Medicare Enrolled
Dr. Ruston Jennings, M.D.
Internal Medicine · Granbury, 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. Jennings 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. Jennings
Dr. Ruston Jennings is an internal medicine specialist in Granbury, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Jennings performed 7,477 Medicare services across 4,935 unique beneficiaries.
Between the years covered by Open Payments, Dr. Jennings received a total of $9,923 from 62 pharmaceutical and/or device companies across 626 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. Jennings 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
$9,923 industry payments
Medicare Practice Summary
Medicare Utilization ↗7,477
Medicare services
Top 4% in TX for internal medicine
4,935
Unique beneficiaries
$29
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~394 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 |
|---|---|---|---|
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
1,056 | $8 | $21 |
| 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. |
885 | $56 | $192 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
826 | $10 | $40 |
| 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. |
729 | $8 | $34 |
| 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. |
726 | $82 | $283 |
| Lipid panel (cholesterol and triglycerides) A blood test that measures cholesterol and triglyceride levels. |
608 | $13 | $102 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
295 | $9 | $62 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
237 | $16 | $68 |
| Free thyroxine (T4) test A blood test that measures the level of free thyroxine, a thyroid hormone, in the bloodstream. |
221 | $9 | $38 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
213 | $126 | $299 |
| 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. |
180 | $4 | $42 |
| 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. |
175 | $9 | $36 |
| Anticoagulant management for warfarin Management of anticoagulant therapy for a patient taking warfarin. This service involves monitoring and adjusting the medication regimen. |
150 | $7 | $32 |
| PSA test (prostate cancer screening) A blood test that measures the level of prostate-specific antigen to screen for prostate cancer. |
136 | $19 | $70 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
95 | $131 | $381 |
| Influenza virus detection test A laboratory test that uses an immunoassay technique to detect the presence of the influenza virus through direct visual observation. |
83 | $16 | $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. |
82 | $6 | $20 |
| Vitamin D level test A blood test to measure the amount of Vitamin D-3 in your body. |
56 | $29 | $110 |
| COVID-19 immunoassay detection test A laboratory test that uses an immunoassay method to detect the presence of severe acute respiratory syndrome coronavirus 2 (COVID-19) through direct visual observation. |
53 | $41 | $130 |
| 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. |
52 | $4 | $20 |
| Methylprednisolone acetate injection, 80 mg An injection of 80 mg of methylprednisolone acetate, a corticosteroid medication. |
51 | $7 | $48 |
| 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. |
47 | $9 | $102 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
40 | $15 | $62 |
| 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. |
40 | $31 | $203 |
| Basic metabolic blood panel A blood test that measures a group of basic chemicals, including total calcium levels. |
39 | $8 | $34 |
| 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. |
35 | $36 | $114 |
| 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. |
34 | $162 | $449 |
| 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. |
33 | $2 | $36 |
| Urinalysis with microscopic exam A urine test performed manually that includes examining the sample under a microscope to check for abnormalities. |
32 | $3 | $13 |
| 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. |
32 | $102 | $438 |
| 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. |
32 | $41 | $203 |
| PSA test (prostate cancer screening) | 31 | $18 | $73 |
| Total testosterone level test A blood test that measures the total amount of testosterone in your body. This hormone is important for various bodily functions in both men and women. |
30 | $25 | $103 |
| Annual alcohol misuse screening, 5 to 15 minutes | 23 | $18 | $47 |
| Iron level test | 21 | $6 | $26 |
| Parathyroid hormone level test A blood test that measures the amount of parathyroid hormone in your body. This hormone helps regulate calcium levels in the blood and bones. |
20 | $40 | $164 |
| Annual depression screening | 19 | $18 | $47 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
18 | $13 | $56 |
| Respiratory virus detection test A laboratory test using immunoassay techniques to detect the presence of severe acute respiratory syndrome coronavirus and influenza viruses. |
15 | $44 | $150 |
| 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. |
15 | $65 | $283 |
| Free T3 thyroid hormone test A blood test that measures the level of free triiodothyronine (T3) hormone in your body. This helps assess how well your thyroid gland is functioning. |
12 | $17 | $68 |
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 ↗$9,923
Total received (2018-2024)
Avg $1,418/year across 7 years
Top 9% in TX for internal medicine
62
Companies
626
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
$9,634 (97.1%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$289 (2.9%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$969
2023
$1,223
2022
$1,350
2021
$1,471
2020
$1,297
2019
$1,517
2018
$2,096
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Novo Nordisk Inc
$775
Boehringer Ingelheim Pharmaceuticals, Inc.
$751
Amarin Pharma Inc.
$724
AstraZeneca Pharmaceuticals LP
$685
Merck Sharp & Dohme Corporation
$489
Lilly USA, LLC
$419
PFIZER INC.
$410
Astellas Pharma US Inc
$402
Novartis Pharmaceuticals Corporation
$372
GlaxoSmithKline, LLC.
$363
AbbVie Inc.
$324
ABBVIE INC.
$322
SANOFI-AVENTIS U.S. LLC
$315
Abbott Laboratories
$296
Janssen Pharmaceuticals, Inc
$260
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$238
Allergan, Inc.
$213
Amgen Inc.
$206
Exact Sciences Corporation
$159
Dexcom, Inc.
$148
Mylan Specialty L.P.
$139
E.R. Squibb & Sons, L.L.C.
$135
Allergan Inc.
$128
Merck Sharp & Dohme LLC
$117
Esperion Therapeutics, Inc.
$114
Takeda Pharmaceuticals U.S.A., Inc.
$113
Ethicon US, LLC
$113
Radius Health, Inc.
$111
Otsuka America Pharmaceutical, Inc.
$91
Sunovion Pharmaceuticals Inc.
$62
Bayer HealthCare Pharmaceuticals Inc.
$62
Avanir Pharmaceuticals, Inc.
$60
UCB, Inc.
$56
Biogen, Inc.
$55
Alfasigma USA, Inc.
$54
Kowa Pharmaceuticals America, Inc.
$49
Eisai Inc.
$42
Biohaven Pharmaceutical Holding Company Ltd.
$36
Nevro Corp.
$35
Boston Scientific Corporation
$35
AbbVie, Inc.
$34
Ironwood Pharmaceuticals, Inc
$30
Nestle HealthCare Nutrition Inc.
$28
Corcept Therapeutics
$25
Shield Therapeutics Inc
$24
Sumitomo Pharma America, Inc.
$24
EISAI INC.
$24
Teva Pharmaceuticals USA, Inc.
$23
Corium, LLC
$22
Phathom Pharmaceuticals, Inc.
$22
BOSTON SCIENTIFIC CORPORATION
$21
Bayer Healthcare Pharmaceuticals Inc.
$20
AIMMUNE THERAPEUTICS, INC.
$19
IDORSIA PHARMACEUTICALS US INC
$18
ITI, Inc.
$17
NESTLE HEALTHCARE NUTRITION INC.
$17
Paratek Pharmaceuticals, Inc.
$17
IRONWOOD PHARMACEUTICALS, INC
$14
IBSA Pharma Inc.
$14
VistaPharm, Inc.
$14
Aytu BioScience, Inc
$13
Biohaven Pharmaceuticals, Inc.
$13
Top 3 companies account for 22.7% of total payments
Associated products mentioned in payments ›
ACCRUFER · ADLARITY · ADUHELM · ANORO · ANORO ELLIPTA · AREXVY · Aduhelm · Aimovig · Austedo XR · BELSOMRA · BEVESPI AEROSPHERE · BREO · BREZTRI · BYDUREON · BYSTOLIC · BYVALSON · Briviact · CAPLYTA · CREON · Cologuard Collection Kit · DIFICID · DUZALLO · Dayvigo · Dexcom G6 Transmitter · Dymista · ELIQUIS · ENTRESTO · EUCRISA · EVENITY · FARXIGA · FASENRA · FREESTYLE LIBRE · FREESTYLE LIBRE 2 · FREESTYLE LIBRE 3 · FreeStyle Libre · GEMTESA · INVOKANA · JANUVIA · JARDIANCE · Kerendia · Korlym · LEQVIO · LINX Reflux Management System · LINZESS · LONHALA MAGNAIR · LYRICA · Linzess · Livalo · MOUNJARO · MYRBETRIQ · Myrbetriq · NEXLETOL · NURTEC ODT · NUZYRA · Natesto · Nuedexta · Omnia · Otezla · Ozempic · PAXLOVID · PNEUMOVAX 23 · PREMARIN · PREVNAR - 13 · PREVNAR 20 · PROCLAIM · Prolia · QULIPTA · QUVIVIQ · RELISTOR · REXULTI · RYBELSUS · Repatha · Rybelsus · SHINGRIX · SOLIQUA 100/33 · SPIRIVA RESPIMAT · STEGLATRO · STIOLTO RESPIMAT · SYMBICORT · SYNTHROID · Senza · Synthroid · TOUJEO · TRELEGY ELLIPTA · TRINTELLIX · TRULANCE · TRULICITY · Thyquidity · Tirosint · Tresiba · Trintellix · Tymlos · UBRELVY · Utibron · VESICARE · VIBERZI · VOQUEZNA · VRAYLAR · Vascepa · Victoza · Vimpat · WATCHMAN · WATCHMAN Access System · XARELTO · XIFAXAN · YUPELRI · ZENPEP · ZOSTAVAX · Zelnorm
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 (97%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 9% for internal medicine in TX.
Equivalent to $133 per 100 Medicare services performed
Geographic Context
Internal medicine physicians within 10 mi
47
Per 100K population
73.2
County median income
$86,802
Nearest hospital
LAKE GRANBURY 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. Jennings is a clinical cardiology specialist, with above-average Medicare volume (top 4% in TX), with low-engagement industry engagement in the top 9% 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. Jennings experienced with blood draw (venipuncture)?
Based on Medicare claims data, Dr. Jennings performed 1,056 blood draw (venipuncture) 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. Jennings receive payments from pharmaceutical companies?
Yes. Dr. Jennings received a total of $9,923 from 62 companies across 626 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. Jennings's costs compare to other internal medicine physicians in Granbury?
Dr. Jennings's average Medicare payment per service is $29. 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. Jennings) 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 →
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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.
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