Medicare Enrolled
Sharon Choi
Internal Medicine · Waxahachie, TX
Practice pattern: Cardiac & Cardiac
— Practice combining cardiac and cardiac services
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 Choi 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 Choi?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Choi
Sharon Choi is an internal medicine specialist in Waxahachie, TX, with 15 years of NPI registration. Based on federal Medicare data, Choi performed 2,589 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Choi received a total of $4,187 from 31 pharmaceutical and/or device companies across 234 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 Choi 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.
✓ 15 years of NPI registration
▲ Top 14% volume in TX
$4,187 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗2,589
Medicare services
Top 14% in TX for internal medicine
Not available
Unique patients (not deduplicated)
$60
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. |
516 | $84 | $238 |
| Echocardiogram, transthoracic An ultrasound of the heart that uses color to show blood flow, rate, direction, and valve function. |
511 | $79 | $420 |
| 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. |
249 | $10 | $51 |
| Anticoagulant management for warfarin Management of anticoagulant therapy for a patient taking warfarin. This service involves monitoring and adjusting the medication regimen. |
208 | $8 | $41 |
| Heart muscle strain imaging | 172 | $23 | $139 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
120 | $8 | $17 |
| 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. |
108 | $107 | $310 |
| Regadenoson injection (Lexiscan) for heart stress test An injection of regadenoson, a medication used to stress the heart during diagnostic testing. |
96 | $44 | $238 |
| Octafluoropropane microsphere injection An injection of octafluoropropane microspheres administered per milliliter. |
96 | $27 | $104 |
| 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. |
74 | $132 | $517 |
| 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. |
68 | $129 | $335 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram under physician supervision and review. |
50 | $47 | $258 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
48 | $92 | $268 |
| Technetium Tc-99m tetrofosmin diagnostic injection A diagnostic injection of Technetium Tc-99m tetrofosmin used for imaging studies. |
40 | $50 | $506 |
| Nuclear stress test of heart muscle A nuclear medicine imaging test that evaluates blood flow to the heart muscle at rest and during stress using a special camera. |
38 | $329 | $1,599 |
| Echocardiogram with color Doppler An ultrasound of the heart that uses color imaging to visualize blood flow, measure flow rate, and assess valve function. |
38 | $2 | $28 |
| Transesophageal echocardiogram An ultrasound of the heart performed using a probe inserted into the esophagus to obtain detailed images of heart structures and function. |
25 | $79 | $393 |
| Follow-up heart ultrasound An ultrasound of the heart performed to monitor or reassess a previously identified condition or treatment progress. |
24 | $19 | $361 |
| Echocardiogram, transthoracic An ultrasound test that uses sound waves to create images of the heart's blood flow, valves, and chambers. |
24 | $14 | $65 |
| 2-day continuous ECG with professional review A two-day continuous electrocardiogram recording that includes a review by a healthcare professional. |
17 | $11 | $85 |
| Follow-up ultrasound of heart blood flow, valves and chambers An ultrasound exam that follows up on the heart's blood flow, valves, and chambers. It uses sound waves to create images of the heart's structure and function. |
16 | $6 | $155 |
| External shock to heart to regulate heart beat A procedure that delivers an electric shock to the heart from outside the body to restore a normal heart rhythm. |
15 | $73 | $707 |
| 2-day continuous ECG monitoring A continuous electrocardiogram recording that captures heart activity over a 48-hour period. This test helps detect irregular heart rhythms or other cardiac issues that may not appear during a standard, short-term ECG. |
13 | $13 | $105 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while monitoring the electrocardiogram, with physician review of the results. |
12 | $9 | $53 |
| Exercise or drug-induced heart stress test with ECG A heart stress test performed using exercise or medication while an electrocardiogram is monitored under physician supervision. |
11 | $14 | $79 |
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.
21.3% high complexity
23.3% medium
55.5% routine
Industry Payment Transparency
Open Payments through 2024 ↗$4,187
Total received (2018-2024)
Avg $598/year across 7 years
Top 19% in TX for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
31
Companies
234
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
$797
2023
$911
2022
$672
2021
$476
2020
$248
2019
$415
2018
$669
Payments by company (2024)
Novartis Pharmaceuticals Corporation
$255
Amgen Inc.
$138
PFIZER INC.
$135
AstraZeneca Pharmaceuticals LP
$69
Boehringer Ingelheim Pharmaceuticals, Inc.
$60
Ethicon US, LLC
$23
Merck Sharp & Dohme LLC
$22
LANTHEUS MEDICAL IMAGING, INC.
$21
E.R. Squibb & Sons, L.L.C.
$21
Esperion Therapeutics, Inc.
$19
Recor Medical Inc
$18
Novo Nordisk Inc
$14
Top 3 companies account for 66.3% of 2024 payments
All-time payments by company (2018-2024) ›
Novartis Pharmaceuticals Corporation
$649
PFIZER INC.
$527
AstraZeneca Pharmaceuticals LP
$381
Boehringer Ingelheim Pharmaceuticals, Inc.
$377
E.R. Squibb & Sons, L.L.C.
$373
Amgen Inc.
$325
Amarin Pharma Inc.
$274
Janssen Pharmaceuticals, Inc
$254
Medtronic, Inc.
$146
Novo Nordisk Inc
$140
Merck Sharp & Dohme LLC
$96
Medtronic Vascular, Inc.
$73
Innovation Technologies Inc
$64
Esperion Therapeutics, Inc.
$60
Terumo Medical Corporation
$56
Merck Sharp & Dohme Corporation
$51
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)
$48
Kiniksa Pharmaceuticals, Ltd.
$37
Lexicon Pharmaceuticals, Inc.
$35
ConvaTec Inc.
$28
Ethicon US, LLC
$23
LANTHEUS MEDICAL IMAGING, INC.
$21
Abbott Laboratories
$21
Actelion Pharmaceuticals US, Inc.
$19
Astellas Pharma US Inc
$18
Recor Medical Inc
$18
CVRx, Inc.
$16
Lantheus Medical Imaging, Inc.
$16
Bayer HealthCare Pharmaceuticals Inc.
$15
HeartFlow, Inc.
$14
SCPHARMACEUTICALS INC.
$13
Top 3 companies account for 37.2% of all-time payments
Associated products mentioned in payments ›
AQUACEL AG+ EXTRA · Arcalyst · BRILINTA · Barostim Neo System · CAMZYOS · Corlanor · DEFINITY · ELIQUIS · ENTRESTO · FARXIGA · FFRct · FUROSCIX · GLIDEWIRE · IRRISEPT · Inpefa · JARDIANCE · Kerendia · LEQVIO · LEXISCAN · LifeVest · Mitra Clip system · NEXLETOL · ONYX FRONTIER · OPSUMIT MACITENTAN · Ozempic · PARADISE RENAL DENERVATION SYSTEM · PROGREAT · Repatha · Rybelsus · TYRX · VERQUVO · VISTASEAL · VYNDAQEL · Vascepa · XARELTO
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
209
County median income
$95,898
Nearest hospital to ZIP centroid (approximate)
BAYLOR SCOTT & WHITE MEDICAL CENTER- WAXAHACHIE
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
Choi is a cardiac & cardiac specialist, with above-average Medicare volume (top 14% in TX), with 15 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Choi experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Choi performed 516 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 Choi receive payments from pharmaceutical companies?
Yes. Choi received a total of $4,187 from 31 companies across 234 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 Choi's costs compare to other internal medicine physicians in Waxahachie?
Choi's average Medicare payment per service is $60. 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 Choi) 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 →
Explore related providers
Same specialty & city
Internal Medicine Physicians in Waxahachie
Browse internal medicine physicians in Waxahachie ranked by procedure volume and transparency data.
Highest volume
Top Internal Medicine Physicians in TX
Internal medicine physicians ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Internal Medicine Physicians in TX
Which TX internal medicine physicians receive the most from drug and device companies.
By company
Novartis Pharmaceuticals Corporation Payments to Doctors
See all physicians who received payments from Novartis Pharmaceuticals Corporation.
By company
PFIZER INC. Payments to Doctors
See all physicians who received payments from PFIZER INC.
By company
AstraZeneca Pharmaceuticals LP Payments to Doctors
See all physicians who received payments from AstraZeneca Pharmaceuticals LP.
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.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology