Medicare Enrolled
Dr. Darryl Demaris, M.D.
Aerospace Medicine Physician · Redding, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Demaris 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 →
Are you Dr. Demaris?
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What this data tells you about Dr. Demaris
Dr. Darryl Demaris is an aerospace medicine physician in Redding, CA, with 11 years of NPI registration. Based on federal Medicare data, Dr. Demaris performed 3,222 Medicare services across 1,610 unique beneficiaries.
Between the years covered by Open Payments, Dr. Demaris received a total of $1,843 from 11 pharmaceutical and/or device companies across 37 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in aerospace medicine physician. 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. Demaris 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.
✓ 11 years in practice
▲ Top 20% volume in CA
$1,843 industry payments
Medicare Practice Summary
Medicare Utilization ↗3,222
Medicare services
Top 20% in CA for aerospace medicine physician
1,610
Unique beneficiaries
$18
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~293 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 |
|---|---|---|---|
| Contrast dye for imaging (iodine-based) A contrast agent containing 300-399 mg/ml of iodine used to enhance imaging studies. It is administered per milliliter to improve the visibility of internal structures. |
1,500 | $0 | $2 |
| Chest X-ray, 1 view An X-ray image of the chest taken from a single angle. This imaging test is used to visualize the structures within the chest cavity. |
523 | $7 | $30 |
| 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. |
165 | $21 | $52 |
| 3D screening mammography (tomosynthesis) A screening imaging test of the breast using 3D technology to detect potential abnormalities. |
75 | $49 | $99 |
| Screening mammography An X-ray of the breast used to detect breast cancer in women who have no signs or symptoms of the disease. |
74 | $114 | $289 |
| CT scan of chest with contrast A computed tomography scan of the chest using a contrast dye to enhance the visibility of internal structures. |
61 | $40 | $187 |
| Radiologist review of CT-guided needle placement A radiologist reviews the CT imaging used to guide the placement of a needle. |
45 | $53 | $185 |
| Ultrasound of head and neck soft tissue This procedure uses sound waves to create images of the soft tissues in the head and neck area. It allows for the visualization of structures beneath the skin without using radiation. |
43 | $73 | $203 |
| Abdominal fluid drainage with imaging guidance Removal of fluid from the abdominal cavity using imaging technology to guide the procedure. |
36 | $82 | $766 |
| CT scan of chest blood vessels with contrast A CT scan that uses contrast dye to create detailed images of the blood vessels in the chest. |
35 | $62 | $248 |
| CT scan of upper spine, without contrast A CT scan uses X-rays to create detailed images of the upper spine. This procedure is performed without the use of contrast dye. |
34 | $34 | $188 |
| Limited retroperitoneal ultrasound A focused ultrasound exam of the area behind the abdominal cavity to evaluate specific structures. |
29 | $41 | $208 |
| Digital breast tomosynthesis (3D mammogram) A specialized imaging test that creates three-dimensional pictures of the breast tissue to help detect abnormalities. |
26 | $39 | $101 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
25 | $9 | $79 |
| X-ray of lower and sacral spine, 2-3 views An X-ray imaging test that captures 2 to 3 views of the lower back and sacral spine to visualize the bones and joints in this area. |
24 | $14 | $46 |
| Abdominal X-ray, 2 views An X-ray imaging test of the abdomen using two different angles to visualize internal structures. |
24 | $8 | $31 |
| Low dose CT scan of chest for lung cancer screening A specialized CT scan of the chest using a lower radiation dose to screen for lung cancer. |
23 | $97 | $214 |
| Ultrasound-guided fine needle aspiration biopsy, first lesion A biopsy procedure where a thin needle is used to collect tissue samples from a growth, guided by ultrasound imaging. This code applies to the first lesion or mass sampled during the session. |
22 | $57 | $310 |
| Ankle X-ray, minimum 3 views An X-ray imaging test of the ankle that captures at least three different angles to evaluate the bones and joints. |
21 | $6 | $24 |
| Abdominal X-ray, 1 view An X-ray image of the abdomen taken from a single angle to visualize internal structures. |
21 | $14 | $38 |
| Limited abdominal ultrasound A focused ultrasound examination of the abdomen to evaluate specific organs or areas. This procedure uses sound waves to create images of internal structures. |
21 | $43 | $149 |
| X-ray of thigh bone, minimum 2 views An X-ray imaging test of the thigh bone using at least two different angles to visualize the bone structure. |
20 | $7 | $25 |
| X-ray of hand, minimum of 3 views An X-ray imaging test of the hand that captures at least three different angles to visualize the bones and joints. |
19 | $12 | $43 |
| Foot X-ray, 3+ views An X-ray imaging test of the foot that captures at least three different views to evaluate the bones and joints. |
19 | $12 | $39 |
| Hip X-ray, 2-3 views An X-ray imaging test of the hip joint using two to three different angles to visualize the bones and surrounding structures. |
18 | $26 | $59 |
| Complete ultrasound of retroperitoneum An ultrasound examination of the structures located behind the abdominal cavity. |
18 | $23 | $95 |
| CT scan of chest, without contrast A computed tomography scan of the chest area that uses X-rays to create detailed images without the use of contrast dye. |
17 | $70 | $403 |
| 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. |
17 | $17 | $47 |
| Diagnostic mammography of both breasts | 17 | $112 | $383 |
| Biopsy of bone marrow | 16 | $54 | $414 |
| Wrist X-ray, minimum 3 views An imaging test using X-rays to capture at least three different angles of the wrist bones and joints. |
16 | $7 | $26 |
| CT scan of abdomen and pelvis with contrast A CT scan of the abdomen and pelvis using contrast dye before and after administration to visualize internal structures. |
16 | $155 | $533 |
| 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. |
15 | $9 | $27 |
| Ultrasound of arm or leg veins An ultrasound exam of the veins in one arm or leg using compression and other maneuvers to assess blood flow and check for blockages. |
15 | $16 | $184 |
| Knee X-ray, 1-2 views An X-ray imaging test of the knee joint using one to two different angles to visualize the bones and surrounding structures. |
14 | $17 | $51 |
| CT scan of abdomen and pelvis with contrast A CT scan that uses dye to create detailed images of the abdomen and pelvis. This imaging test helps doctors examine internal organs and structures in these areas. |
14 | $127 | $412 |
| Swallowing function imaging Imaging used to evaluate how well a person can swallow. This procedure visualizes the swallowing process to assess function. |
14 | $20 | $60 |
| Liver needle biopsy through skin A procedure in which a needle is inserted through the skin to remove a small sample of liver tissue for examination. |
13 | $63 | $485 |
| CT scan of face, without contrast A computed tomography scan that creates detailed images of the facial structures. This procedure is performed without the use of intravenous contrast dye. |
13 | $31 | $161 |
| Knee X-ray, 4 or more views An imaging test using X-rays to create multiple pictures of the knee joint from different angles. |
13 | $20 | $64 |
| CT scan of abdomen and pelvis, without contrast A computed tomography scan that creates detailed images of the abdominal and pelvic organs. The procedure is performed without the use of intravenous contrast dye. |
13 | $107 | $481 |
| CT scan of lower spine, without contrast A computed tomography scan that creates detailed images of the lower spine using X-rays without the use of contrast dye. |
12 | $36 | $176 |
| CT scan of head/brain, without contrast A CT scan uses X-rays to create detailed images of the head or brain without the use of contrast dye. |
11 | $67 | $426 |
| X-ray of middle spine, 2 views An X-ray imaging test that produces two views of the middle section of the spine to visualize the bones and joints. |
11 | $8 | $30 |
| X-ray of lower and sacral spine, minimum of 4 views An X-ray imaging test of the lower back and sacrum using at least four different angles to visualize the bones and joints. |
11 | $7 | $47 |
| X-ray of upper arm, minimum of 2 views An X-ray imaging test of the upper arm that captures at least two different views to evaluate the bones and surrounding structures. |
11 | $6 | $30 |
| Limited ultrasound of 1 breast A focused ultrasound examination of a single breast to evaluate specific areas of concern. |
11 | $63 | $244 |
| Ultrasound of abdomen and pelvis blood flow An ultrasound exam that uses sound waves to visualize and assess blood flow through the arteries and veins in the abdomen and pelvis. |
11 | $30 | $122 |
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 ↗$1,843
Total received (2018-2024)
Avg $307/year across 6 years
Top 0% in CA for aerospace medicine physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
11
Companies
37
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
$1,843 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$597
2023
$550
2022
$239
2021
$209
2019
$123
2018
$124
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Sirtex Medical Inc
$223
Inari Medical, Inc.
$221
Becton, Dickinson and Company
$135
Boston Scientific Corporation
$17
Top 3 companies account for 97.2% of 2024 payments
All-time payments by company (2018-2024) ›
Inari Medical, Inc.
$932
Sirtex Medical Inc
$223
Boston Scientific Corporation
$153
Becton, Dickinson and Company
$135
Cook Medical LLC
$132
Cook Incorporated
$115
Stryker Corporation
$68
Medtronic, Inc.
$28
AngioDynamics, Inc.
$21
Penumbra, Inc.
$20
Cardiovascular Systems Inc.
$16
Top 3 companies account for 71.0% of all-time payments
Associated products mentioned in payments ›
COOK MEDICAL EMBOLIZATION · COOK MEDICAL INTERVENTIONAL RADIOLOGY · COVERA · CT THROMBECTOMY SYSTEM KIT · Cook Medical Filters · Diamondback Peripheral · EkoSonic · FLOWTRIEVER CATHETER · IN.PACT ADMIRAL · LAVA LES (Liquid Embolic System) · OBSIDIO · S · SPINEJACK · Smart Coil · Solero · Visi-Pro
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 0% for aerospace medicine physician in CA.
Geographic Context
Aerospace medicine physicians within 10 mi
1
Per 100K population
0.6
County median income
$71,931
Nearest hospital
MERCY MEDICAL CENTER REDDING
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 reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Demaris is a mixed practice specialist, with above-average Medicare volume (top 20% in CA), with low-engagement industry engagement in the top 0% of CA peers.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Demaris experienced with contrast dye for imaging (iodine-based)?
Based on Medicare claims data, Dr. Demaris performed 1,500 contrast dye for imaging (iodine-based) 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. Demaris receive payments from pharmaceutical companies?
Yes. Dr. Demaris received a total of $1,843 from 11 companies across 37 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. Demaris's costs compare to other aerospace medicine physicians in Redding?
Dr. Demaris's average Medicare payment per service is $18. 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. Demaris) 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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