Medicare Enrolled
Dr. John Griffin, MD
Internal Medicine · Texarkana, TX
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Griffin 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. Griffin
Dr. John Griffin is an internal medicine specialist in Texarkana, TX, with 21 years of NPI registration. Based on federal Medicare data, Dr. Griffin performed 16,218 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Griffin received a total of $3,185 from 33 pharmaceutical and/or device companies across 178 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. Griffin 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.
✓ 21 years of NPI registration
▲ Top 2% volume in TX
$3,185 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗16,218
Medicare services
Top 2% in TX for internal medicine
Not available
Unique patients (not deduplicated)
$21
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 |
|---|---|---|---|
| Denosumab injection (Prolia/Xgeva) | 4,140 | $18 | $25 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
1,388 | $8 | $20 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
1,179 | $10 | $105 |
| Urinalysis with microscopic exam A urine test performed manually that includes examining the sample under a microscope to check for abnormalities. |
1,150 | $3 | $28 |
| 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. |
1,130 | $79 | $245 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
1,001 | $13 | $90 |
| 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. |
959 | $8 | $48 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
815 | $16 | $86 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
526 | $9 | $61 |
| Urine microalbumin test (kidney screening) A laboratory test that measures the amount of microalbumin, a small protein, in a urine sample. This test is used to detect early signs of kidney damage. |
509 | $6 | $59 |
| 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. |
383 | $57 | $175 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
340 | $9 | $52 |
| Urine culture, bacterial identification A laboratory test that grows and identifies bacteria from a urine sample to detect infections. |
202 | $8 | $42 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
161 | $30 | $35 |
| 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. |
160 | $72 | $76 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
160 | $125 | $220 |
| 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. |
158 | $10 | $42 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
124 | $1 | $7 |
| Antibiotic sensitivity test A laboratory test that determines which antibiotics, antifungals, or antivirals are effective against a specific microorganism using microdilution or agar dilution methods. |
117 | $8 | $58 |
| Bacterial culture, aerobic A laboratory test that grows and identifies bacteria capable of surviving in oxygen. The results help determine the presence of specific aerobic microorganisms. |
116 | $8 | $40 |
| EKG interpretation and report A standard electrocardiogram test that records the heart's electrical activity using at least 12 leads. The service includes a professional interpretation of the results and a written report. |
105 | $6 | $38 |
| Vaccine administration The process of giving a vaccine to a patient. This code covers the administration service only and does not include the cost of the vaccine itself. |
102 | $13 | $48 |
| PSA test (prostate cancer screening) A blood test that measures the level of prostate-specific antigen to screen for prostate cancer. |
92 | $19 | $79 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
83 | $8 | $88 |
| 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. |
80 | $10 | $76 |
| 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. |
69 | $14 | $44 |
| Prothrombin time test (blood clotting) A laboratory test that measures how long it takes for blood to clot. This procedure evaluates the body's coagulation process. |
62 | $4 | $26 |
| 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. |
62 | $27 | $110 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
61 | $15 | $70 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
60 | $7 | $61 |
| Sed rate test (inflammation marker) This automated test measures how quickly red blood cells settle in a tube to detect inflammation in the body. |
58 | $3 | $26 |
| 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. |
58 | $37 | $155 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
52 | $0 | $2 |
| C-reactive protein test (inflammation marker) A blood test that measures the level of C-reactive protein to detect the presence of infection or inflammation in the body. |
32 | $5 | $23 |
| Transitional care management services, moderate complexity Services provided to coordinate care during the transition from an inpatient or other facility setting back to the community. This includes follow-up and management of a health problem of at least moderate complexity. |
31 | $158 | $280 |
| Lipase level test A blood test that measures the amount of lipase, a fat-digesting enzyme, in your body. |
30 | $7 | $34 |
| Home health agency supervision, complex multidisciplinary care Supervision by a physician or allowed practitioner for a patient receiving Medicare-covered services from a participating home health agency. This involves complex and multidisciplinary care modalities, with the patient not present during the supervision. |
27 | $67 | $200 |
| Hepatitis C antibody screening A blood test to check for antibodies indicating a Hepatitis C infection. This screening is performed for individuals at high risk or those with other covered indications. |
25 | $45 | $58 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
24 | $29 | $250 |
| 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. |
24 | $215 | $395 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
23 | $14 | $79 |
| Pneumonia vaccine administration This procedure involves the injection of a vaccine to protect against pneumococcal disease. It is administered by a healthcare provider. |
23 | $30 | $45 |
| Annual wellness visit, initial visit A yearly appointment to review your health and create a personalized prevention plan. This initial visit focuses on preventive care and health assessment. |
23 | $161 | $325 |
| Rheumatoid arthritis antibody test A blood test to measure antibodies used in assessing rheumatoid arthritis. |
22 | $13 | $100 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
20 | $47 | $168 |
| Iron level test | 19 | $6 | $39 |
| Transferrin level test A blood test that measures the amount of transferrin, a protein that binds to and transports iron in the body. |
19 | $12 | $50 |
| Automated red blood cell count An automated laboratory test that measures the number of red blood cells in a blood sample. |
19 | $4 | $25 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
18 | $13 | $52 |
| Pneumococcal conjugate vaccine (PCV20) An intramuscular injection of the 20-valent pneumococcal conjugate vaccine. It is used to protect against diseases caused by Streptococcus pneumoniae bacteria. |
17 | $281 | $325 |
| Shoulder X-ray, 2+ views An X-ray imaging test of the shoulder joint using at least two different angles to visualize the bones and surrounding structures. |
16 | $16 | $61 |
| Knee X-ray, 3 views An X-ray imaging test of the knee joint that captures three different angles to evaluate the bones and surrounding structures. |
16 | $19 | $66 |
| Cardiac enzyme level (CK-MB) test A blood test that measures the total level of creatine kinase, specifically the cardiac enzyme fraction, to help evaluate heart muscle damage. |
16 | $6 | $29 |
| PSA test (prostate cancer screening) | 15 | $18 | $79 |
| 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. |
14 | $4 | $24 |
| Respiratory virus detection test A laboratory test using immunoassay techniques to detect the presence of severe acute respiratory syndrome coronavirus and influenza viruses. |
13 | $53 | $100 |
| Clostridium difficile toxin test A stool test that uses an immunoassay technique to detect toxins produced by the Clostridium difficile bacteria. |
12 | $12 | $50 |
| Immunoassay test for other organisms A laboratory test using immunoassay techniques to detect the presence of specific organisms. |
12 | $12 | $34 |
| Additional vaccine administration This code covers the administration of each additional vaccine given during the same encounter. It is billed alongside the primary vaccine administration code. |
12 | $11 | $25 |
| 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. |
12 | $36 | $110 |
| Thyroxine (T4) level test A blood test that measures the total amount of thyroxine, a thyroid hormone, in your body. |
11 | $7 | $40 |
| 2-day continuous ECG with professional review A two-day continuous electrocardiogram recording that includes a review by a healthcare professional. |
11 | $13 | $184 |
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.
0.1% high complexity
28.0% medium
71.9% routine
Industry Payment Transparency
Open Payments through 2024 ↗$3,185
Total received (2018-2024)
Avg $455/year across 7 years
Top 23% in TX for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
33
Companies
178
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
$663
2023
$675
2022
$449
2021
$429
2020
$64
2019
$347
2018
$559
Payments by company (2024)
MIMEDX Group, Inc.
$179
Novartis Pharmaceuticals Corporation
$91
Boehringer Ingelheim Pharmaceuticals, Inc.
$68
Dexcom, Inc.
$47
Amgen Inc.
$45
E.R. Squibb & Sons, L.L.C.
$42
PFIZER INC.
$39
Lilly USA, LLC
$35
ABBVIE INC.
$35
Boston Scientific Corporation
$21
Abbott Laboratories
$18
Novo Nordisk Inc
$15
GlaxoSmithKline, LLC.
$15
Astellas Pharma US Inc
$14
Top 3 companies account for 50.9% of 2024 payments
All-time payments by company (2018-2024) ›
Amgen Inc.
$532
Janssen Pharmaceuticals, Inc
$440
Novartis Pharmaceuticals Corporation
$309
PFIZER INC.
$207
MIMEDX Group, Inc.
$179
AbbVie Inc.
$147
ABBVIE INC.
$126
Allergan Inc.
$124
E.R. Squibb & Sons, L.L.C.
$123
GlaxoSmithKline, LLC.
$121
Abbott Laboratories
$100
Boehringer Ingelheim Pharmaceuticals, Inc.
$96
Lilly USA, LLC
$79
Dexcom, Inc.
$77
SANOFI-AVENTIS U.S. LLC
$72
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$46
Amarin Pharma Inc.
$45
Alnylam Pharmaceuticals Inc.
$41
Novo Nordisk Inc
$40
Allergan, Inc.
$33
Takeda Pharmaceuticals U.S.A., Inc.
$31
Arbor Pharmaceuticals, Inc.
$28
Merck Sharp & Dohme Corporation
$26
Boston Scientific Corporation
$21
Almatica Pharma LLC
$21
Sanofi Pasteur Inc.
$19
Eisai Inc.
$19
Nestle HealthCare Nutrition Inc.
$18
Merck Sharp & Dohme LLC
$14
Astellas Pharma US Inc
$14
Horizon Therapeutics plc
$14
SANOFI PASTEUR INC.
$12
Agios Pharmaceuticals, Inc.
$12
Top 3 companies account for 40.2% of all-time payments
Associated products mentioned in payments ›
Aimovig · Amitiza · BELSOMRA · BYSTOLIC · CAMZYOS · CHANTIX · DIFICID · DUEXIS · Dexcom G6 Transmitter · Dexilant · ELIQUIS · EMGALITY · ENTRESTO · EVENITY · Edarbi · Edarbyclor · FLUBLOK QUADRIVALENT · FLUZONE HIGH-DOSE · FREESTYLE LIBRE · FREESTYLE LIBRE 3 · GLYXAMBI · GRALISE · JARDIANCE · LEQVIO · LINZESS · Leqembi · ONPATTRO · Otezla · Ozempic · PREVNAR 20 · PYRUKYND · Prolia · QULIPTA · Repatha · SHINGRIX · SOLIQUA · SOLIQUA 100/33 · SPIRIVA RESPIMAT · TOUJEO · TRULICITY · Trintellix · UBRELVY · VIAGRA · VRAYLAR · Vascepa · Veozah · Victoza · WATCHMAN FLX · XARELTO · XIFAXAN · ZENPEP
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
40
County median income
$59,295
Nearest hospital to ZIP centroid (approximate)
CHRISTUS ST MICHAEL HEALTH SYSTEM
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. Griffin is a mixed practice specialist, with above-average Medicare volume (top 2% in TX), with 21 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. Griffin experienced with denosumab injection (prolia/xgeva)?
Based on Medicare claims data, Dr. Griffin performed 4,140 denosumab injection (prolia/xgeva) 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. Griffin receive payments from pharmaceutical companies?
Yes. Dr. Griffin received a total of $3,185 from 33 companies across 178 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. Griffin's costs compare to other internal medicine physicians in Texarkana?
Dr. Griffin's average Medicare payment per service is $21. 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. Griffin) 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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