Medicare Enrolled
Dr. Marc London, M.D.
Neurology · West Nyack, NY
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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. London 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. London?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. London
Dr. Marc London is a neurology specialist in West Nyack, NY, with 19 years of NPI registration. Based on federal Medicare data, Dr. London performed 1,095 Medicare services across 987 unique beneficiaries.
Between the years covered by Open Payments, Dr. London received a total of $31,181 from 82 pharmaceutical and/or device companies across 1057 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. London 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 26% volume in NY
$31,181 industry payments
Medicare Practice Summary
Medicare Utilization ↗1,095
Medicare services
Top 26% in NY for neurology
987
Unique beneficiaries
$92
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~58 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 |
|---|---|---|---|
| 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. |
267 | $111 | $537 |
| 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. |
174 | $142 | $762 |
| 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. |
129 | $40 | $259 |
| 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. |
115 | $76 | $410 |
| 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. |
113 | $34 | $227 |
| 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. |
56 | $158 | $766 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
55 | $96 | $603 |
| Assessment of emotional or behavioral problems An evaluation to identify and understand emotional or behavioral issues. This process involves reviewing symptoms and behaviors to determine the nature of the concerns. |
53 | $5 | $64 |
| 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. |
48 | $159 | $754 |
| 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. |
36 | $108 | $382 |
| Hospital follow-up visit, low complexity Follow-up hospital visit for an established patient with straightforward or low-level medical decision making. The visit requires at least 25 minutes of time spent on the day of service. |
34 | $47 | $202 |
| Awake and drowsy EEG A test that records electrical activity in the brain while the patient is awake and drowsy. |
15 | $51 | $1,390 |
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 ↗$31,181
Total received (2018-2024)
Avg $4,454/year across 7 years
Top 14% in NY for neurology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
82
Companies
1,057
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
$16,389 (52.6%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$14,792 (47.4%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,879
2023
$2,702
2022
$4,343
2021
$7,184
2020
$8,787
2019
$2,370
2018
$2,916
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$905
UCB, Inc.
$362
Sumitomo Pharma America, Inc.
$187
Lilly USA, LLC
$156
PFIZER INC.
$154
Amneal Pharmaceuticals LLC
$152
SK Life Science, Inc.
$134
Aucta Pharmaceuticals, Inc.
$96
Grifols USA, LLC
$79
Teva Pharmaceuticals USA, Inc.
$78
Kyowa Kirin, Inc.
$77
Eisai Inc.
$69
Lundbeck LLC
$50
Otsuka America Pharmaceutical, Inc.
$49
TG Therapeutics, Inc.
$47
CATALYST PHARMACEUTICALS, INC.
$47
SCILEX PHARMACEUTICALS INC.
$42
Novartis Pharmaceuticals Corporation
$42
Takeda Pharmaceuticals U.S.A., Inc.
$27
Alnylam Pharmaceuticals Inc.
$27
Genentech USA, Inc.
$26
Xeris Pharmaceuticals, Inc.
$24
Medtronic, Inc.
$17
MITSUBISHI TANABE PHARMA AMERICA, INC.
$17
JAZZ PHARMACEUTICALS INC.
$14
Top 3 companies account for 50.5% of 2024 payments
All-time payments by company (2018-2024) ›
Allergan, Inc.
$8,307
AbbVie Inc.
$4,011
ABBVIE INC.
$4,008
Lilly USA, LLC
$904
UCB, Inc.
$757
Novartis Pharmaceuticals Corporation
$712
Kyowa Kirin, Inc.
$711
Amgen Inc.
$649
GENZYME CORPORATION
$555
Supernus Pharmaceuticals, Inc.
$476
PFIZER INC.
$461
EMD Serono, Inc.
$456
SK Life Science, Inc.
$448
Allergan Inc.
$419
Adamas Pharmaceuticals, Inc.
$377
Biogen, Inc.
$359
Teva Pharmaceuticals USA, Inc.
$352
Amneal Pharmaceuticals LLC
$341
Grifols USA, LLC
$339
Sumitomo Pharma America, Inc.
$336
Genentech USA, Inc.
$318
Celgene Corporation
$302
ACADIA Pharmaceuticals Inc
$295
Sunovion Pharmaceuticals Inc.
$288
Mallinckrodt LLC
$279
Biohaven Pharmaceuticals, Inc.
$274
Eisai Inc.
$269
Lundbeck LLC
$268
Alexion Pharmaceuticals, Inc.
$246
EISAI INC.
$236
Upsher-Smith Laboratories LLC
$225
Assertio Therapeutics, Inc.
$190
Abbott Laboratories
$173
Currax Pharmaceuticals LLC
$161
Biohaven Pharmaceutical Holding Company Ltd.
$160
Avanir Pharmaceuticals, Inc.
$145
CSL Behring
$133
Neurocrine Biosciences, Inc.
$131
Janssen Pharmaceuticals, Inc
$122
Almatica Pharma LLC
$118
UPSHER-SMITH LABORATORIES LLC
$99
Aucta Pharmaceuticals, Inc.
$96
Neurelis, Inc.
$90
Vertical Pharmaceuticals, LLC
$88
Welch Allyn
$79
Otsuka America Pharmaceutical, Inc.
$77
MITSUBISHI TANABE PHARMA AMERICA, INC.
$68
Mallinckrodt Hospital Products Inc.
$66
Acorda Therapeutics, Inc
$65
Xeris Pharmaceuticals, Inc.
$64
Medtronic USA, Inc.
$62
SCILEX PHARMACEUTICALS INC.
$62
Medtronic, Inc.
$59
Boston Scientific Corporation
$55
ARBOR PHARMACEUTICALS, INC.
$53
Alnylam Pharmaceuticals Inc.
$52
IMPEL PHARMACEUTICALS INC.
$48
TG Therapeutics, Inc.
$47
CATALYST PHARMACEUTICALS, INC.
$47
Promius Pharma LLC
$44
Azurity Pharmaceuticals, Inc.
$44
Aprecia Pharmaceuticals, LLC
$43
Arbor Pharmaceuticals, Inc.
$42
ASSERTIO THERAPEUTICS, Inc.
$41
Catalyst Pharmaceuticals, Inc.
$39
Exeltis, USA Inc.
$31
Corium, LLC
$27
Takeda Pharmaceuticals U.S.A., Inc.
$27
PORTOLA PHARMACEUTICALS, INC.
$27
Axsome Therapeutics, Inc.
$27
Impax Laboratories, Inc.
$24
PORTOLA PHARMACEUTICALS, LLC
$22
Mallinckrodt Enterprises LLC
$18
AbbVie, Inc.
$17
Merz North America, Inc.
$17
Greenwich Biosciences, Inc.
$16
Bausch Health US, LLC
$15
Bayer HealthCare Pharmaceuticals Inc.
$15
JAZZ PHARMACEUTICALS INC.
$14
Avion Pharmaceuticals
$14
Egalet US Inc
$13
Validus Pharmaceuticals LLC
$12
Top 3 companies account for 52.4% of all-time payments
Associated products mentioned in payments ›
ACTHAR · ACTIVA · ADLARITY · ADUHELM · AFINITOR · AIMOVIG · AJOVY · AMPYRA · AMYVID · ANDEXXA · APTIOM · AUBAGIO · AUSTEDO · Aimovig · Austedo XR · BOTOX · BOTOX THERAPEUTIC · BRIUMVI · Betaseron · Briviact · CAMBIA · COMIRNATY · CONTRAVE · CREXONT · Cambia · Duopa · EMGALITY · EPIDIOLEX · Edarbi · Epidiolex · Equetro · FABRAZYME · FYCOMPA · Fycompa · GILENYA · GIVLAARI · GOCOVRI · GRALISE · GVOKE PFS · Gamunex-C · General - Pain Management · Gralise · HYQVIA · Hizentra · Horizant · INBRIJA · INFINITY · INGREZZA · Infinity DBS Pulse Generators · KESIMPTA · KEVEYIS · KISUNLA · LEMTRADA · LYRICA · Leqembi · MAVENCLAD · MAYZENT · MIGRANAL · Mavenclad · Motpoly XR · NAMZARIC · NAPRELAN · NORTHERA · NOURIANZ · NUEDEXTA · NUPLAZID · NURTEC ODT · Nayzilam · Nourianz · Nuedexta · OCREVUS · OCTAGAM IMMUNE GLOBULIN (HUMAN) · ONGENTYS · ONPATTRO · ONZETRA XSAIL · OSMOLEX ER · OXTELLAR XR · Ocrevus · PANZYGA · PAXLOVID · PERCEPT PC BRAINSENSE · PURIFIED CORTROPHIN GEL · Percept · QUDEXY XR TOPIRAMATE EXTENDED RELEASE CAPSULES · QUDEXY XR Topiramate Extended Release Capsules · QULIPTA · RADICAVA · REXULTI · REYVOW · RYTARY · Rebif · Rystiggo · SOLIRIS · SPRIX · Spritam · Sunosi · TECFIDERA · TOPIRAMATE Extended Release Capsules · TOSYMRA · TOSYMRA SUMATRIPTAN NASAL SPRAY · TROKENDI XR · TYSABRI · Trudhesa · UBRELVY · ULTOMIRIS · VALTOCO · VUMERITY · VYEPTI · XCOPRI · XEOMIN · ZEMBRACE SYMTOUCH · ZEPOSIA · ZOMIG · ZTLido · Zembrace
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 (53%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Neurologists within 10 mi
840
Per 100K population
247.8
County median income
$110,631
Nearest hospital
NYACK HOSPITAL
2.5 mi
2.5 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. London is a clinical cardiology specialist, with above-average Medicare volume (top 26% in NY), with low-engagement industry engagement in the top 14% of NY 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. London experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. London performed 267 office visit, established patient (30-39 min) 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. London receive payments from pharmaceutical companies?
Yes. Dr. London received a total of $31,181 from 82 companies across 1,057 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. London's costs compare to other neurologists in West Nyack?
Dr. London's average Medicare payment per service is $92. 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. London) 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 →
Explore related providers
Specialty guide
Understanding Neurology
Common procedures, typical costs, and what industry payments mean in neurology.
Same specialty & city
Neurologists in West Nyack
Browse neurologists in West Nyack ranked by procedure volume and transparency data.
Highest volume
Top Neurologists in NY
Neurologists ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Neurologists in NY
Which NY neurologists receive the most from drug and device companies.
By company
Allergan, Inc. Payments to Doctors
See all physicians who received payments from Allergan, Inc.
By company
AbbVie Inc. Payments to Doctors
See all physicians who received payments from AbbVie Inc.
By company
ABBVIE INC. Payments to Doctors
See all physicians who received payments from ABBVIE INC.
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