Medicare Enrolled
Dr. Lawrence Northorn, D.O.
Family Medicine · East Islip, 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. Northorn 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. Northorn
Dr. Lawrence Northorn is a family medicine specialist in East Islip, NY, with 20 years of NPI registration. Based on federal Medicare data, Dr. Northorn performed 6,854 Medicare services across 4,539 unique beneficiaries.
Between the years covered by Open Payments, Dr. Northorn received a total of $7,752 from 54 pharmaceutical and/or device companies across 404 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in family medicine. 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. Northorn 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 2% volume in NY
$7,752 industry payments
Medicare Practice Summary
Medicare Utilization ↗6,854
Medicare services
Top 2% in NY for family medicine
4,539
Unique beneficiaries
$35
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~343 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 (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. |
912 | $78 | $149 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
594 | $8 | $12 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
531 | $8 | $25 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
469 | $10 | $39 |
| Thyroxine (T4) level test A blood test that measures the total amount of thyroxine, a thyroid hormone, in your body. |
449 | $7 | $50 |
| Thyroid hormone evaluation A blood test to measure the levels of thyroid hormones in the body. This evaluation helps assess how well the thyroid gland is functioning. |
449 | $6 | $20 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
448 | $16 | $90 |
| Total T3 thyroid hormone test A blood test that measures the total amount of triiodothyronine (T3) hormone in your body. T3 is a thyroid hormone that helps regulate metabolism and energy levels. |
448 | $14 | $50 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
439 | $13 | $65 |
| 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. |
366 | $146 | $278 |
| Influenza virus detection test A laboratory test that uses an immunoassay technique to detect the presence of the influenza virus through direct visual observation. |
234 | $16 | $25 |
| Electrocardiogram (EKG), 12-lead A standard heart rhythm test using at least 12 leads to record electrical activity. A healthcare provider interprets the results and provides a written report. |
214 | $11 | $55 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
196 | $3 | $15 |
| SARS-CoV-2 immunoassay test A laboratory test using immunoassay techniques to detect the presence of severe acute respiratory syndrome coronavirus. |
182 | $35 | $130 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
152 | $151 | $185 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
143 | $10 | $52 |
| PSA test (prostate cancer screening) | 139 | $18 | $95 |
| 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. |
115 | $93 | $195 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
78 | $36 | $50 |
| Flu vaccine, high-dose High-dose seasonal influenza vaccine for adults aged 65 and older. Contains four times the antigen of standard-dose flu vaccines (60 mcg per strain), split-virus formulation, preservative-free, single-dose syringe. |
59 | $72 | $125 |
| Strep A rapid test A rapid test to detect Group A Streptococcus bacteria using an immunoassay method with direct visual observation. |
47 | $16 | $25 |
| Prothrombin time test (blood clotting) A laboratory test that measures how long it takes for blood to clot. This procedure evaluates the body's coagulation process. |
44 | $4 | $40 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
29 | $166 | $750 |
| Urine microalbumin test A laboratory test that measures the amount of a specific protein called microalbumin in a urine sample. This analysis helps assess kidney function. |
23 | $6 | $25 |
| Creatinine test (kidney function) A blood test that measures the amount of creatinine to assess kidney function or detect muscle injury. |
23 | $5 | $25 |
| Nerve conduction study, 9-10 studies A diagnostic test that measures how well nerves send electrical signals. It involves performing 9 to 10 separate nerve conduction studies to evaluate nerve function. |
18 | $188 | $1,000 |
| 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. |
15 | $187 | $500 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
13 | $8 | $30 |
| Quadrivalent influenza vaccine, cell-culture derived A flu shot containing four strains of influenza virus, produced using cell culture technology rather than eggs. This formulation is free from preservatives and antibiotics. |
13 | $33 | $75 |
| 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. |
12 | $172 | $500 |
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.
0.4% high complexity
0.4% medium
99.2% routine
Industry Payment Transparency
Open Payments through 2024 ↗$7,752
Total received (2018-2024)
Avg $1,107/year across 7 years
Top 8% in NY for family medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
54
Companies
404
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
$7,737 (99.8%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$16 (0.2%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,297
2023
$1,041
2022
$1,384
2021
$1,143
2020
$902
2019
$906
2018
$1,080
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
GlaxoSmithKline, LLC.
$257
Novo Nordisk Inc
$219
Lundbeck LLC
$183
Takeda Pharmaceuticals U.S.A., Inc.
$79
AstraZeneca Pharmaceuticals LP
$78
Lilly USA, LLC
$60
Amgen Inc.
$51
Exact Sciences Corporation
$51
Inspire Medical Systems, Inc.
$46
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$44
GENZYME CORPORATION
$43
Daiichi Sankyo Inc.
$38
Regeneron Healthcare Solutions, Inc.
$33
ABBVIE INC.
$27
Merck Sharp & Dohme LLC
$24
Renalytix AI, Inc.
$23
SANOFI-AVENTIS U.S. LLC
$21
Otsuka America Pharmaceutical, Inc.
$19
Top 3 companies account for 50.8% of 2024 payments
All-time payments by company (2018-2024) ›
Novo Nordisk Inc
$1,123
GlaxoSmithKline, LLC.
$991
Amarin Pharma Inc.
$381
ABBVIE INC.
$379
Lundbeck LLC
$344
Daiichi Sankyo Inc.
$322
Takeda Pharmaceuticals U.S.A., Inc.
$295
Lilly USA, LLC
$291
PFIZER INC.
$271
Amgen Inc.
$253
Boehringer Ingelheim Pharmaceuticals, Inc.
$235
AbbVie Inc.
$215
Merck Sharp & Dohme Corporation
$213
AstraZeneca Pharmaceuticals LP
$211
Medtronic Vascular, Inc.
$156
NuVasive, Inc.
$150
Esperion Therapeutics, Inc.
$145
Teva Pharmaceuticals USA, Inc.
$130
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$99
BOSTON SCIENTIFIC CORPORATION
$97
Allergan, Inc.
$90
Kowa Pharmaceuticals America, Inc.
$89
Currax Pharmaceuticals LLC
$88
Genentech USA, Inc.
$86
Abbott Laboratories
$83
Janssen Pharmaceuticals, Inc
$77
Nabriva Therapeutics, plc
$65
Bausch Health US, LLC
$60
GENZYME CORPORATION
$58
ARBOR PHARMACEUTICALS, INC.
$57
Hikma Pharmaceuticals USA
$54
Exact Sciences Corporation
$51
AbbVie, Inc.
$48
Inspire Medical Systems, Inc.
$46
Boston Scientific Corporation
$46
Merck Sharp & Dohme LLC
$40
Horizon Therapeutics plc
$37
Regeneron Healthcare Solutions, Inc.
$33
EISAI INC.
$33
Nalpropion Pharmaceuticals LLC
$29
Novartis Pharmaceuticals Corporation
$27
Allergan Inc.
$27
IDORSIA PHARMACEUTICALS US INC
$25
Biohaven Pharmaceutical Holding Company Ltd.
$25
Renalytix AI, Inc.
$23
SANOFI-AVENTIS U.S. LLC
$21
Neurelis, Inc.
$20
Medtronic, Inc.
$19
Otsuka America Pharmaceutical, Inc.
$19
Althera Pharmaceuticals LLC
$17
Intercept Pharmaceuticals, Inc.
$16
NESTLE HEALTHCARE NUTRITION INC.
$15
Arbor Pharmaceuticals, Inc.
$13
Medtronic MiniMed, Inc.
$12
Top 3 companies account for 32.2% of all-time payments
Associated products mentioned in payments ›
ACTIMMUNE · ADVAIR · AIRSUPRA · AJOVY · APLENZIN · AREXVY · Aimovig · AirDuo Digihaler · Amitiza · BELSOMRA · BREZTRI · Belviq · CHANTIX · COHERE · CONTRAVE · Cologuard Collection Kit · CoreValve Evolut · DIFICID · DUPIXENT · ELIQUIS · EMGALITY · ENTRESTO · Edarbi · Edarbyclor · FARXIGA · FASENRA · FreeStyle Libre 2 · GARDASIL · GARDASIL 9 · GENERAL PAIN MANAGEMENT · General - Pain Management · INJECTAFER · INSPIRE · ISENTRESS · JANUVIA · JARDIANCE · KIDNEYINTELX BLOOD COLLECTION CONVENIENCE KIT · LINZESS · LYRICA · Livalo · MINIMED 770G · MOUNJARO · Mavyret · Mitigare · Mitra Clip system · MitraClip System · NEXLETOL · NURTEC ODT · OCALIVA · OFEV · Otezla · Ozempic · PENNSAID · PNEUMOVAX 23 · POMPE - DISEASE · PRADAXA · PREMARIN · PREVNAR - 13 · PREVNAR 13 · PREVNAR 20 · Proclaim Family of SCS IPGs · Prolia · QULIPTA · QUVIVIQ · REXULTI · Repatha · Roszet · Ryaltris · Rybelsus · SHINGRIX · SIVEXTRO · STIOLTO RESPIMAT · SYMBICORT · SYNTHROID · Saxenda · Sivextro · Synthroid · TRADJENTA · TRELEGY ELLIPTA · TRINTELLIX · TRULICITY · TZIELD · Tresiba · Trintellix · UBRELVY · VALTOCO · VRAYLAR · VYEPTI · Vascepa · Wegovy · XARELTO · XIFAXAN · Xenleta · Xofluza · ZENPEP · iPro2
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 (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 8% for family medicine in NY.
Geographic Context
Family medicine physicians within 10 mi
700
Per 100K population
45.9
County median income
$128,329
Nearest hospital
NS/LIJ HS SOUTHSIDE HOSPITAL
3.3 mi
3.3 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. Northorn is a clinical cardiology specialist, with above-average Medicare volume (top 2% in NY), with low-engagement industry engagement in the top 8% of NY 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. Northorn experienced with office visit, established patient (20-29 min)?
Based on Medicare claims data, Dr. Northorn performed 912 office visit, established patient (20-29 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. Northorn receive payments from pharmaceutical companies?
Yes. Dr. Northorn received a total of $7,752 from 54 companies across 404 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. Northorn's costs compare to other family medicine physicians in East Islip?
Dr. Northorn's average Medicare payment per service is $35. 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. Northorn) 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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