Medicare Enrolled
Dr. Margarita Johnston, MD
Urology Physician · Dallas, TX
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. Johnston 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. Johnston
Dr. Margarita Johnston is an urology physician in Dallas, TX, with 20 years of NPI registration. Based on federal Medicare data, Dr. Johnston performed 1,494 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Johnston received a total of $43,949 from 71 pharmaceutical and/or device companies across 582 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. Johnston 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
▲ 1,494 Medicare services
$43,949 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗1,494
Medicare services
Bottom 44% in TX for urology physician
Not available
Unique patients (not deduplicated)
$65
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 |
|---|---|---|---|
| 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. |
198 | $2 | $16 |
| 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. |
188 | $94 | $368 |
| Infectious disease DNA/RNA test A laboratory test that uses a specific technique to detect the genetic material of an organism. This method amplifies the target DNA or RNA to identify the presence of the organism. |
169 | $34 | $166 |
| Bladder ultrasound after voiding An ultrasound scan performed after urination to measure the amount of urine remaining in the bladder. |
142 | $8 | $97 |
| 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. |
136 | $68 | $250 |
| 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. |
124 | $116 | $565 |
| 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. |
81 | $41 | $150 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
71 | $103 | $470 |
| Cystourethroscopy A diagnostic exam of the bladder and urethra using an endoscope to visually inspect the urinary tract. |
68 | $191 | $684 |
| 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. |
64 | $64 | $247 |
| Nucleic acid test for organism quantification A laboratory test that uses nucleic acid detection to measure the amount of a specific organism present in a sample. |
39 | $42 | $222 |
| Prostate gland biopsy A procedure to remove small samples of tissue from the prostate gland for laboratory examination. |
24 | $188 | $775 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
24 | $48 | $633 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
20 | $8 | $20 |
| Ureteral stone crushing with stent insertion An endoscope is used to break up a stone in the ureter, followed by the placement of a stent to keep the ureter open. |
19 | $361 | $1,607 |
| 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. |
18 | $75 | $372 |
| Ureteral stent insertion via endoscope A flexible tube is inserted into the ureter using an endoscope to keep the passage open and allow urine to flow from the kidney to the bladder. |
16 | $97 | $2,685 |
| Insertion of temporary bladder tube | 15 | $36 | $260 |
| Yeast/candida DNA test A laboratory test that uses an amplified probe technique to detect the presence of Candida species, a type of yeast, in a patient sample. |
13 | $34 | $123 |
| VRE nucleic acid detection test A laboratory test that uses amplified probe techniques to detect vancomycin-resistant Enterococcus (VRE) DNA in a patient sample. |
13 | $34 | $182 |
| Staphylococcus aureus DNA test A laboratory test that uses DNA amplification to detect the presence of Staphylococcus aureus bacteria in a sample. |
13 | $34 | $153 |
| MRSA nucleic acid detection test A laboratory test that uses amplified probe techniques to detect the genetic material of methicillin-resistant Staphylococcus aureus (MRSA) bacteria. |
13 | $34 | $153 |
| Strep A nucleic acid test, quantification A laboratory test that uses nucleic acid detection to identify and measure the amount of Group A Streptococcus bacteria. |
13 | $41 | $146 |
| Group B Strep DNA test A laboratory test that uses DNA amplification to detect the presence of Group B Streptococcus bacteria. |
13 | $34 | $123 |
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.
2.3% high complexity
12.7% medium
84.9% routine
Industry Payment Transparency
Open Payments through 2024 ↗$43,949
Total received (2018-2024)
Avg $6,278/year across 7 years
Top 6% in TX for urology physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
71
Companies
582
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
$2,059
2023
$3,840
2022
$3,713
2021
$2,203
2020
$1,673
2019
$5,008
2018
$25,453
Payments by company (2024)
COLOPLAST CORP
$438
Axonics, Inc.
$228
ConvaTec Inc.
$227
Sumitomo Pharma America, Inc.
$204
ARGON MEDICAL DEVICES, INC.
$163
Boston Scientific Corporation
$124
Ferring Pharmaceuticals Inc.
$103
Endo USA, Inc.
$86
ABC Home Medical Supply, Inc.
$64
Astellas Pharma US Inc
$55
Dendreon Pharmaceuticals LLC
$50
Integra LifeSciences Corporation
$35
C. R. Bard, Inc. & Subsidiaries
$31
UROGEN PHARMA, INC.
$31
PROCEPT BioRobotics Corporation
$28
Blue Earth Diagnostics Limited
$26
Cook Medical LLC
$24
ACCORD HEALTHCARE, INC.
$20
Innovation Technologies Inc
$20
Merck Sharp & Dohme LLC
$19
Hollister Incorporated
$19
Endo Pharmaceuticals Inc.
$18
Avation Medical, Inc.
$17
Myriad Genetic Laboratories, Inc.
$15
Olympus America Inc.
$14
Top 3 companies account for 43.4% of 2024 payments
All-time payments by company (2018-2024) ›
AMAG Pharmaceuticals, Inc.
$25,818
Coloplast Corp
$3,120
Astellas Pharma US Inc
$2,112
COLOPLAST CORP
$1,234
Axonics, Inc.
$1,108
Boston Scientific Corporation
$1,029
Valencia Technologies Corporation
$638
NeoTract Inc.
$552
Medtronic USA, Inc.
$529
Janssen Biotech, Inc.
$503
Endo Pharmaceuticals Inc.
$495
BOSTON SCIENTIFIC CORPORATION
$472
Antares Pharma, Inc.
$394
Teleflex LLC
$375
Sumitomo Pharma America, Inc.
$345
ARGON MEDICAL DEVICES, INC.
$344
ConvaTec Inc.
$340
Myriad Genetic Laboratories, Inc.
$322
Dendreon Pharmaceuticals LLC
$303
Medtronic, Inc.
$301
C. R. Bard, Inc. & Subsidiaries
$299
PROCEPT BioRobotics Corporation
$284
Axonics Modulation Technologies, Inc.
$255
PFIZER INC.
$240
Ferring Pharmaceuticals Inc.
$198
Duchesnay USA Incorporated
$184
Blue Earth Diagnostics Limited
$173
Bayer HealthCare Pharmaceuticals Inc.
$120
Janssen Products, LP
$100
TOLMAR Pharmaceuticals, Inc.
$95
ACCORD HEALTHCARE, INC.
$95
UROVANT SCIENCES INC
$93
Endo USA, Inc.
$86
Avadel Specialty Pharmaceuticals, LLC
$72
Sun Pharmaceutical Industries Inc.
$71
Amgen Inc.
$71
Rochester Medical Corporation
$68
Myovant Sciences Inc.
$66
ABC Home Medical Supply, Inc.
$64
Progenics Pharmaceuticals, Inc.
$57
AbbVie Inc.
$56
Cook Medical LLC
$54
MILLICENT US INC
$54
UROGEN PHARMA, INC.
$50
Olympus America Inc.
$49
Kowa Pharmaceuticals America, Inc.
$38
Acerus Pharmaceuticals Corporation
$38
AstraZeneca Pharmaceuticals LP
$37
Janssen Scientific Affairs, LLC
$35
Hollister Incorporated
$35
Integra LifeSciences Corporation
$35
Augmenix, Inc.
$31
Photocure Inc
$31
Aytu BioScience, Inc
$30
Janssen Pharmaceuticals, Inc
$29
Allergan Inc.
$28
Tolmar, Inc.
$27
Mission Pharmacal Company
$25
Clarus Therapeutics Inc.
$25
Merck Sharp & Dohme Corporation
$21
ABBVIE INC.
$21
Alexion Pharmaceuticals, Inc.
$21
Innovation Technologies Inc
$20
Merck Sharp & Dohme LLC
$19
UroGen Pharma, Inc.
$18
Incyte Corporation
$18
EISAI INC.
$17
Avation Medical, Inc.
$17
Telix Pharmaceuticals
$16
AbbVie, Inc.
$15
Allergan, Inc.
$15
Top 3 companies account for 70.6% of all-time payments
Associated products mentioned in payments ›
ADSTILADRIN · ADVANCE · ADVANTAGE FIT · AMS · AMS 700 · AMS 700 CXR RTE Kit · AMS 800 Artificial Urinary Sphincter · AQUABEAM ROBOTIC SYSTEM · AQUABEAM SYSTEM · ARIS · AVEED · Altis · Androgel · Axonics · Axonics r-SNM System · Axumin · BIOFIX · BOTOX · BOTOX THERAPEUTIC · Bard Urinary Drainage Bag · Bulkamid · CAMCEVI · COOK · COOK MEDICAL LASERS · Clot Management · Cysview · ELIGARD · ERLEADA · Erleada · FIRMAGON · GEMTESA · GENERAL BPH · GENERAL MALE SUI · GENTLECATH · GENTLECATH GLIDE · GREENLIGHT · General - Erectile Dysfunction · ILLUCCIX · IMBRUVICA · IMFINZI · INTERSTIM · INTRAROSA · IRRISEPT · ImaJin · Infyna Chic · Isiris · JATENZO · JELMYTO · KEYTRUDA · LITHOVUE · LUPRON DEPOT · LYNPARZA · Lenvima · LithoVue · MONJUVI · MYRBETRIQ · Myrbetriq · NOCDURNA · Natesto · Noctiva · Nubeqa · ORGOVYX · OTREXUP · Odomzo · Olympus Stents · Osphena · Otrexup · PADCEV · POSLUMA · PROLARIS · PROMAG · PROVENGE · PYLARIFY · Prolia · RESONANCE · REZUM · ReTrace · Rezum Generator · SEGLENTIS · SpaceOAR · SpeediCath · TITAN · TLANDO · TRUCORE · Titan · Tria Firm · UROLIFT · Uribel · UroLift · UroLift System · VERIFY · Veozah · Virtue · Vivally · XIAFLEX · XTANDI · XYOSTED · Xofigo · Xtandi · YONSA · ZYTIGA · eCoin Device Kit · iTIND System · rezum Generator
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
Urology physicians in nearby ZIP areas
138
County median income
$74,149
Nearest hospital to ZIP centroid (approximate)
MEDICAL CITY DALLAS HOSPITAL
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. Johnston is a clinical cardiology specialist, with moderate Medicare volume, 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. Johnston experienced with automated urinalysis?
Based on Medicare claims data, Dr. Johnston performed 198 automated urinalysis 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. Johnston receive payments from pharmaceutical companies?
Yes. Dr. Johnston received a total of $43,949 from 71 companies across 582 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. Johnston's costs compare to other urology physicians in Dallas?
Dr. Johnston's average Medicare payment per service is $65. 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. Johnston) 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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