Medicare Enrolled
Dr. Marilyn Landrum, MD
Pediatrics · Denison, TX
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. Landrum 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. Landrum?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Landrum
Dr. Marilyn Landrum is a pediatrics specialist in Denison, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Landrum performed 5,151 Medicare services across 3,649 unique beneficiaries.
Between the years covered by Open Payments, Dr. Landrum received a total of $3,301 from 29 pharmaceutical and/or device companies across 261 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in pediatrics. 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. Landrum 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.
✓ 19 years in practice
▲ Top 4% volume in TX
$3,301 industry payments
Medicare Practice Summary
Medicare Utilization ↗5,151
Medicare services
Top 4% in TX for pediatrics
3,649
Unique beneficiaries
$34
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~271 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 (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. |
685 | $57 | $178 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
560 | $8 | $15 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
416 | $10 | $63 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
407 | $13 | $69 |
| 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. |
312 | $8 | $46 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
304 | $16 | $70 |
| 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. |
300 | $84 | $254 |
| Advance care planning consultation, first 30 min A session focused on discussing and documenting future healthcare preferences and goals. This service covers the initial 30 minutes of the planning discussion. |
258 | $74 | $164 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
235 | $125 | $256 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
233 | $9 | $30 |
| 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. |
208 | $2 | $11 |
| Annual depression screening | 196 | $18 | $35 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
188 | $9 | $32 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
113 | $30 | $40 |
| 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. |
111 | $71 | $158 |
| Urinalysis with microscopic exam A urine test performed manually that includes examining the sample under a microscope to check for abnormalities. |
82 | $3 | $16 |
| Annual alcohol misuse screening, 5 to 15 minutes | 67 | $18 | $35 |
| 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. |
60 | $37 | $171 |
| 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. |
48 | $210 | $488 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
42 | $8 | $41 |
| PSA test (prostate cancer screening) | 42 | $18 | $60 |
| 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. |
37 | $26 | $95 |
| Home health plan of care re-certification A physician reviews the patient's status and contacts the home health agency to re-certify the plan of care without the patient being present. |
30 | $32 | $112 |
| 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. |
29 | $10 | $80 |
| 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. |
28 | $11 | $49 |
| 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. |
22 | $6 | $15 |
| 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 | $18 |
| 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. |
20 | $39 | $110 |
| Home health plan of care certification Certification by a physician or allowed practitioner for Medicare-covered home health services under a home health plan of care. This includes contacting the home health agency and reviewing reports of patient status required by physicians. |
17 | $40 | $127 |
| Ultrasound of head and neck blood flow, bilateral An ultrasound exam that uses sound waves to visualize and assess blood flow in the vessels of both the head and the neck. |
16 | $133 | $418 |
| Erythrocyte sedimentation rate (ESR) test A blood test that measures how quickly red blood cells settle in a test tube to detect inflammation in the body. This specific method is performed manually rather than using an automated machine. |
14 | $4 | $16 |
| Routine 12-lead ECG screening A standard 12-lead electrocardiogram performed as part of an initial preventive physical examination. The service includes both the performance of the test and the physician's interpretation and report. |
14 | $6 | $30 |
| Initial preventive physical examination, new Medicare beneficiary A comprehensive preventive health visit for new Medicare beneficiaries during their first 12 months of enrollment. The service is conducted as a face-to-face visit and is limited to preventive care. |
13 | $158 | $323 |
| X-ray of lower and sacral spine, 2-3 views An X-ray imaging test that captures 2 to 3 views of the lower back and sacral spine to visualize the bones and joints in this area. |
11 | $31 | $104 |
| Pneumonia vaccine administration This procedure involves the injection of a vaccine to protect against pneumococcal disease. It is administered by a healthcare provider. |
11 | $30 | $50 |
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 ↗$3,301
Total received (2018-2024)
Avg $472/year across 7 years
Top 4% in TX for pediatrics
29
Companies
261
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
$3,301 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$463
2023
$341
2022
$177
2021
$67
2020
$168
2019
$867
2018
$1,218
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
AstraZeneca Pharmaceuticals LP
$633
Amgen Inc.
$355
PFIZER INC.
$340
Novo Nordisk Inc
$301
GlaxoSmithKline, LLC.
$281
Janssen Pharmaceuticals, Inc
$192
Supernus Pharmaceuticals, Inc.
$170
Merck Sharp & Dohme Corporation
$150
Lilly USA, LLC
$102
Novartis Pharmaceuticals Corporation
$100
Sunovion Pharmaceuticals Inc.
$81
Exact Sciences Corporation
$79
Boehringer Ingelheim Pharmaceuticals, Inc.
$77
Takeda Pharmaceuticals U.S.A., Inc.
$59
Abbott Laboratories
$54
Merck Sharp & Dohme LLC
$53
ABBVIE INC.
$40
Allergan Inc.
$39
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$30
Dexcom, Inc.
$28
Medtronic USA, Inc.
$21
Bayer Healthcare Pharmaceuticals Inc.
$18
Medtronic MiniMed, Inc.
$17
Medtronic, Inc.
$15
Dynavax Technologies Corporation
$15
Ardelyx, Inc.
$14
Orexigen Therapeutics, Inc.
$13
Genentech USA, Inc.
$13
AbbVie, Inc.
$12
Top 3 companies account for 40.2% of total payments
Associated products mentioned in payments ›
ANORO · ANORO ELLIPTA · AREXVY · BELSOMRA · BREZTRI · BYSTOLIC · CHANTIX · CONTRAVE · Cologuard Collection Kit · Creon · DIFICID · Dexcom G6 Transmitter · EMGALITY · ENTRESTO · EVENITY · Entyvio · FARXIGA · FORTEO · FREESTYLE LIBRE · FREESTYLE LIBRE 3 · GARDASIL · Heplisav-B · IBSRELA · INPEN SMART INSULIN DELIVERY SYSTEM · INVOKANA · JANUMET · JANUMET XR · JANUVIA · JARDIANCE · KYPHON Balloon Kyphoplasty · Kerendia · LINZESS · LONHALA MAGNAIR · LYRICA · MOUNJARO · Minimed 670G System · Otezla · Ozempic · Prolia · Repatha · Rybelsus · SHINGRIX · SYMBICORT · TOVIAZ · TRELEGY ELLIPTA · TROKENDI XR · TRULICITY · Tresiba · Trintellix · Utibron · VIAGRA · VIBERZI · VRAYLAR · Victoza · XARELTO · XIFAXAN · Xofluza
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 4% for pediatrics in TX.
Equivalent to $64 per 100 Medicare services performed
Geographic Context
Pediatricians within 10 mi
24
Per 100K population
17.1
County median income
$70,455
Nearest hospital
TEXOMA MEDICAL CENTER
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. Landrum is a clinical cardiology specialist, with above-average Medicare volume (top 4% in TX), with low-engagement industry engagement in the top 4% of TX peers, with 19 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. Landrum experienced with office visit, established patient (20-29 min)?
Based on Medicare claims data, Dr. Landrum performed 685 office visit, established patient (20-29 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. Landrum receive payments from pharmaceutical companies?
Yes. Dr. Landrum received a total of $3,301 from 29 companies across 261 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. Landrum's costs compare to other pediatricians in Denison?
Dr. Landrum'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. Landrum) 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 →
Explore related providers
Same specialty & city
Pediatricians in Denison
Browse pediatricians in Denison ranked by procedure volume and transparency data.
Highest volume
Top Pediatricians in TX
Pediatricians ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Pediatricians in TX
Which TX pediatricians receive the most from drug and device companies.
By company
AstraZeneca Pharmaceuticals LP Payments to Doctors
See all physicians who received payments from AstraZeneca Pharmaceuticals LP.
By company
Amgen Inc. Payments to Doctors
See all physicians who received payments from Amgen Inc.
By company
PFIZER INC. Payments to Doctors
See all physicians who received payments from PFIZER INC.
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.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology