Dr. Martha Barr, FNP-C
What this data tells you about Dr. Barr
Dr. Martha Barr is a nurse practitioner - family in Longview, TX, with 10 years in practice. Based on federal Medicare data, Dr. Barr performed 4,817 Medicare services across 2,955 unique beneficiaries.
Between the years covered by Open Payments, Dr. Barr received a total of $8,684 from 48 pharmaceutical and/or device companies across 549 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in nurse practitioner - family. 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. Barr 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.
Medicare Practice Summary
Medicare Utilization ↗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) | 426 | $69 | $200 |
| Blood draw (venipuncture) | 324 | $8 | $20 |
| Comprehensive metabolic blood panel | 283 | $10 | $105 |
| Chronic care management, first 20 min/month | 275 | $37 | $65 |
| Lipid panel (cholesterol and triglycerides) | 255 | $13 | $66 |
| Complete blood count (CBC) with differential | 220 | $8 | $40 |
| Bilirubin level, direct | 199 | $5 | $26 |
| Dexamethasone injection (steroid) | 198 | $0 | $0 |
| Lactate dehydrogenase (enzyme) level | 194 | $6 | $25 |
| Thyroid stimulating hormone (TSH) test | 190 | $16 | $70 |
| Glutamyltransferase (liver enzyme) level | 168 | $7 | $30 |
| Hemoglobin A1c test (diabetes monitoring) | 153 | $10 | $60 |
| Vitamin D level test | 143 | $29 | $140 |
| Urine microalbumin test (kidney screening) | 132 | $6 | $70 |
| Creatinine test (kidney function) | 131 | $5 | $25 |
| Annual wellness visit, follow-up | 114 | $105 | $130 |
| Office visit, established patient (20-29 min) | 112 | $52 | $135 |
| Automated urinalysis | 100 | $2 | $18 |
| Vitamin B-12 level test | 89 | $15 | $77 |
| Electrocardiogram (EKG), 12-lead | 85 | $8 | $65 |
| Free thyroxine (T4) test | 76 | $9 | $41 |
| Chronic care management, additional 20 min/month | 75 | $31 | $50 |
| Urinalysis with microscopic exam | 74 | $3 | $22 |
| Drug injection, under skin or into muscle | 61 | $8 | $50 |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 56 | $281 | $305 |
| Pneumonia vaccine administration | 56 | $29 | $30 |
| Iron level test | 52 | $6 | $35 |
| Urine culture, bacterial colony count | 51 | $8 | $35 |
| Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow | 48 | $65 | $150 |
| Urinalysis, manual | 46 | $3 | $20 |
| Magnesium level test | 40 | $7 | $24 |
| Flu vaccine administration | 38 | $30 | $31 |
| Flu vaccine, high-dose | 37 | $72 | $85 |
| Prostate cancer screening; prostate specific antigen test (psa) | 35 | $19 | $95 |
| Natriuretic peptide (heart and blood vessel protein) level | 33 | $38 | $110 |
| Antibiotic sensitivity test | 28 | $8 | $40 |
| Injection, methylprednisolone acetate, 80 mg | 25 | $8 | $20 |
| Urine culture, bacterial identification | 21 | $8 | $20 |
| Comprehensive assessment of and care planning for patients requiring chronic care management services (list separately in addition to primary monthly care management service) | 21 | $38 | $75 |
| Ferritin level test (iron stores) | 19 | $13 | $72 |
| New patient office visit (30-44 min) | 18 | $54 | $200 |
| Annual depression screening | 17 | $15 | $20 |
| Iron binding capacity test | 16 | $9 | $40 |
| Transitional care management services for problem of at least moderate complexity | 16 | $125 | $300 |
| Liver function blood test panel | 15 | $8 | $51 |
| Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus | 15 | $35 | $65 |
| Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) | 14 | $16 | $35 |
| Transitional care management services for problem of high complexity | 12 | $181 | $410 |
| Electrocardiogram, routine ecg with 12 leads; performed as a screening for the initial preventive physical examination with interpretation and report | 11 | $6 | $45 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
Associated products mentioned in payments ›
Most payments (99%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 2% for nurse practitioner - family in TX.
Geographic Context
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. Barr is a clinical cardiology specialist, with above-average Medicare volume (top 2% in TX), and high industry engagement (low-engagement, top 2%).
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. Barr experienced with office visit, established patient (30-39 min)?
Does Dr. Barr receive payments from pharmaceutical companies?
How do Dr. Barr's costs compare to other nurse practitioner - familys in Longview?
What does Data Coverage mean?
Is this data up to date?
Explore related providers
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