Medicare Enrolled
Dr. Mark Schaar, MD
Family Medicine · Lansing, MI
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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. Schaar 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. Schaar
Dr. Mark Schaar is a family medicine specialist in Lansing, MI, with 20 years of NPI registration. Based on federal Medicare data, Dr. Schaar performed 331 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Schaar received a total of $16,732 from 66 pharmaceutical and/or device companies across 1015 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Schaar 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 of NPI registration
▲ Top 48% volume in MI
$16,732 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗331
Medicare services
Top 48% in MI for family medicine
Not available
Unique patients (not deduplicated)
$67
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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. |
173 | $79 | $163 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
48 | $125 | $231 |
| Annual depression screening | 45 | $17 | $33 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
33 | $10 | $17 |
| 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. |
21 | $56 | $113 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
11 | $28 | $28 |
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. These counts do not measure clinical quality or years of experience.
Industry Payment Transparency
Open Payments through 2024 ↗$16,732
Total received (2018-2024)
Avg $2,390/year across 7 years
Top 1% in MI for family medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
66
Companies
1,015
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,647
2023
$2,264
2022
$2,710
2021
$3,013
2020
$1,427
2019
$2,223
2018
$2,448
Payments by company (2024)
PFIZER INC.
$346
ABBVIE INC.
$278
GlaxoSmithKline, LLC.
$250
Otsuka America Pharmaceutical, Inc.
$217
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
$194
AstraZeneca Pharmaceuticals LP
$193
Grifols USA, LLC
$171
Axsome Therapeutics, Inc.
$163
Novo Nordisk Inc
$155
Lilly USA, LLC
$77
Antares Pharma, Inc.
$74
Merck Sharp & Dohme LLC
$72
Amgen Inc.
$71
Exact Sciences Corporation
$66
Radius Health, Inc.
$53
Boehringer Ingelheim Pharmaceuticals, Inc.
$50
Boston Scientific Corporation
$37
Alkermes, Inc.
$27
Abbott Laboratories
$25
Actelion Pharmaceuticals US, Inc.
$20
Novartis Pharmaceuticals Corporation
$19
Collegium Pharmaceutical, Inc.
$17
Averitas Pharma Inc.
$16
Gilead Sciences, Inc.
$15
Takeda Pharmaceuticals U.S.A., Inc.
$14
Lundbeck LLC
$14
Eisai Inc.
$14
Top 3 companies account for 33.0% of 2024 payments
All-time payments by company (2018-2024) ›
Novo Nordisk Inc
$1,682
Amgen Inc.
$1,513
GlaxoSmithKline, LLC.
$1,426
Otsuka America Pharmaceutical, Inc.
$1,195
Lilly USA, LLC
$922
AstraZeneca Pharmaceuticals LP
$831
ABBVIE INC.
$814
PFIZER INC.
$661
AbbVie Inc.
$622
Janssen Pharmaceuticals, Inc
$560
Teva Pharmaceuticals USA, Inc.
$514
Allergan Inc.
$384
Novartis Pharmaceuticals Corporation
$288
Biohaven Pharmaceuticals, Inc.
$281
Astellas Pharma US Inc
$274
Bayer HealthCare Pharmaceuticals Inc.
$231
Axsome Therapeutics, Inc.
$229
Boehringer Ingelheim Pharmaceuticals, Inc.
$223
Gilead Sciences, Inc.
$214
Amarin Pharma Inc.
$209
ITI, Inc.
$206
Merck Sharp & Dohme Corporation
$204
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
$194
E.R. Squibb & Sons, L.L.C.
$175
Esperion Therapeutics, Inc.
$174
Grifols USA, LLC
$171
Biohaven Pharmaceutical Holding Company Ltd.
$162
Antares Pharma, Inc.
$159
Nestle HealthCare Nutrition Inc.
$140
Merck Sharp & Dohme LLC
$138
Eisai Inc.
$136
Paratek Pharmaceuticals, Inc.
$125
Allergan, Inc.
$122
SANOFI-AVENTIS U.S. LLC
$122
Radius Health, Inc.
$122
NESTLE HEALTHCARE NUTRITION INC.
$114
Takeda Pharmaceuticals U.S.A., Inc.
$108
Exact Sciences Corporation
$87
Mylan Specialty L.P.
$81
GRT US Holding, Inc.
$68
SANOFI PASTEUR INC.
$63
Xeris Pharmaceuticals, Inc.
$62
Boston Scientific Corporation
$60
Collegium Pharmaceutical, Inc.
$56
Jazz Pharmaceuticals Inc.
$55
Alkermes, Inc.
$54
Seqirus USA Inc
$53
Lundbeck LLC
$49
Averitas Pharma Inc.
$42
Abbott Laboratories
$41
Otsuka Pharmaceutical Development & Commercialization, Inc.
$41
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$39
Electromed, Inc.
$35
Supernus Pharmaceuticals, Inc.
$34
Philips Electronics North America Corporation
$23
Actelion Pharmaceuticals US, Inc.
$20
IDORSIA PHARMACEUTICALS US INC
$16
ABIOMED
$15
Sunovion Pharmaceuticals Inc.
$14
JAZZ PHARMACEUTICALS INC.
$13
Upsher-Smith Laboratories LLC
$13
Daiichi Sankyo Inc.
$12
Shire North American Group Inc
$12
Phadia US Inc.
$12
Medtronic, Inc.
$11
Penumbra, Inc.
$9
Top 3 companies account for 27.6% of all-time payments
Associated products mentioned in payments ›
ABILIFY ASIMTUFII · AIMOVIG · AIRSUPRA · AJOVY · ANORO · ANORO ELLIPTA · AREXVY · Aimovig · AirDuo Digihaler · AmBisome · Auvelity · BELSOMRA · BEXSERO · BREZTRI · BREZTRI AEROSPHERE · CAPLYTA · CHANTIX · COLOGUARD · CREON · Cologuard Collection Kit · DIFICID · Dayvigo · Descovy · ELIQUIS · EMGALITY · ENTRESTO · EVENITY · FARXIGA · FLUBLOK QUADRIVALENT · FLUCELVAX QUADRIVALENT · FLUZONE HIGH-DOSE · FLUZONE QUADRIVALENT NORTHERN HEMISPHERE · FREESTYLE LIBRE 3 · Fluad Quadrivalent · FreeStyle Libre 2 · GARDASIL · GARDASIL 9 · GVOKE HYPOPEN · INJECTAFER · INVOKANA · ImmunoCAP · Impella · InPen · Indigo System · JANUVIA · JARDIANCE · KEVEYIS · Kerendia · LANTUS · LATUDA · LEQVIO · LINZESS · LYRICA · Leqembi · MOUNJARO · MOVANTIK · MYDAYIS · MYRBETRIQ · NEXLETOL · NEXLIZET · NOCDURNA · NURTEC ODT · NUZYRA · OPSUMIT · Otezla · Ozempic · PAXLOVID · PRADAXA · PRALUENT · PREVNAR 20 · Prolastin-C Liquid · Prolia · QULIPTA · QUTENZA · QUVIVIQ · Qutenza · REXULTI · RINVOQ · RYBELSUS · Repatha · Respiratoriy Care Undiv · Rybelsus · SHINGRIX · SMARTVEST · SOLIQUA · SOLIQUA 100/33 · SPRAVATO · STIOLTO RESPIMAT · SUNOSI · Saxenda · Sunosi · TOSYMRA SUMATRIPTAN NASAL SPRAY · TOUJEO · TRADJENTA · TRELEGY ELLIPTA · TRINTELLIX · TRULICITY · TRUMENBA · Tresiba · Trintellix · Tymlos · UBRELVY · VESICARE · VIBERZI · VIIBRYD · VIVITROL · VOWST · VRAYLAR · VYEPTI · Vascepa · Veklury · Victoza · Vivitrol · Vyvanse · Wegovy · XARELTO · XIFAXAN · XTAMPZA · XYOSTED · YUPELRI · Yupelri · ZENPEP
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. 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 →
Geographic Context
Family medicine physicians in nearby ZIP areas
351
County median income
$64,354
Nearest hospital to ZIP centroid (approximate)
MCLAREN GREATER LANSING
3.0 mi
3.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | 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. Schaar is a clinical cardiology specialist, with moderate Medicare volume, 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. Schaar experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Schaar performed 173 office visit, established patient (30-39 min) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Schaar receive payments from pharmaceutical companies?
Yes. Dr. Schaar received a total of $16,732 from 66 companies across 1,015 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. 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. Schaar's costs compare to other family medicine physicians in Lansing?
Dr. Schaar's average Medicare payment per service is $67. 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. Schaar) 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 the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. 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?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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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