Medicare Enrolled
Dr. Grodonoff Nelson, D.O.
Family Medicine · Ocala, FL
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. Nelson 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. Nelson
Dr. Grodonoff Nelson is a family medicine specialist in Ocala, FL, with 15 years of NPI registration. Based on federal Medicare data, Dr. Nelson performed 2,650 Medicare services across 1,838 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nelson received a total of $12,055 from 46 pharmaceutical and/or device companies across 667 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. Nelson is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 15 years in practice
▲ Top 13% volume in FL
$12,055 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 |
|---|---|---|---|---|
| Osteopathic Physician | 11869 | Clear | March 31, 2028 | — |
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
Medicare Utilization ↗2,650
Medicare services
Top 13% in FL for family medicine
1,838
Unique beneficiaries
$28
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~177 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. |
297 | $81 | $225 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
252 | $8 | $9 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
229 | $10 | $45 |
| 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. |
222 | $8 | $33 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
209 | $13 | $57 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
207 | $9 | $41 |
| 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. |
139 | $10 | $75 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
127 | $1 | $7 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
122 | $16 | $71 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
119 | $128 | $341 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
115 | $15 | $64 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
98 | $29 | $125 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
94 | $9 | $39 |
| Automated urinalysis An automated laboratory test performed on a urine sample to analyze its chemical and physical properties. The procedure uses machinery to detect various substances and cells within the urine. |
74 | $2 | $10 |
| 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. |
59 | $49 | $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. |
55 | $136 | $303 |
| 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. |
48 | $6 | $20 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
45 | $14 | $63 |
| Cardiac enzyme level (CK-MB) test A blood test that measures the total level of creatine kinase, specifically the cardiac enzyme fraction, to help evaluate heart muscle damage. |
40 | $6 | $28 |
| PSA test (prostate cancer screening) A blood test that measures the level of prostate-specific antigen to screen for prostate cancer. |
38 | $19 | $62 |
| 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. |
20 | $10 | $67 |
| Nursing facility visit, moderate complexity A follow-up visit by a healthcare provider at a nursing facility for an established patient. The visit involves moderate medical decision making and takes at least 30 minutes. |
17 | $75 | $186 |
| Initial nursing facility care, moderate complexity Initial care provided to a patient in a nursing facility with moderate medical decision making, taking at least 35 minutes. |
13 | $107 | $280 |
| 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. |
11 | $97 | $358 |
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 ↗$12,055
Total received (2018-2024)
Avg $1,722/year across 7 years
Top 3% in FL for family medicine
46
Companies
667
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
$12,055 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,509
2023
$1,761
2022
$1,464
2021
$997
2020
$774
2019
$2,448
2018
$3,100
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Novo Nordisk Inc
$2,143
AstraZeneca Pharmaceuticals LP
$1,939
Lilly USA, LLC
$1,109
Amarin Pharma Inc.
$724
GlaxoSmithKline, LLC.
$620
Astellas Pharma US Inc
$566
SANOFI-AVENTIS U.S. LLC
$534
Boehringer Ingelheim Pharmaceuticals, Inc.
$531
PFIZER INC.
$478
Janssen Pharmaceuticals, Inc
$419
ABBVIE INC.
$389
Medtronic, Inc.
$327
Amgen Inc.
$321
Teva Pharmaceuticals USA, Inc.
$176
Horizon Pharma plc
$151
AbbVie Inc.
$142
Novartis Pharmaceuticals Corporation
$138
Bayer HealthCare Pharmaceuticals Inc.
$133
Kowa Pharmaceuticals America, Inc.
$132
Ipsen Biopharmaceuticals, Inc
$125
Merck Sharp & Dohme Corporation
$110
Allergan Inc.
$85
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$64
IDORSIA PHARMACEUTICALS US INC
$62
Sunovion Pharmaceuticals Inc.
$59
Otsuka America Pharmaceutical, Inc.
$55
Lundbeck LLC
$51
Phathom Pharmaceuticals, Inc.
$50
Neurocrine Biosciences, Inc.
$41
Allergan, Inc.
$39
Bayer Healthcare Pharmaceuticals Inc.
$38
Vanda Pharmaceuticals Inc.
$34
E.R. Squibb & Sons, L.L.C.
$32
Abbott Laboratories
$30
Insulet Corporation
$27
Biohaven Pharmaceutical Holding Company Ltd.
$23
Noden Pharma USA Inc
$21
Ironwood Pharmaceuticals, Inc
$17
Biohaven Pharmaceuticals, Inc.
$16
Orexigen Therapeutics, Inc.
$16
DEXCOM, INC.
$16
Eisai Inc.
$15
Takeda Pharmaceuticals U.S.A., Inc.
$15
Horizon Therapeutics plc
$14
Boston Scientific Corporation
$14
Shire North American Group Inc
$12
Top 3 companies account for 43.1% of total payments
Associated products mentioned in payments ›
ADVAIR · AIRSUPRA · AJOVY · ANORO · ANORO ELLIPTA · Aimovig · BASAGLAR · BREO · BREZTRI · BYDUREON · BYSTOLIC · CHANTIX · CONTRAVE · DEXCOM G6 TRANSMITTER · DUEXIS · Dayvigo · ELIQUIS · EMGALITY · ENTRESTO · EUCRISA · EVENITY · FARXIGA · FreeStyle Libre · HETLIOZ · INGREZZA · INTERSTIM · INVOKANA · JANUVIA · JARDIANCE · KYPHON EXPRESS II KYPHOPAK TRAY · Kerendia · LINZESS · LOKELMA · LONHALA MAGNAIR · LYRICA · Linzess · Livalo · MOUNJARO · MYRBETRIQ · Myrbetriq · NURTEC ODT · OXBRYTA · Omnipod · Otezla · Ozempic · PAXLOVID · PENNSAID · PRALUENT · PREMARIN · PREVNAR 20 · PRIMARY CARE - DISEASE STATE · QULIPTA · QUVIVIQ · REXULTI · RYBELSUS · Repatha · Rybelsus · SEGLENTIS · SHINGRIX · SOLIQUA · SOLIQUA 100/33 · SPECTRA WAVEWRITER · SPIRIVA RESPIMAT · STIOLTO RESPIMAT · SYMBICORT · Saxenda · Somatuline Depot · TEKTURNA · TOUJEO · TOVIAZ · TRADJENTA · TRELEGY ELLIPTA · TRINTELLIX · TRULICITY · Tresiba · UBRELVY · VIBERZI · VIMOVO · VOQUEZNA · VRAYLAR · VYVANSE · Vascepa · Veozah · Victoza · Wegovy · XARELTO · XIFAXAN · Xultophy 100/3.6 · ZOSTAVAX
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 3% for family medicine in FL.
Equivalent to $455 per 100 Medicare services performed
Geographic Context
Family medicine physicians within 10 mi
220
Per 100K population
56.7
County median income
$58,535
Nearest hospital
MARION COMMUNTIY HOSPITAL
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 measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Nelson is a clinical cardiology specialist, with above-average Medicare volume (top 13% in FL), with low-engagement industry engagement in the top 3% of FL peers, with 15 years of NPI registration.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Nelson experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Nelson performed 297 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. Nelson receive payments from pharmaceutical companies?
Yes. Dr. Nelson received a total of $12,055 from 46 companies across 667 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. Nelson's costs compare to other family medicine physicians in Ocala?
Dr. Nelson's average Medicare payment per service is $28. 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. Nelson) 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. The Transparency Score measures 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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