Medicare Enrolled
Dr. Boris Mazurov, M.D.
Internal Medicine · Brooklyn, NY
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. Mazurov 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. Mazurov
Dr. Boris Mazurov is an internal medicine specialist in Brooklyn, NY, with 19 years of NPI registration. Based on federal Medicare data, Dr. Mazurov performed 7,617 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Mazurov received a total of $18,669 from 65 pharmaceutical and/or device companies across 921 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. Mazurov 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 of NPI registration
▲ Top 3% volume in NY
$18,669 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗7,617
Medicare services
Top 3% in NY for internal medicine
Not available
Unique patients (not deduplicated)
$30
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 |
|---|---|---|---|
| Injection, calcium gluconate (fresenius kabi), per 10 mg | 4,000 | $0 | $0 |
| 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. |
873 | $75 | $157 |
| 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. |
543 | $111 | $221 |
| 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. |
294 | $3 | $5 |
| 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. |
238 | $12 | $26 |
| Advance care planning consultation, first 30 min A session focused on discussing and documenting future healthcare preferences and goals. This service covers the initial 30 minutes of the planning discussion. |
155 | $93 | $142 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
155 | $1 | $3 |
| Telephone medical discussion, 11-20 minutes A phone conversation with a physician lasting between 11 and 20 minutes. |
130 | $77 | $157 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
126 | $149 | $223 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
116 | $12 | $25 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
107 | $61 | $116 |
| Magnesium sulfate injection, per 500 mg An injection of magnesium sulfate administered in 500 mg increments. |
105 | $1 | $1 |
| Normal saline infusion, 250 cc Administration of 250 cubic centimeters of normal saline solution into a vein. This procedure involves the intravenous delivery of a sterile saltwater fluid. |
70 | $0 | $1 |
| Influenza vaccine, quadrivalent, 0.5 ml dosage | 65 | $20 | $31 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
65 | $36 | $60 |
| Smoking cessation counseling, 4-10 minutes A brief counseling session focused on helping patients quit smoking and tobacco use. The provider spends 4 to 10 minutes discussing strategies and support for cessation. |
59 | $17 | $26 |
| Ultrasound of head and neck soft tissue This procedure uses sound waves to create images of the soft tissues in the head and neck area. It allows for the visualization of structures beneath the skin without using radiation. |
53 | $105 | $200 |
| Obesity behavioral counseling, 15 minutes A 15-minute face-to-face session focused on behavioral counseling to help manage obesity. |
48 | $30 | $45 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
46 | $39 | $99 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
39 | $164 | $346 |
| Additional hour of intravenous infusion This code represents each additional hour of intravenous infusion beyond the initial hour for therapy, prevention, or diagnosis. |
39 | $19 | $36 |
| Normal saline infusion, 500 ml Administration of sterile normal saline solution through an intravenous line. This procedure involves the infusion of a 500 ml unit of the solution. |
36 | $1 | $2 |
| 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. |
27 | $92 | $197 |
| Annual wellness visit, initial visit A yearly appointment to review your health and create a personalized prevention plan. This initial visit focuses on preventive care and health assessment. |
27 | $191 | $285 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
24 | $90 | $193 |
| Calcium gluconate injection An injection of calcium gluconate administered in 10 ml increments. |
24 | $4 | $8 |
| Bone density scan (DEXA) A test that uses low-dose X-rays to measure bone mineral density in the hip, pelvis, and spine. It helps assess bone strength and risk of fractures. |
22 | $46 | $69 |
| Bone density scan (DEXA) of forearm, finger, hand, or foot A DEXA scan measures bone mineral density in the forearm, finger, hand, or foot. This test helps assess bone strength and risk of fracture. |
21 | $38 | $57 |
| Complete ultrasound of abdomen A diagnostic imaging test that uses sound waves to create detailed pictures of the organs and structures within the abdomen. |
19 | $110 | $208 |
| 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. |
18 | $146 | $290 |
| Autonomic nervous system testing with heart rate response to deep breathing This test evaluates the function of the autonomic nervous system by measuring how the heart rate changes in response to deep breathing. |
17 | $82 | $153 |
| Autonomic nervous system function test This test evaluates how well the sympathetic nervous system is functioning. It assesses the automatic control of bodily processes such as heart rate and blood pressure. |
17 | $116 | $217 |
| Ultrasound of leg arteries or grafts An imaging test that uses sound waves to create pictures of the blood vessels in the legs or any surgical grafts present. |
14 | $232 | $432 |
| 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. |
14 | $141 | $340 |
| 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. |
11 | $171 | $488 |
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.
3.8% high complexity
59.5% medium
36.6% routine
Industry Payment Transparency
Open Payments through 2024 ↗$18,669
Total received (2018-2024)
Avg $2,667/year across 7 years
Top 5% in NY for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
65
Companies
921
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
$2,940
2023
$2,810
2022
$3,084
2021
$3,026
2020
$1,756
2019
$2,737
2018
$2,316
Payments by company (2024)
ABBVIE INC.
$373
Boehringer Ingelheim Pharmaceuticals, Inc.
$318
Xeris Pharmaceuticals, Inc.
$256
Novartis Pharmaceuticals Corporation
$248
Corcept Therapeutics
$237
Lilly USA, LLC
$182
Amgen Inc.
$163
Bayer Healthcare Pharmaceuticals Inc.
$138
IRONWOOD PHARMACEUTICALS, INC
$116
Amphastar Pharmaceuticals, Inc.
$113
CeQur Corporation
$101
E.R. Squibb & Sons, L.L.C.
$98
GlaxoSmithKline, LLC.
$93
Ardelyx, Inc.
$91
AIMMUNE THERAPEUTICS, INC.
$64
Esperion Therapeutics, Inc.
$61
Novo Nordisk Inc
$49
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$38
PFIZER INC.
$36
Medtronic, Inc.
$35
ORPHALAN INC
$29
Exact Sciences Corporation
$28
AstraZeneca Pharmaceuticals LP
$26
Abbott Laboratories
$23
Astellas Pharma US Inc
$23
Top 3 companies account for 32.2% of 2024 payments
All-time payments by company (2018-2024) ›
Amgen Inc.
$2,373
Boehringer Ingelheim Pharmaceuticals, Inc.
$1,909
GlaxoSmithKline, LLC.
$1,355
AstraZeneca Pharmaceuticals LP
$1,310
Amarin Pharma Inc.
$1,134
ABBVIE INC.
$1,111
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$975
Novartis Pharmaceuticals Corporation
$865
Lilly USA, LLC
$647
E.R. Squibb & Sons, L.L.C.
$535
AbbVie Inc.
$508
Bayer Healthcare Pharmaceuticals Inc.
$390
Horizon Therapeutics plc
$335
PFIZER INC.
$315
Xeris Pharmaceuticals, Inc.
$295
Corcept Therapeutics
$237
Bayer HealthCare Pharmaceuticals Inc.
$221
Merck Sharp & Dohme LLC
$213
Janssen Pharmaceuticals, Inc
$212
Astellas Pharma US Inc
$210
Novo Nordisk Inc
$206
AbbVie, Inc.
$197
Ironwood Pharmaceuticals, Inc
$190
Takeda Pharmaceuticals U.S.A., Inc.
$188
Nestle HealthCare Nutrition Inc.
$188
Kowa Pharmaceuticals America, Inc.
$178
Merck Sharp & Dohme Corporation
$169
Endo Pharmaceuticals Inc.
$150
Regeneron Healthcare Solutions, Inc.
$144
SANOFI-AVENTIS U.S. LLC
$142
Amneal Pharmaceuticals LLC
$117
IRONWOOD PHARMACEUTICALS, INC
$116
Amphastar Pharmaceuticals, Inc.
$113
CeQur Corporation
$101
Esperion Therapeutics, Inc.
$99
Allergan Inc.
$97
Medtronic, Inc.
$94
Ardelyx, Inc.
$91
Antares Pharma, Inc.
$73
Abbott Laboratories
$68
Nevro Corp.
$68
AIMMUNE THERAPEUTICS, INC.
$64
Allergan, Inc.
$60
IBSA Pharma Inc.
$52
Synergy Pharmaceuticals Inc
$45
Amryt Pharma Holdings Ltd
$44
Radius Health, Inc.
$42
Dexcom, Inc.
$35
VIVUS LLC
$34
ARBOR PHARMACEUTICALS, INC.
$31
ORPHALAN INC
$29
ARALEZ PHARMACEUTICALS US INC.
$29
Exact Sciences Corporation
$28
Teva Pharmaceuticals USA, Inc.
$26
VIVUS, Inc.
$25
Shield Therapeutics Inc
$23
Avanir Pharmaceuticals, Inc.
$22
MannKind Corporation
$20
Intuity Medical Inc
$19
Genentech USA, Inc.
$19
Horizon Pharma plc
$18
Zealand Pharma US, Inc.
$18
Bausch Health US, LLC
$17
DEXCOM, INC.
$17
Seqirus USA Inc
$15
Top 3 companies account for 30.2% of all-time payments
Associated products mentioned in payments ›
ACCRUFER · AFREZZA · AJOVY · ANORO · ANORO ELLIPTA · Aimovig · Amitiza · BAQSIMI · BREO · BREZTRI · CAMZYOS · CHANTIX · CREON · CUVRIOR · CYCLOSET · CeQur Simplicity · Cologuard Collection Kit · Creon · DEXCOM G6 TRANSMITTER · Dexcom G6 Transmitter · Dexilant · ELIQUIS · EMGALITY · ENTRESTO · EUCRISA · EVENITY · Edarbi · Edarbyclor · FARXIGA · FLUCELVAX QUADRIVALENT (MULTI-DOSE VIAL) · FORTEO · FREESTYLE LIBRE · FREESTYLE LIBRE 3 · GVOKE HYPOPEN · Guardian Connect · IBSRELA · INVOKANA · JANUVIA · JARDIANCE · Kerendia · Korlym · LEQVIO · LICART · LINZESS · LYRICA · Linzess · Livalo · MIGRANAL · MINIMED 780G · MOTEGRITY · MOUNJARO · MYCAPSSA · MYRBETRIQ · Motegrity · NASCOBAL · NEXLETOL · NOCDURNA · NUEDEXTA · Omnia · Otezla · Ozempic · PANCREAZE · PENNSAID · PRADAXA · PRALUENT · PRALUENT ALIROCUMAB INJECTION · Pancreaze · Pogo Automatic Blood Glucose Monitoring System · Prolia · QULIPTA · RAYOS · RECORLEV · RELISTOR · Repatha · Rybelsus · SHINGRIX · SOLIQUA · SOLIQUA 100/33 · SPIRIVA RESPIMAT · STEGLATRO · STIOLTO RESPIMAT · SYNTHROID · Synthroid · TEPEZZA · TOUJEO · TRADJENTA · TRELEGY ELLIPTA · TRULANCE · TRULICITY · Tirosint · Trulance · Tymlos · UBRELVY · UNITHROID · VERQUVO · VIBERZI · Vascepa · Veozah · Victoza · Wegovy · XARELTO · XIFAXAN · Xofluza · ZEGALOGUE · ZENPEP · ZONTIVITY
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
Internal medicine physicians in nearby ZIP areas
10,307
County median income
$78,548
Nearest hospital to ZIP centroid (approximate)
SOUTH BROOKLYN HEALTH
0.0 mi
0.0 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. Mazurov is a clinical cardiology specialist, with above-average Medicare volume (top 3% in NY), 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. Mazurov experienced with injection, calcium gluconate (fresenius kabi), per 10 mg?
Based on Medicare claims data, Dr. Mazurov performed 4,000 injection, calcium gluconate (fresenius kabi), per 10 mg 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. Mazurov receive payments from pharmaceutical companies?
Yes. Dr. Mazurov received a total of $18,669 from 65 companies across 921 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. Mazurov's costs compare to other internal medicine physicians in Brooklyn?
Dr. Mazurov's average Medicare payment per service is $30. 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. Mazurov) 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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