Medicare Enrolled
Dr. James Mersey, M.D.
Endocrinology · The Villages, FL
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Mersey 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. Mersey?
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What this data tells you about Dr. Mersey
Dr. James Mersey is an endocrinology specialist in The Villages, FL, with 21 years of NPI registration. Based on federal Medicare data, Dr. Mersey performed 4,718 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Mersey received a total of $59,810 from 47 pharmaceutical and/or device companies across 491 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. Mersey 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.
✓ 21 years of NPI registration
▲ Top 13% volume in FL
$59,810 industry payments
Florida License Status
FL DOH · MQA1
Active license
None
Board action on record
0
Recent admin complaints
| Profession | License # | Status | Expires | Board Action |
|---|---|---|---|---|
| Medical Doctor | 116216 | Clear | January 31, 2027 | — |
Data from Florida Department of Health Medical Quality Assurance.
License records are public under Chapter 119, Florida Statutes.
Verify directly on FL DOH →
Medicare Practice Summary — 2023
Medicare Utilization ↗4,718
Medicare services
Top 13% in FL for endocrinology
Not available
Unique patients (not deduplicated)
$34
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 |
|---|---|---|---|
| Denosumab injection (Prolia/Xgeva) | 2,700 | $18 | $30 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
475 | $57 | $120 |
| 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. |
378 | $91 | $192 |
| 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. |
299 | $77 | $173 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
176 | $6 | $6 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
143 | $10 | $13 |
| 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. |
114 | $9 | $31 |
| 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. |
99 | $27 | $56 |
| 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. |
95 | $120 | $300 |
| Blood glucose level test A test that measures the amount of sugar in your blood. |
90 | $4 | $5 |
| 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. |
72 | $37 | $79 |
| 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. |
34 | $67 | $140 |
| Bone density scan (DEXA) of hip, pelvis, and spine This test measures bone density in the hip, pelvis, and spine to assess bone strength. It also includes an assessment for spine fractures. |
26 | $50 | $85 |
| 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. |
17 | $140 | $275 |
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 ↗$59,810
Total received (2018-2024)
Avg $8,544/year across 7 years
Top 9% in FL for endocrinology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
47
Companies
491
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
$1,527
2023
$1,283
2022
$3,328
2021
$8,876
2020
$2,822
2019
$18,591
2018
$23,383
Payments by company (2024)
Amgen Inc.
$342
Esperion Therapeutics, Inc.
$177
Lilly USA, LLC
$172
Abbott Laboratories
$164
Radius Health, Inc.
$149
Ascensia Diabetes Care Us Inc.
$128
Boehringer Ingelheim Pharmaceuticals, Inc.
$124
Medtronic, Inc.
$117
Tandem Diabetes Care, Inc.
$77
Novo Nordisk Inc
$39
ABBVIE INC.
$25
Dexcom, Inc.
$14
Top 3 companies account for 45.3% of 2024 payments
All-time payments by company (2018-2024) ›
SANOFI-AVENTIS U.S. LLC
$48,832
Novo Nordisk Inc
$1,459
Amgen Inc.
$1,312
Medtronic, Inc.
$1,190
Abbott Laboratories
$1,014
Lilly USA, LLC
$830
Esperion Therapeutics, Inc.
$567
Dexcom, Inc.
$464
Corcept Therapeutics
$443
Horizon Therapeutics plc
$314
Radius Health, Inc.
$293
Tandem Diabetes Care, Inc.
$287
Boehringer Ingelheim Pharmaceuticals, Inc.
$284
AstraZeneca Pharmaceuticals LP
$264
Xeris Pharmaceuticals, Inc.
$237
Janssen Pharmaceuticals, Inc
$221
IBSA Pharma Inc.
$154
AbbVie, Inc.
$142
Ascensia Diabetes Care Us Inc.
$128
GRT US Holding, Inc.
$125
Averitas Pharma Inc.
$124
Ascendis Pharma Inc
$123
Shire North American Group Inc
$121
ABBVIE INC.
$95
Insulet Corporation
$87
Merck Sharp & Dohme Corporation
$87
Mannkind Corporation
$83
AbbVie Inc.
$56
UCB, Inc.
$52
DEXCOM, INC.
$49
MannKind Corporation
$45
Becton, Dickinson and Company
$36
Medtronic MiniMed, Inc.
$31
Boston Scientific Corporation
$30
Bayer HealthCare Pharmaceuticals Inc.
$26
RECORDATI_RARE_DISEASES_INC.
$22
EUSA Pharma (US) LLC
$22
LifeScan, Inc.
$21
Bayer Healthcare Pharmaceuticals Inc.
$21
PFIZER INC.
$18
Takeda Pharmaceuticals U.S.A., Inc.
$18
Novartis Pharmaceuticals Corporation
$16
Ipsen Biopharmaceuticals, Inc
$15
VIVUS LLC
$15
Antares Pharma, Inc.
$14
Companion Medical, Inc.
$14
Merck Sharp & Dohme LLC
$13
Top 3 companies account for 86.3% of all-time payments
Associated products mentioned in payments ›
AFREZZA · Androgel · BAQSIMI · BASAGLAR · BD NANO · Corlanor · DEXCOM CGM · DEXCOM G6 CGM SYSTEM · DEXCOM G6 TRANSMITTER · DEXCOM G7 GSS (161) · Dexcom CGM · Dexcom G6 Transmitter · ENTRESTO · EVENITY · EVERSENSE E3 SENSOR KIT - RETAIL · FARXIGA · FORTEO · FREESTYLE LIBRE · FREESTYLE LIBRE 2 · FREESTYLE LIBRE 3 · FreeStyle Freedom Lite system · FreeStyle Libre · FreeStyle Libre 2 · FreeStyle Libre blood glucose Flash Monitoring System · GVOKE HYPOPEN · GVOKE PFS · HUMULIN · INPEN SMART INSULIN DELIVERY SYSTEM · INVOKANA · InPen · JANUMET XR · JANUVIA · JARDIANCE · Kerendia · Korlym · LYUMJEV · MINIMED 770G · MINIMED 780G · MOUNJARO · Minimed 670G System · Minimed 770G System · NATPARA · NATPARA (PARATHYROID HORMONE) · NEXLETOL · NEXLIZET · Omnipod · OneTouch Verio Reflect · Otrexup · Ozempic · Prolia · QSYMIA · QUTENZA · Qutenza · RYBELSUS · Repatha · Rybelsus · SIGNIFOR LAR · SOLIQUA · SOLIQUA 100/33 · SOMATULINE DEPOT · SOMAVERT · STEGLATRO · SYNTHROID · Saxenda · Sylvant · Synthroid · TEPEZZA · TOUJEO · TRADJENTA · TRULICITY · Tirosint · Tresiba · Tymlos · Victoza · WATCHMAN FLX · Wegovy · XARELTO · t-slim insulin pump · t:slim X2 Insulin Pump with Control-IQ
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
Endocrinologists in nearby ZIP areas
13
County median income
$73,297
Nearest hospital to ZIP centroid (approximate)
UF HEALTH LEESBURG HOSPITAL
6.4 mi
6.4 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. Mersey is a mixed practice specialist, with above-average Medicare volume (top 13% in FL), with 21 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. Mersey experienced with denosumab injection (prolia/xgeva)?
Based on Medicare claims data, Dr. Mersey performed 2,700 denosumab injection (prolia/xgeva) 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. Mersey receive payments from pharmaceutical companies?
Yes. Dr. Mersey received a total of $59,810 from 47 companies across 491 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. Mersey's costs compare to other endocrinologists in The Villages?
Dr. Mersey's average Medicare payment per service is $34. 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. Mersey) 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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