Medicare Enrolled
Dr. Treise Tomlinson-Chesnut, M.D.
Internal Medicine · Newbury Park, CA
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. Tomlinson-Chesnut 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. Tomlinson-Chesnut
Dr. Treise Tomlinson-Chesnut is an internal medicine specialist in Newbury Park, CA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Tomlinson-Chesnut performed 1,725 Medicare services across 1,553 unique beneficiaries.
Between the years covered by Open Payments, Dr. Tomlinson-Chesnut received a total of $17,572 from 58 pharmaceutical and/or device companies across 994 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. Tomlinson-Chesnut 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.
✓ 20 years in practice
▲ Top 19% volume in CA
$17,572 industry payments
Medicare Practice Summary
Medicare Utilization ↗1,725
Medicare services
Top 19% in CA for internal medicine
1,553
Unique beneficiaries
$65
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~86 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 |
|---|---|---|---|
| Annual alcohol misuse screening, 5 to 15 minutes | 218 | $20 | $30 |
| 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. |
210 | $89 | $165 |
| 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. |
208 | $11 | $35 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
201 | $139 | $161 |
| Annual depression screening | 201 | $20 | $40 |
| 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. |
181 | $135 | $225 |
| 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. |
150 | $59 | $120 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
81 | $33 | $45 |
| 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. |
65 | $72 | $75 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
30 | $17 | $50 |
| Ear wax removal A procedure to remove impacted ear wax from the ear canal. |
28 | $38 | $76 |
| Pneumonia vaccine administration This procedure involves the injection of a vaccine to protect against pneumococcal disease. It is administered by a healthcare provider. |
25 | $33 | $36 |
| Stool test for blood to screen for colon tumors A test that analyzes a stool sample to detect hidden blood, which is used to screen for colon tumors. |
24 | $4 | $10 |
| 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. |
24 | $176 | $238 |
| 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. |
22 | $75 | $140 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
16 | $3 | $5 |
| 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. |
16 | $239 | $333 |
| Flu vaccine, quadrivalent A flu shot containing four strains of the influenza virus to help prevent seasonal influenza infection. |
14 | $74 | $90 |
| Pneumococcal vaccine, 23-valent A vaccine that protects against 23 types of pneumococcal bacteria. It is used to prevent infections caused by these bacteria. |
11 | $131 | $200 |
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 ↗$17,572
Total received (2018-2024)
Avg $2,510/year across 7 years
Top 6% in CA for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
58
Companies
994
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
$17,510 (99.7%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$61 (0.3%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,853
2023
$2,636
2022
$2,156
2021
$2,842
2020
$1,679
2019
$2,200
2018
$3,206
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
ABBVIE INC.
$533
Lilly USA, LLC
$370
Amgen Inc.
$351
AstraZeneca Pharmaceuticals LP
$254
Novo Nordisk Inc
$170
Novartis Pharmaceuticals Corporation
$161
Radius Health, Inc.
$155
PFIZER INC.
$146
Bayer Healthcare Pharmaceuticals Inc.
$116
GlaxoSmithKline, LLC.
$113
Abbott Laboratories
$104
Takeda Pharmaceuticals U.S.A., Inc.
$84
Merck Sharp & Dohme LLC
$55
IDORSIA PHARMACEUTICALS US INC
$55
Boehringer Ingelheim Pharmaceuticals, Inc.
$53
Currax Pharmaceuticals LLC
$43
MILLICENT US INC
$42
Astellas Pharma US Inc
$31
Esperion Therapeutics, Inc.
$15
Top 3 companies account for 44.0% of 2024 payments
All-time payments by company (2018-2024) ›
Amgen Inc.
$2,598
Novo Nordisk Inc
$1,757
Lilly USA, LLC
$1,356
AstraZeneca Pharmaceuticals LP
$1,226
Boehringer Ingelheim Pharmaceuticals, Inc.
$1,016
ABBVIE INC.
$990
AbbVie Inc.
$972
Takeda Pharmaceuticals U.S.A., Inc.
$843
GlaxoSmithKline, LLC.
$501
Radius Health, Inc.
$406
Merck Sharp & Dohme Corporation
$394
Novartis Pharmaceuticals Corporation
$391
Amarin Pharma Inc.
$355
Kowa Pharmaceuticals America, Inc.
$327
Bayer Healthcare Pharmaceuticals Inc.
$304
Allergan Inc.
$289
PFIZER INC.
$257
ARBOR PHARMACEUTICALS, INC.
$242
Janssen Pharmaceuticals, Inc
$231
Abbott Laboratories
$215
Bayer HealthCare Pharmaceuticals Inc.
$186
AbbVie, Inc.
$179
IDORSIA PHARMACEUTICALS US INC
$177
Merck Sharp & Dohme LLC
$173
SANOFI-AVENTIS U.S. LLC
$164
Biohaven Pharmaceuticals, Inc.
$158
Currax Pharmaceuticals LLC
$156
Teva Pharmaceuticals USA, Inc.
$133
Eisai Inc.
$133
Allergan, Inc.
$122
Synergy Pharmaceuticals Inc
$105
EISAI INC.
$93
Esperion Therapeutics, Inc.
$90
Astellas Pharma US Inc
$85
Biohaven Pharmaceutical Holding Company Ltd.
$82
MAYNE PHARMA COMMERCIAL LLC
$82
Duchesnay USA Incorporated
$78
Lundbeck LLC
$71
BioTissue Holdings, Inc.
$66
Shield Therapeutics Inc
$65
AMAG Pharmaceuticals, Inc.
$61
TherapeuticsMD, Inc.
$58
Arbor Pharmaceuticals, Inc.
$51
MILLICENT US INC
$42
Exact Sciences Corporation
$33
Egalet US Inc
$33
IBSA Pharma Inc.
$25
Azurity Pharmaceuticals, Inc.
$23
Almatica Pharma LLC
$22
Sanofi Pasteur Inc.
$22
SANOFI PASTEUR INC.
$20
Otsuka America Pharmaceutical, Inc.
$19
Hologic, LLC
$18
Avanir Pharmaceuticals, Inc.
$17
Boston Scientific Corporation
$15
Horizon Therapeutics plc
$15
Vertiflex, Inc.
$13
Endogastric Solutions, Inc
$13
Top 3 companies account for 32.5% of all-time payments
Associated products mentioned in payments ›
ACCRUFER · AIRSUPRA · AJOVY · ANNOVERA · AREXVY · Aimovig · Amitiza · Androgel · BASAGLAR · BELSOMRA · BREZTRI · BRINTELLIX · BYDUREON · BYSTOLIC · BYVALSON · Belviq · CAPVAXIVE · COLOGUARD · CONTRAVE · Cologuard Collection Kit · Dayvigo · EMGALITY · ENTRESTO · ESOPHYX · EVENITY · Edarbi · Edarbyclor · FARXIGA · FEMRING · FLULAVAL QUADRIVALENT · FLUZONE HIGH-DOSE · FREESTYLE LIBRE 2 · FREESTYLE LIBRE 3 · GARDASIL · GARDASIL 9 · GRALISE · Horizant · IMVEXXY · INTRAROSA · INVOKANA · JANUVIA · JARDIANCE · Kerendia · LEQVIO · LINZESS · LYRICA · Levemir · Livalo · MOTEGRITY · MOUNJARO · MYRBETRIQ · Motegrity · NEOX · NEXLETOL · NEXLIZET · NUEDEXTA · NURTEC ODT · Osphena · Otezla · Ozempic · PENNSAID · PNEUMOVAX 23 · PREMARIN · PREVNAR 20 · Proclaim IPG · Prolia · QULIPTA · QUVIVIQ · REXULTI · RYBELSUS · Repatha · Rybelsus · SHINGRIX · SOLIQUA · SOLIQUA 100/33 · SPIRIVA RESPIMAT · SPRIX · STIOLTO RESPIMAT · SUPERION · SYMBICORT · SYNJARDY · SYNTHROID · Saxenda · Superion ISS · Synthroid · THINPREP 2000 PROCESSOR · TOUJEO · TRADJENTA · TRELEGY ELLIPTA · TRINTELLIX · TRULICITY · Tirosint · Tresiba · Trintellix · Trulance · Tymlos · UBRELVY · VIBERZI · VIIBRYD · VRAYLAR · Vascepa · Veozah · Victoza · Wegovy · XARELTO · ZENPEP · ZEPBOUND · ZOSTAVAX
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 6% for internal medicine in CA.
Geographic Context
Internal medicine physicians within 10 mi
602
Per 100K population
71.8
County median income
$107,327
Nearest hospital
LOS ROBLES HOSPITAL & MEDICAL CENTER
5.0 mi
5.0 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 reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Tomlinson-Chesnut is a clinical cardiology specialist, with above-average Medicare volume (top 19% in CA), with low-engagement industry engagement in the top 6% of CA peers, with 20 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. Tomlinson-Chesnut experienced with annual alcohol misuse screening, 5 to 15 minutes?
Based on Medicare claims data, Dr. Tomlinson-Chesnut performed 218 annual alcohol misuse screening, 5 to 15 minutes 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. Tomlinson-Chesnut receive payments from pharmaceutical companies?
Yes. Dr. Tomlinson-Chesnut received a total of $17,572 from 58 companies across 994 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. Tomlinson-Chesnut's costs compare to other internal medicine physicians in Newbury Park?
Dr. Tomlinson-Chesnut's average Medicare payment per service is $65. 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. Tomlinson-Chesnut) 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. 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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