Dr. John Griffin, MD
What this data tells you about Dr. Griffin
Dr. John Griffin is an internal medicine specialist in Texarkana, TX, with 20 years of NPI registration. Based on federal Medicare data, Dr. Griffin performed 16,218 Medicare services across 7,172 unique beneficiaries.
Between the years covered by Open Payments, Dr. Griffin received a total of $3,185 from 33 pharmaceutical and/or device companies across 178 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in internal medicine. 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. Griffin 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 |
|---|---|---|---|
| Denosumab injection (Prolia/Xgeva) | 4,140 | $18 | $25 |
| Blood draw (venipuncture) | 1,388 | $8 | $20 |
| Comprehensive metabolic blood panel | 1,179 | $10 | $105 |
| Urinalysis with microscopic exam | 1,150 | $3 | $28 |
| Office visit, established patient (30-39 min) | 1,130 | $79 | $245 |
| Lipid panel (cholesterol and triglycerides) | 1,001 | $13 | $90 |
| Complete blood count (CBC) with differential | 959 | $8 | $48 |
| Thyroid stimulating hormone (TSH) test | 815 | $16 | $86 |
| Hemoglobin A1c test (diabetes monitoring) | 526 | $9 | $61 |
| Urine microalbumin test (kidney screening) | 509 | $6 | $59 |
| Office visit, established patient (20-29 min) | 383 | $57 | $175 |
| Free thyroxine (T4) test | 340 | $9 | $52 |
| Urine culture, bacterial identification | 202 | $8 | $42 |
| Flu vaccine administration | 161 | $30 | $35 |
| Flu vaccine, high-dose | 160 | $72 | $76 |
| Annual wellness visit, follow-up | 160 | $125 | $220 |
| Drug injection, under skin or into muscle | 158 | $10 | $42 |
| Steroid injection (triamcinolone) | 124 | $1 | $7 |
| Antibiotic sensitivity test | 117 | $8 | $58 |
| Bacterial culture, aerobic | 116 | $8 | $40 |
| EKG interpretation and report | 105 | $6 | $38 |
| Administration of vaccine | 102 | $13 | $48 |
| Prostate cancer screening; prostate specific antigen test (psa) | 92 | $19 | $79 |
| Basic metabolic blood panel | 83 | $8 | $88 |
| Electrocardiogram (EKG), 12-lead | 80 | $10 | $76 |
| Chest X-ray, 2 views | 69 | $14 | $44 |
| Prothrombin time test (blood clotting) | 62 | $4 | $26 |
| Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a | 62 | $27 | $110 |
| Vitamin B-12 level test | 61 | $15 | $70 |
| Injection, zoledronic acid, 1 mg | 60 | $7 | $61 |
| Sed rate test (inflammation marker) | 58 | $3 | $26 |
| Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | 58 | $37 | $155 |
| Dexamethasone injection (steroid) | 52 | $0 | $2 |
| C-reactive protein test (inflammation marker) | 32 | $5 | $23 |
| Transitional care management services for problem of at least moderate complexity | 31 | $158 | $280 |
| Lipase (fat enzyme) level | 30 | $7 | $34 |
| 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 | 27 | $67 | $200 |
| Hepatitis c antibody screening, for individual at high risk and other covered indication(s) | 25 | $45 | $58 |
| Vitamin D level test | 24 | $29 | $250 |
| Transitional care management services for problem of high complexity | 24 | $215 | $395 |
| Folic acid level test | 23 | $14 | $79 |
| Pneumonia vaccine administration | 23 | $30 | $45 |
| Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit | 23 | $161 | $325 |
| Measurement of antibody for rheumatoid arthritis assessment | 22 | $13 | $100 |
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 20 | $47 | $168 |
| Iron level test | 19 | $6 | $39 |
| Transferrin (iron binding protein) level | 19 | $12 | $50 |
| Red blood count, automated test | 19 | $4 | $25 |
| Ferritin level test (iron stores) | 18 | $13 | $52 |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 17 | $281 | $325 |
| Shoulder X-ray, 2+ views | 16 | $16 | $61 |
| Knee X-ray, 3 views | 16 | $19 | $66 |
| Creatine kinase (cardiac enzyme) level, total | 16 | $6 | $29 |
| PSA test (prostate cancer screening) | 15 | $18 | $79 |
| Uric acid level test | 14 | $4 | $24 |
| Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza | 13 | $53 | $100 |
| Detection test by immunoassay technique for clostridium difficile toxins (stool pathogen) | 12 | $12 | $50 |
| Detection test by immunoassay technique for other organism | 12 | $12 | $34 |
| Administration of vaccine, each additional vaccine | 12 | $11 | $25 |
| Office visit, established patient (10-19 min) | 12 | $36 | $110 |
| Thyroxine (thyroid chemical), total | 11 | $7 | $40 |
| Electrocardiogram (ecg) 2-day continuous with review by health care professional | 11 | $13 | $184 |
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 (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
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. Griffin is a mixed practice specialist, with above-average Medicare volume (top 2% in TX), with low-engagement industry engagement, with 20 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
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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.
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