Medicare Enrolled
Dr. Mikayel Grigoryan, M.D.
Neurology · 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. Grigoryan 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. Grigoryan
Dr. Mikayel Grigoryan is a neurology specialist in Glendale, CA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Grigoryan performed 703 Medicare services across 553 unique beneficiaries.
Between the years covered by Open Payments, Dr. Grigoryan received a total of $125,419 from 65 pharmaceutical and/or device companies across 637 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in neurology. 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. Grigoryan 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.
✓ 18 years in practice
▲ Top 38% volume in CA
$125,419 industry payments
Medicare Practice Summary
Medicare Utilization ↗703
Medicare services
Top 38% in CA for neurology
553
Unique beneficiaries
$148
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~39 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, 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. |
179 | $99 | $400 |
| 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. |
121 | $108 | $400 |
| 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. |
112 | $145 | $700 |
| 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. |
63 | $176 | $700 |
| 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. |
53 | $137 | $450 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
44 | $10 | $50 |
| Intracranial artery catheter insertion A radiologist inserts a tube into an artery in the brain for diagnostic or treatment purposes. |
31 | $270 | $1,200 |
| Brain artery catheterization A tube is inserted into an artery in the brain for diagnosis or treatment, with review by a radiologist. |
31 | $338 | $1,200 |
| Neck artery catheter insertion with radiology review A tube is inserted into an artery in the neck for diagnostic or treatment purposes. A radiologist reviews the procedure. |
21 | $298 | $1,200 |
| 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. |
19 | $74 | $305 |
| Chest artery catheter insertion with radiology review A tube is inserted into an artery in the chest for diagnostic or treatment purposes. A radiologist reviews the procedure. |
17 | $214 | $1,000 |
| Head artery clot removal and dissolution A procedure to remove a blood clot from an artery in the head and inject medication to dissolve remaining clots, guided by fluoroscopy. |
12 | $683 | $2,700 |
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.
14.2% high complexity
0.0% medium
85.8% routine
Industry Payment Transparency
Open Payments through 2024 ↗$125,419
Total received (2018-2024)
Avg $17,917/year across 7 years
Top 5% in CA for neurology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
65
Companies
637
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
$69,794 (55.6%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$31,966 (25.5%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$23,659 (18.9%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$6,515
2023
$25,681
2022
$14,034
2021
$11,560
2020
$8,824
2019
$28,971
2018
$29,834
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Penumbra, Inc.
$1,500
Imperative Care, Inc
$1,483
Abbott Laboratories
$1,283
Stryker Corporation
$1,157
MicroVention, Inc.
$376
AstraZeneca Pharmaceuticals LP
$333
Eisai Inc.
$42
Neurelis, Inc.
$34
Alexion Pharmaceuticals, Inc.
$33
Lilly USA, LLC
$32
SK Life Science, Inc.
$30
PFIZER INC.
$29
Genentech USA, Inc.
$28
Amneal Pharmaceuticals LLC
$27
CSL Behring
$27
Amgen Inc.
$26
Medtronic, Inc.
$21
ABBVIE INC.
$20
Novo Nordisk Inc
$18
Novartis Pharmaceuticals Corporation
$16
Top 3 companies account for 65.5% of 2024 payments
All-time payments by company (2018-2024) ›
Penumbra, Inc.
$41,210
Genentech USA, Inc.
$27,523
MicroVention, Inc.
$21,948
AstraZeneca Pharmaceuticals LP
$11,821
Stryker Corporation
$6,417
Imperative Care, Inc
$3,413
DePuy Synthes Sales Inc.
$2,889
Abbott Laboratories
$1,714
Medtronic, Inc.
$998
Medtronic USA, Inc.
$922
Janssen Pharmaceuticals, Inc
$570
PORTOLA PHARMACEUTICALS, INC.
$476
Viz.ai, Inc.
$460
SK Life Science, Inc.
$419
Chiesi USA, Inc.
$409
Balt USA, LLC
$261
Alexion Pharmaceuticals, Inc.
$254
Amgen Inc.
$247
Scientia Vascular
$240
Novartis Pharmaceuticals Corporation
$219
Boston Scientific Corporation
$197
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$190
Janssen Scientific Affairs, LLC
$183
Microtransponder, Inc.
$177
ABBVIE INC.
$153
Imperative Care, INc
$150
Novo Nordisk Inc
$140
Medical Device Business Services, Inc.
$137
Medtronic Vascular, Inc.
$130
Horizon Therapeutics plc
$129
Genentech, Inc.
$126
PFIZER INC.
$105
AbbVie Inc.
$97
Teva Pharmaceuticals USA, Inc.
$86
Biogen, Inc.
$80
PORTOLA PHARMACEUTICALS, LLC
$75
UCB, Inc.
$70
CSL Behring
$62
Kyowa Kirin, Inc.
$60
Eisai Inc.
$54
MDD US Operations, LLC
$41
CHIESI USA, INC.
$39
Neurelis, Inc.
$34
Lilly USA, LLC
$32
GENZYME CORPORATION
$30
Celgene Corporation
$28
Integra LifeSciences Corporation
$27
Amneal Pharmaceuticals LLC
$27
Teleflex LLC
$26
LivaNova USA, Inc.
$24
Acorda Therapeutics, Inc
$24
Terumo Medical Corporation
$24
Takeda Pharmaceuticals U.S.A., Inc.
$24
ACADIA Pharmaceuticals Inc
$23
Avanir Pharmaceuticals, Inc.
$23
Adamas Pharmaceuticals, Inc.
$22
Neural Analytics, Inc.
$21
Akcea Therapeutics, Inc.
$20
E.R. Squibb & Sons, L.L.C.
$20
BOSTON SCIENTIFIC CORPORATION
$20
Biohaven Pharmaceuticals, Inc.
$19
ARGENX US, INC.
$18
Biohaven Pharmaceutical Holding Company Ltd.
$14
B. Braun Interventional Systems Inc.
$14
GE HEALTHCARE
$12
Top 3 companies account for 72.3% of all-time payments
Associated products mentioned in payments ›
103CM · 3D Revascularization · ABSOLUTE PRO · ACCULINK · ACE · ACTIVA · ADUHELM · AIMOVIG · AMPLATZER · AMPLATZER Occluders · AMPLATZER PICCOLO · ANDEXXA · APOKYN · ARMADA · ASEPT CATHETER AND TUBING FOR DRAINAGE · AUSTEDO · AXS INFINITY LS · AXS VECTA · AXS VECTA 71 · Activase · Aimovig · Andexxa · Austedo XR · Axium · BOTOX · BREZTRI · BRILINTA · Ballast 088 Long Sheath · Benchmark · CARDENE · CATALYST · CEREPAK UNIFORM · CHAPERON GUIDING CATHETER · CLEVIPREX · CLEVIPREX 50MG/100ML · CODMAN CERTAS · CREXONT · Cerenovus Enterprise · Confirm Rx · CoreValve Evolut · DIAMONDBACK PERIPHERAL · DRAGONFLY OPSTAR · Dragonfly OCT · ELIQUIS · EMBOGUARD · EMBOSHIELD NAV6 · EMBOTRAP · EMBOTRAP II Revascularization Device · ENTRESTO · ENVOY · ESPRIT · EVOLVE · Embotrap · FLOWGATE · FRED · Fycompa · GALAXY · GENERAL PAIN MANAGEMENT · GOCOVRI · Galaxy G3 · HEARTRAIL · Hizentra · INBRIJA · Imperative Care Zoom · Jet 7 · KESIMPTA · KISUNLA · Kcentra · LEQVIO · LINQ II · Leqembi · LifeVest · Lucid Robotic System · MANTA · NEUROFORM ATLAS · NEUROFORM EZ · NEW PRODUCT DEVELOPMENT · NONE · NOURIANZ · NUEDEXTA · NUPLAZID · NURTEC ODT · Navien · Nourianz · OCTAGAM IMMUNE GLOBULIN (HUMAN) · Ocrevus · PULSERIDER · Penumbra Coil 400 · Penumbra Jet 7 · Penumbra SMART Coil · Penumbra System · Pipeline · RED 72 · RYBELSUS · React · Reveal LINQ · SOFIA · SOFIA 6F-131CM STR · SPECTRA GALAXY G3 MIN · SPINEJACK · SPINRAZA · STENT · SUPERA · SURPASS · SURPASS EVOLVE · SYNCHRO SELECT · SYNERGY · SYPHONTRAK · Smart Coil · Sofia 6F-125cm STR · Soliris · Solitaire · Spectra · TARGET · TEGSEDI · TNKase · TRAXCESS GUIDEWIRE · TREVO · TRINTELLIX · TRUFILL · UBRELVY · ULTOMIRIS · UPLIZNA · VALTOCO · VIATRAC · VNS Therapy SenTiva Model 1000 Generator · VRAYLAR · VUMERITY · VYVGART · Vimpat · Viz.AI LVO · WATCHMAN · WEB · WEB ANEURYSM EMBOLIZATION SYSTEM · WEB Aneurysm Embolization System · WINGSPAN · XACT · XADAGO · XARELTO · XCOPRI · ZEPOSIA · ZOOM 88-T LARGE DISTAL PLATFORM · ZOOM RDL RADIAL ACCESS SYSTEM · ZOOM REPERFUSION CATHETER
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 (56%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in neurology and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 5% for neurology in CA.
Geographic Context
Neurologists within 10 mi
535
Per 100K population
5.4
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. Grigoryan is a clinical cardiology specialist, with moderate Medicare volume, with speaking/promotional industry engagement in the top 5% of CA peers, with 18 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. Grigoryan experienced with hospital follow-up visit, high complexity?
Based on Medicare claims data, Dr. Grigoryan performed 179 hospital follow-up visit, high 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. Grigoryan receive payments from pharmaceutical companies?
Yes. Dr. Grigoryan received a total of $125,419 from 65 companies across 637 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. Grigoryan's costs compare to other neurologists in Glendale?
Dr. Grigoryan's average Medicare payment per service is $148. 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. Grigoryan) 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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