Medicare Enrolled
Dr. Mary Barfield, MD
Family Medicine · Cartersville, GA
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. Barfield 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. Barfield
Dr. Mary Barfield is a family medicine specialist in Cartersville, GA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Barfield performed 2,792 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Barfield received a total of $6,809 from 42 pharmaceutical and/or device companies across 416 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. Barfield 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 12% volume in GA
$6,809 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗2,792
Medicare services
Top 12% in GA for family medicine
Not available
Unique patients (not deduplicated)
$36
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. |
578 | $83 | $157 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
329 | $8 | $15 |
| 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. |
178 | $8 | $40 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
147 | $9 | $45 |
| 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. |
145 | $58 | $107 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
121 | $16 | $70 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
110 | $10 | $60 |
| Kidney function blood test panel | 107 | $8 | $60 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
100 | $13 | $70 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
89 | $122 | $164 |
| 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. |
78 | $2 | $20 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
70 | $9 | $45 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
59 | $28 | $40 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
54 | $15 | $65 |
| Flu vaccine, high-dose High-dose seasonal influenza vaccine for adults aged 65 and older. Contains four times the antigen of standard-dose flu vaccines (60 mcg per strain), split-virus formulation, preservative-free, single-dose syringe. |
54 | $72 | $100 |
| 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. |
52 | $10 | $52 |
| Urine culture, bacterial colony count A laboratory test that measures the number of bacteria growing in a urine sample to help identify infections. |
49 | $8 | $45 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
44 | $29 | $110 |
| Liver function blood test panel | 27 | $8 | $50 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
27 | $13 | $85 |
| Parathyroid hormone level test A blood test that measures the amount of parathyroid hormone in your body. This hormone helps regulate calcium levels in the blood and bones. |
27 | $39 | $155 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
26 | $14 | $75 |
| 3D screening mammography (tomosynthesis) A screening imaging test of the breast using 3D technology to detect potential abnormalities. |
24 | $21 | $70 |
| Screening mammography An X-ray of the breast used to detect breast cancer in women who have no signs or symptoms of the disease. |
24 | $82 | $320 |
| Bacterial culture, aerobic A laboratory test that grows and identifies bacteria capable of surviving in oxygen. The results help determine the presence of specific aerobic microorganisms. |
24 | $8 | $45 |
| Antibiotic sensitivity test A laboratory test that determines which antibiotics, antifungals, or antivirals are effective against a specific microorganism using microdilution or agar dilution methods. |
23 | $8 | $40 |
| Uric acid level test A blood test that measures the level of uric acid in your body. Uric acid is a waste product formed when the body breaks down purines. |
22 | $4 | $30 |
| 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. |
22 | $9 | $73 |
| Iron level test | 20 | $6 | $30 |
| Magnesium level test A blood test to measure the amount of magnesium in your body. This helps check for magnesium deficiency or excess. |
20 | $6 | $25 |
| COVID-19 amplified DNA/RNA probe detection A laboratory test that uses amplified DNA or RNA probes to detect the presence of severe acute respiratory syndrome coronavirus 2 (COVID-19) antigen. |
20 | $50 | $160 |
| Chest X-ray, 2 views An X-ray imaging test of the chest that captures two different angles to visualize the lungs, heart, and chest wall. |
19 | $16 | $80 |
| Sed rate test (inflammation marker) This automated test measures how quickly red blood cells settle in a tube to detect inflammation in the body. |
17 | $3 | $25 |
| Iron binding capacity test A blood test that measures the amount of iron in the blood and the blood's ability to bind and transport iron. |
16 | $9 | $45 |
| 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. |
16 | $132 | $212 |
| PSA test (prostate cancer screening) A blood test that measures the level of prostate-specific antigen to screen for prostate cancer. |
16 | $19 | $95 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
15 | $1 | $16 |
| Transitional care management, high complexity Coordination of care for a patient transitioning from a short-term hospital stay or other facility to home or another care setting. This service addresses a high-complexity medical problem. |
12 | $208 | $660 |
| Creatinine test (kidney function) A blood test that measures the amount of creatinine to assess kidney function or detect muscle injury. |
11 | $5 | $25 |
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 ↗$6,809
Total received (2018-2024)
Avg $973/year across 7 years
Top 9% in GA for family medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
42
Companies
416
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
$1,261
2023
$1,407
2022
$753
2021
$13
2020
$273
2019
$1,555
2018
$1,547
Payments by company (2024)
Novo Nordisk Inc
$281
PFIZER INC.
$194
ABBVIE INC.
$190
Lilly USA, LLC
$143
GlaxoSmithKline, LLC.
$79
Sumitomo Pharma America, Inc.
$65
Dexcom, Inc.
$65
Amgen Inc.
$46
Abbott Laboratories
$37
Astellas Pharma US Inc
$37
Axsome Therapeutics, Inc.
$32
Boehringer Ingelheim Pharmaceuticals, Inc.
$21
Phathom Pharmaceuticals, Inc.
$20
Medtronic, Inc.
$19
Xeris Pharmaceuticals, Inc.
$16
AstraZeneca Pharmaceuticals LP
$15
Top 3 companies account for 52.7% of 2024 payments
All-time payments by company (2018-2024) ›
Novo Nordisk Inc
$1,008
Lilly USA, LLC
$618
PFIZER INC.
$600
Amgen Inc.
$544
AstraZeneca Pharmaceuticals LP
$428
GlaxoSmithKline, LLC.
$362
Astellas Pharma US Inc
$328
ABBVIE INC.
$297
Boehringer Ingelheim Pharmaceuticals, Inc.
$240
AbbVie Inc.
$197
Dexcom, Inc.
$192
Novartis Pharmaceuticals Corporation
$189
SANOFI-AVENTIS U.S. LLC
$183
Janssen Pharmaceuticals, Inc
$156
Abbott Laboratories
$153
Allergan Inc.
$131
Actelion Pharmaceuticals US, Inc.
$125
Sumitomo Pharma America, Inc.
$105
Xeris Pharmaceuticals, Inc.
$96
Takeda Pharmaceuticals U.S.A., Inc.
$93
AbbVie, Inc.
$92
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$84
Ironwood Pharmaceuticals, Inc
$75
Merck Sharp & Dohme Corporation
$59
IDORSIA PHARMACEUTICALS US INC
$55
Biohaven Pharmaceutical Holding Company Ltd.
$48
Siemens Medical Solutions USA, Inc.
$37
Supernus Pharmaceuticals, Inc.
$35
Valeritas, Inc.
$35
Axsome Therapeutics, Inc.
$32
Azurity Pharmaceuticals, Inc.
$23
Upsher-Smith Laboratories LLC
$21
Bausch Health US, LLC
$20
Phathom Pharmaceuticals, Inc.
$20
Medtronic, Inc.
$19
Merck Sharp & Dohme LLC
$18
Shire North American Group Inc
$18
Amarin Pharma Inc.
$17
Synergy Pharmaceuticals Inc
$16
Sunovion Pharmaceuticals Inc.
$15
Allergan, Inc.
$13
Kowa Pharmaceuticals America, Inc.
$11
Top 3 companies account for 32.7% of all-time payments
Associated products mentioned in payments ›
ADVAIR · AIRSUPRA · Adthyza · Aimovig · Amitiza · Androgel · Auvelity · BASAGLAR · BELSOMRA · BEXSERO · BREO · BREZTRI · BYDUREON · BYSTOLIC · CHANTIX · COLOGUARD · CREON · Dexcom G6 Transmitter · ELIQUIS · ENTRESTO · EVENITY · FARXIGA · FLECTOR PATCH · FREESTYLE LIBRE 2 · FREESTYLE LIBRE 3 · FreeStyle Libre · GEMTESA · GVOKE HYPOPEN · Humira · INTELLIS ADAPTIVESTIM · INVOKANA · JANUVIA · JARDIANCE · LINZESS · LYRICA · Linzess · Livalo · MOUNJARO · MYRBETRIQ · NURTEC ODT · Otezla · Ozempic · PNEUMOVAX 23 · PREVNAR - 13 · PREVNAR 13 · PREVNAR 20 · Prolia · QELBREE · QUDEXY XR Topiramate Extended Release Capsules · QULIPTA · QUVIVIQ · Repatha · Rybelsus · SHINGRIX · SOLIQUA 100/33 · STIOLTO RESPIMAT · SYMBICORT · SYNTHROID · Saxenda · Synthroid · TOUJEO · TRADJENTA · TRELEGY ELLIPTA · TROKENDI XR · TRULICITY · Tresiba · Trintellix · Trulance · UBRELVY · V-GO · VESICARE · VIBERZI · VOQUEZNA · VRAYLAR · VYVANSE · Vascepa · Veozah · Victoza · WELLBUTRIN · Wegovy · XARELTO · XIFAXAN · ZEPBOUND
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
265
County median income
$79,431
Nearest hospital to ZIP centroid (approximate)
PIEDMONT CARTERSVILLE MEDICAL CENTER
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. Barfield is a clinical cardiology specialist, with above-average Medicare volume (top 12% in GA), 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. Barfield experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Barfield performed 578 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. Barfield receive payments from pharmaceutical companies?
Yes. Dr. Barfield received a total of $6,809 from 42 companies across 416 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. Barfield's costs compare to other family medicine physicians in Cartersville?
Dr. Barfield's average Medicare payment per service is $36. 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. Barfield) 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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