboratory test that analyzes tear fluid using microfluidic technology to measure specific biomarkers. This procedure helps evaluate the composition of tears for diagnostic purposes. |
1,782 | $22 | $35 |
| Comprehensive eye exam, established patient A comprehensive examination of the visual system performed for a patient who has previously been seen by the provider. |
1,141 | $112 | $208 |
| Retinal imaging (OCT scan) This procedure involves imaging the retina to visualize its structure. It is used to examine the back of the eye. |
733 | $35 | $76 |
| Visual field test, extended A test that maps your complete field of vision to detect blind spots or peripheral vision loss. Extended testing provides a more detailed assessment than a standard visual field exam. |
732 | $23 | $110 |
| 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. |
583 | $138 | $272 |
| Optic nerve imaging (OCT scan) Imaging of the optic nerve. |
576 | $32 | $75 |
| 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. |
508 | $150 | $250 |
| Corneal topography and eye depth measurement This procedure measures the curvature and depth of the cornea, the clear front surface of the eye. |
413 | $35 | $155 |
| Cataract surgery with lens implant Surgical removal of the clouded natural lens of the eye and replacement with an artificial prosthetic lens to restore vision. |
346 | $424 | $1,075 |
| Eye injection for retinal disease A procedure involving the administration of medication directly into the eye. |
289 | $106 | $191 |
| Tear duct plug insertion A procedure to insert a small plug into the tear duct opening to help retain tears on the eye surface. |
288 | $98 | $251 |
| Slit lamp examination of the eye This procedure uses a specialized microscope to examine the front portion of the eye. |
283 | $36 | $150 |
| Ultrasound scan of cornea to determine thickness An ultrasound procedure used to measure the thickness of the cornea. |
269 | $9 | $30 |
| Bevacizumab injection, 10 mg Administration of a 10 mg dose of bevacizumab medication via injection. |
254 | $57 | $121 |
| 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. |
228 | $79 | $125 |
| New patient office visit, complex (60-74 min) | 162 | $190 | $341 |
| Laser removal of recurring cataract A laser procedure to remove a recurring cataract within the lens capsule. |
80 | $302 | $560 |
| Eye photography Photographic imaging of the interior structures of the eye. |
78 | $22 | $72 |
| Release of scar tissue from conjunctiva A procedure to remove scar tissue from the conjunctiva, the clear tissue covering the white part of the eye and lining the eyelids. |
66 | $567 | $1,055 |
| Incision to improve eye fluid flow A surgical procedure involving an incision to enhance the drainage of fluid within the eye. |
63 | $738 | $1,280 |
| Prolonged office E/M service, first 15 minutes This code is used for additional time spent by a physician beyond the maximum required time of a primary office or outpatient evaluation and management service. It is billed in 15-minute increments based on total time spent on the date of the primary service. |
50 | $28 | $54 |
| Eyelash removal with forceps This procedure involves the manual removal of eyelashes using forceps. It is a mechanical extraction method performed on the eyelid area. |
49 | $20 | $83 |
| Complex cataract removal with lens implant A surgical procedure to remove a cataract from the eye and insert an artificial lens to restore vision. |
45 | $598 | $1,330 |
| Retinal laser treatment for leaking blood vessels This procedure uses a laser to seal leaking blood vessels in the retina. It is performed to prevent vision loss caused by fluid leakage from damaged retinal vessels. |
41 | $299 | $565 |
| Removal of excessive skin and fat of upper eyelid | 32 | $718 | $1,050 |
| Amniotic membrane placement on eye surface This procedure involves placing amniotic membrane on the surface of the eye to promote wound healing. |
31 | $1,275 | $2,521 |
| Laser repair to improve eye fluid flow A laser procedure used to enhance the drainage of fluid within the eye. |
23 | $215 | $570 |
| Eyelid growth removal A procedure to remove a growth from the eyelid. |
22 | $255 | $470 |
| Insertion of probe into nasal tear duct | 21 | $214 | $322 |
| Corneal foreign body removal using slit lamp A procedure to remove a foreign object from the surface of the eye's cornea. The removal is performed using a slit lamp microscope to visualize and extract the object. |
20 | $59 | $120 |
| Imaging of front third of eye Imaging of the front third of the eye. |
18 | $26 | $60 |
| Dilation of eye fluid drainage A procedure to widen the drainage pathways in the eye to help fluid flow out more easily. |
17 | $539 | $1,600 |
| Removal of chronic eyelid growth This procedure involves the surgical removal of a long-standing growth on the eyelid. |
17 | $117 | $215 |
| Removal of corneal growth A procedure to remove an abnormal growth from the cornea, the clear front surface of the eye. |
16 | $371 | $1,145 |
| Comprehensive eye exam, new patient A comprehensive examination of the visual system performed for a new patient. |
15 | $121 | $250 |
| 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. |
13 | $46 | $95 |
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.
1.5% high complexity
34.4% medium
64.1% routine
Industry Payment Transparency
Open Payments through 2024 ↗$85,119
Total received (2018-2024)
Avg $12,160/year across 7 years
Top 5% in CA for ophthalmology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
39
Companies
347
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
$40,479 (47.6%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$36,197 (42.5%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$8,443 (9.9%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$6,628
2023
$3,937
2022
$17,326
2021
$5,206
2020
$24,178
2019
$5,663
2018
$22,181
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Sight Sciences, Inc.
$5,485
Alcon Vision LLC
$354
Bausch & Lomb Americas Inc.
$229
Amgen Inc.
$173
NEW WORLD MEDICAL,INC.
$138
Harrow Eye, LLC
$51
Tarsus Pharmaceuticals, Inc.
$48
Glaukos Corporation
$42
Genentech USA, Inc.
$31
ABBVIE INC.
$30
RxSight Inc
$24
Dompe US, Inc.
$23
Top 3 companies account for 91.5% of 2024 payments
All-time payments by company (2018-2024) ›
AstraZeneca Pharmaceuticals LP
$27,625
Sight Sciences, Inc.
$24,709
Shire North American Group Inc
$16,484
Allergan Inc.
$7,872
Alcon Vision LLC
$1,782
Alcon Laboratories Inc
$786
SANOFI US SERVICES INC.
$700
Novartis Pharmaceuticals Corporation
$626
Bausch & Lomb Americas Inc.
$471
Allergan, Inc.
$424
Bausch & Lomb, a division of Bausch Health US, LLC
$358
ABBVIE INC.
$309
Sun Pharmaceutical Industries Inc.
$308
Lumenis BE inc
$289
Aerie Pharmaceuticals, Inc.
$283
OPTOS, INC.
$210
BIOTISSUE HOLDINGS, INC.
$206
RxSight Inc
$197
Johnson & Johnson Surgical Vision, Inc.
$185
Amgen Inc.
$173
NEW WORLD MEDICAL,INC.
$138
Carl Zeiss Meditec, Inc.
$126
Horizon Therapeutics plc
$115
Oyster Point Pharma, Inc.
$83
Glaukos Corporation
$63
Thea Pharma Inc.
$61
Ivantis, Inc
$58
Kala Pharmaceuticals, Inc.
$53
Harrow Eye, LLC
$51
Tarsus Pharmaceuticals, Inc.
$48
Dompe US, Inc.
$45
TissueTech, Inc.
$45
Regeneron Healthcare Solutions, Inc.
$44
SUN PHARMACEUTICAL INDUSTRIES INC.
$43
Carl Zeiss Meditec AG
$39
Optos, Inc.
$38
Genentech USA, Inc.
$31
BioTissue Holdings, Inc.
$21
Eyevance Pharmaceuticals LLC
$21
Top 3 companies account for 80.9% of all-time payments
Associated products mentioned in payments ›
ACTIVEFOCUS · ALPHAGAN P · AcrySof · AcrySof IQ VIVITY IOL · BIVV020 · BROMSITE · BromSite (bromfenac ophthalmic solution) 0.075% · COMBIGAN · Centurion · Cequa · Clareon · DUREZOL · DURYSTA · ENVISTA · EYLEA · Hydrus Microstent · INVELTYS · IOLMaster 700 · ISTENT TRABECULAR MICRO-BYPASS STENT SYSTEM · IYUZEH · Kahook Dual Blade · LOTEMAX · LOTEMAX GEL · LOTEMAX SM · LUMIGAN · Luxor · M22 · MIEBO · NGENUITY · None Specified · OMNI · OMNI SURGICAL SYSTEM · OMNI Surgical System · OMNI(R) SURGICAL SYSTEM (US) · OXERVATE · P200DTx · PROKERA · PROLENSA · PanOptix · Prokera · RESTASIS · RESTASIS MULTIDOSE · RXSIGHT CONTACT LENS · RXSIGHT INJECTOR HANDPIECE · ReSTOR · Rhopressa · Rocklatan · Simbrinza · TEPEZZA · TRAVATAN Z · TYRVAYA · Tecnis 1-piece IOL · Tecnis Multifocal Family of 1-piece IOLS · Tecnis Symfony IOL · VEVYE · VUITY · VYZULTA · Vabysmo · VisuMax · XDEMVY · XELPROS · XEN GLAUCOMA TREATMENT SYSTEM · XIIDRA · Zerviate · enVista MX60 IOL · iDose · rhopressa · rocklatan
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 (48%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in ophthalmology and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 5% for ophthalmology in CA.
Geographic Context
Ophthalmologists within 10 mi
738
Per 100K population
7.5
County median income
$87,760
Nearest hospital
GLENDALE ADVENTIST MEDICAL CENTER
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. Hamparian is a clinical cardiology specialist, with above-average Medicare volume (top 4% in CA), with speaking/promotional industry engagement in the top 5% 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. Hamparian experienced with eye injection (vabysmo/faricimab)?
Based on Medicare claims data, Dr. Hamparian performed 3,600 eye injection (vabysmo/faricimab) 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. Hamparian receive payments from pharmaceutical companies?
Yes. Dr. Hamparian received a total of $85,119 from 39 companies across 347 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. Hamparian's costs compare to other ophthalmologists in Glendale?
Dr. Hamparian's average Medicare payment per service is $65. 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. Hamparian) 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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