Medicare Enrolled
Dr. Marc Sandberg, MD
Endocrinology · Flemington, NJ
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. Sandberg 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. Sandberg
Dr. Marc Sandberg is an endocrinology specialist in Flemington, NJ, with 20 years of NPI registration. Based on federal Medicare data, Dr. Sandberg performed 1,346 Medicare services across 863 unique beneficiaries.
Between the years covered by Open Payments, Dr. Sandberg received a total of $681,497 from 77 pharmaceutical and/or device companies across 1740 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in endocrinology. 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. Sandberg 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 37% volume in NJ
$681,497 industry payments
Medicare Practice Summary
Medicare Utilization ↗1,346
Medicare services
Top 37% in NJ for endocrinology
863
Unique beneficiaries
$66
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~67 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. |
702 | $101 | $252 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
274 | $10 | $52 |
| Continuous glucose monitoring with interpretation This procedure involves monitoring blood sugar levels in tissue fluid using a sensor placed under the skin, along with the interpretation and reporting of the results. |
174 | $29 | $154 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
73 | $8 | $34 |
| 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. |
36 | $123 | $419 |
| Blood glucose test using hand-held instrument A test that measures the level of sugar in the blood using a portable device. The result helps monitor blood glucose levels. |
28 | $3 | $16 |
| 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. |
23 | $71 | $153 |
| 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. |
20 | $141 | $399 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
16 | $34 | $36 |
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 ↗$681,497
Total received (2018-2024)
Avg $97,357/year across 7 years
Top 1% in NJ for endocrinology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
77
Companies
1,740
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
$665,280 (97.6%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$8,562 (1.3%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$7,655 (1.1%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$84,177
2023
$70,378
2022
$73,774
2021
$84,676
2020
$83,353
2019
$123,159
2018
$161,980
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Lilly USA, LLC
$39,986
SANOFI-AVENTIS U.S. LLC
$27,877
Novo Nordisk Inc
$7,185
Corcept Therapeutics
$5,903
Boehringer Ingelheim Pharmaceuticals, Inc.
$1,797
Astellas Pharma US Inc
$153
Radius Health, Inc.
$120
Amgen Inc.
$107
Amneal Pharmaceuticals LLC
$100
Antares Pharma, Inc.
$92
Abbott Laboratories
$90
Mannkind Corporation
$81
Tandem Diabetes Care, Inc.
$76
RECORDATI_RARE_DISEASES_INC.
$66
Medtronic, Inc.
$64
PFIZER INC.
$58
Insulet Corporation
$49
Xeris Pharmaceuticals, Inc.
$45
Bayer Healthcare Pharmaceuticals Inc.
$44
Dexcom, Inc.
$40
Acella Pharmaceuticals, LLC
$34
ABBVIE INC.
$31
Verity Pharmaceuticals Inc.
$24
CeQur Corporation
$24
Alexion Pharmaceuticals, Inc.
$19
IBSA Pharma Inc.
$17
Novartis Pharmaceuticals Corporation
$17
Tolmar, Inc.
$17
Amphastar Pharmaceuticals, Inc.
$16
Neurocrine Biosciences, Inc.
$16
Madrigal Pharmaceuticals
$15
Currax Pharmaceuticals LLC
$14
Top 3 companies account for 89.2% of 2024 payments
All-time payments by company (2018-2024) ›
Lilly USA, LLC
$200,272
SANOFI-AVENTIS U.S. LLC
$169,189
Novo Nordisk Inc
$168,390
Valeritas, Inc.
$37,437
AstraZeneca Pharmaceuticals LP
$27,159
Boehringer Ingelheim Pharmaceuticals, Inc.
$21,840
Corcept Therapeutics
$15,373
Janssen Pharmaceuticals, Inc
$11,409
Intuity Medical Inc
$10,320
AbbVie Inc.
$4,349
Zealand Pharma US, Inc.
$3,862
AbbVie, Inc.
$3,689
Mannkind Corporation
$1,217
Amgen Inc.
$595
Amneal Pharmaceuticals LLC
$515
Antares Pharma, Inc.
$461
PFIZER INC.
$328
Insulet Corporation
$319
Dexcom, Inc.
$310
MannKind Corporation
$306
Tandem Diabetes Care, Inc.
$268
Abbott Laboratories
$240
Medtronic MiniMed, Inc.
$226
Amarin Pharma Inc.
$216
Radius Health, Inc.
$182
Xeris Pharmaceuticals, Inc.
$171
Merck Sharp & Dohme Corporation
$167
RECORDATI_RARE_DISEASES_INC.
$157
Astellas Pharma US Inc
$153
Medtronic, Inc.
$128
Embecta Corp.
$120
Senseonics, Incorporated
$111
Currax Pharmaceuticals LLC
$103
Acella Pharmaceuticals, LLC
$90
Shire North American Group Inc
$85
Gemini Laboratories, LLC
$80
IBSA Pharma Inc.
$80
Kowa Pharmaceuticals America, Inc.
$78
CeQur Corporation
$72
LifeScan, Inc.
$72
Strongbridge US INC.
$67
Bayer HealthCare Pharmaceuticals Inc.
$64
Companion Medical, Inc.
$62
Bayer Healthcare Pharmaceuticals Inc.
$61
Esperion Therapeutics, Inc.
$59
VIVUS, Inc.
$58
Horizon Therapeutics plc
$58
Clarus Therapeutics Inc.
$58
Becton, Dickinson and Company
$57
ABBVIE INC.
$55
DEXCOM, INC.
$55
Regeneron Healthcare Solutions, Inc.
$55
Novartis Pharmaceuticals Corporation
$54
Kyowa Kirin, Inc.
$50
Tolmar, Inc.
$48
Ultragenyx Pharmaceutical Inc.
$47
Amryt Pharma Holdings Ltd
$45
Alexion Pharmaceuticals, Inc.
$45
Eisai Inc.
$39
TOPCON HEALTHCARE SOLUTIONS, INC.
$27
EISAI INC.
$25
Aytu BioScience, Inc
$25
Verity Pharmaceuticals Inc.
$24
Supernus Pharmaceuticals, Inc.
$22
Acerus Pharmaceuticals Corporation
$18
EUSA Pharma (US) LLC
$17
Amphastar Pharmaceuticals, Inc.
$16
Neurocrine Biosciences, Inc.
$16
LIFESCAN, INC.
$15
Nalpropion Pharmaceuticals LLC
$15
Sanofi Pasteur Inc.
$15
Madrigal Pharmaceuticals
$15
SANOFI PASTEUR INC.
$14
Ipsen Biopharmaceuticals, Inc
$14
Takeda Pharmaceuticals U.S.A., Inc.
$13
Azurity Pharmaceuticals, Inc.
$13
Aytu Bioscience, Inc
$13
Top 3 companies account for 78.9% of all-time payments
Associated products mentioned in payments ›
AFREZZA · Adthyza · BAQSIMI · BD Nano 2nd Gen Pen Needle · BD Ultra-Fine · BYDUREON · Belviq · CONTRAVE · CeQur Simplicity · Crysvita · DEXCOM CGM · DEXCOM G6 CGM SYSTEM · DEXCOM G6 TRANSMITTER · Dexcom CGM · Dexcom G6 Transmitter · EVENITY · Eversense · FARXIGA · FIASP · FLUZONE HIGH-DOSE · FLUZONE QUADRIVALENT · FORTEO · FREESTYLE LIBRE · FreeStyle Libre · FreeStyle Libre Pro · GLYXAMBI · GVOKE HYPOPEN · GVOKE PFS · Guardian Connect · HARMONY · HUMULIN · INPEN SMART INSULIN DELIVERY SYSTEM · INTELLIS ADAPTIVESTIM · INVOKANA · ISTURISA · InPen · JANUVIA · JARDIANCE · JATENZO · KEVEYIS · Kerendia · Korlym · LEQVIO · LICART · LYUMJEV · Levemir · Livalo · MACRILEN · MINIMED 780G · MOUNJARO · MYCAPSSA · Macrilen · Minimed 670G System · NATPARA · NATPARA (PARATHYROID HORMONE) · NEXLETOL · NOCDURNA · NP Thyroid 60 · Natesto · OT Verio Flex Starter Kit · OT Verio Reflect "One Touch Meter and Strips" · OTREXUP · Omnipod · OneTouch · OneTouch Verio Reflect · Otrexup · Ozempic · PRALUENT · PRALUENT ALIROCUMAB INJECTION · Pogo Automatic Blood Glucose Monitoring System · QSYMIA · RECORLEV · RESMETIROM · RYBELSUS · Repatha · Rybelsus · SIGNIFOR LAR · SOLIQUA · SOLIQUA 100/33 · SOMAVERT · STRENSIQ · SYNJARDY · SYNTHROID · Saxenda · Sogroya · Somatuline Depot · Strensiq · Sylvant · Synthroid · TEPEZZA · TOUJEO · TRADJENTA · TRULICITY · TZIELD · Tirosint · Tlando · Tresiba · Tymlos · UNITHROID · V-GO · V-GO DISPOSABLE INSULIN DELIVERY · Vascepa · Veozah · Victoza · Wegovy · XARELTO · XYOSTED · Xultophy 100/3.6 · ZEGALOGUE · ZEPBOUND · iPro2 · t-slim insulin pump · t:slim X2 Insulin Pump with Control-IQ · t:slim X2 insulin pump
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 (98%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in endocrinology and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 1% for endocrinology in NJ.
Geographic Context
Endocrinologists within 10 mi
79
Per 100K population
61.0
County median income
$139,453
Nearest hospital
HUNTERDON 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. Sandberg is a clinical cardiology specialist, with moderate Medicare volume, with speaking/promotional industry engagement in the top 1% of NJ 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. Sandberg experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Sandberg performed 702 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. Sandberg receive payments from pharmaceutical companies?
Yes. Dr. Sandberg received a total of $681,497 from 77 companies across 1,740 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. Sandberg's costs compare to other endocrinologists in Flemington?
Dr. Sandberg's average Medicare payment per service is $66. 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. Sandberg) 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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