Medicare Enrolled
Dr. Karen Garnaas, MD
Neurology · Redding, CA
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Consulting-driven
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. Garnaas 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. Garnaas
Dr. Karen Garnaas is a neurology specialist in Redding, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Garnaas performed 54,949 Medicare services across 4,044 unique beneficiaries.
Between the years covered by Open Payments, Dr. Garnaas received a total of $22,063 from 63 pharmaceutical and/or device companies across 490 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in neurology. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Garnaas 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.
✓ 19 years in practice
▲ Top 1% volume in CA
$22,063 industry payments
Medicare Practice Summary
Medicare Utilization ↗54,949
Medicare services
Top 1% in CA for neurology
4,044
Unique beneficiaries
$17
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~2,892 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 |
|---|---|---|---|
| Botox injection, per unit An injection of onabotulinumtoxinA, a medication used to temporarily relax muscles or reduce gland activity. The dose is measured in units, with this code representing a single unit administered. |
32,610 | $5 | $18 |
| Botox injection (Xeomin), per unit An injection of incobotulinumtoxin A, a botulinum toxin type A product, administered in a quantity of one unit. |
16,525 | $4 | $15 |
| 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. |
1,429 | $91 | $405 |
| Electromyography of arm or leg muscles A test that measures the electrical activity in the muscles of the arm or leg using a needle electrode. It helps evaluate the health of muscles and the nerve cells that control them. |
1,277 | $80 | $328 |
| 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. |
467 | $64 | $286 |
| 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. |
370 | $115 | $522 |
| Nerve conduction studies, 13 or more A diagnostic test that measures how well nerves send electrical signals. This code applies when 13 or more individual nerve studies are performed. |
346 | $229 | $968 |
| New patient office visit, complex (60-74 min) | 302 | $162 | $687 |
| 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. |
276 | $135 | $564 |
| Bilateral facial and neck nerve muscle paralysis injection Injection of a chemical agent to paralyze muscles in the face and neck on both sides. |
157 | $121 | $468 |
| Nerve conduction studies, 5-6 tests A series of 5 to 6 tests that measure how well nerves send electrical signals. The procedure evaluates nerve function and helps identify damage or dysfunction. |
112 | $109 | $459 |
| EEG, extended monitoring A test that records electrical activity in the brain while the patient is both awake and asleep. |
108 | $370 | $1,473 |
| Injection of anesthetic agent and/or steroid into other nerve or branch | 102 | $79 | $248 |
| Injection of anesthetic or steroid into upper neck and back of head nerve An injection of an anesthetic agent and/or steroid into a nerve located in the upper neck and back of the head. |
99 | $39 | $231 |
| Video EEG monitoring, 12-26 hours A 12 to 26-hour test that records brain wave activity while simultaneously capturing video of the patient's behavior. |
94 | $688 | $2,645 |
| Nerve conduction study, 9-10 studies A diagnostic test that measures how well nerves send electrical signals. It involves performing 9 to 10 separate nerve conduction studies to evaluate nerve function. |
84 | $171 | $722 |
| Awake and drowsy EEG A test that records electrical activity in the brain while the patient is awake and drowsy. |
77 | $315 | $1,227 |
| 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. |
77 | $42 | $177 |
| Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle | 75 | $66 | $269 |
| Prolonged office E/M service, first 15 minutes This code is used for additional time spent by a physician beyond the maximum required time of a primary office or outpatient evaluation and management service. It is billed in 15-minute increments based on total time spent on the date of the primary service. |
49 | $26 | $101 |
| Chemical nerve block for neck muscles Injection of a chemical agent to paralyze specific muscles on the side of the neck, excluding the voice box. |
36 | $155 | $417 |
| Continuous EEG brain wave monitoring A test that records electrical activity in the brain over an extended period. It is used to monitor brain function continuously. |
36 | $219 | $840 |
| Nerve conduction studies, 7-8 tests A series of 7 to 8 nerve conduction tests to evaluate how well nerves are sending signals to muscles. |
34 | $145 | $602 |
| Trigger point injection, 1-2 muscles A procedure involving the injection of medication into one or two specific muscles to treat trigger points. |
33 | $26 | $171 |
| Chemical nerve block injection, 5+ arm/leg muscles Injection of a chemical agent to paralyze five or more muscles in the first extremity treated. |
30 | $134 | $552 |
| Trigger point injection, 3 or more muscles Injection of medication into three or more specific muscle trigger points to relieve pain. |
29 | $33 | $196 |
| Video EEG monitoring, 2-12 hours This procedure records brain wave activity using an electroencephalogram (EEG) while simultaneously capturing video footage for a duration of 2 to 12 hours with intermittent monitoring. |
26 | $370 | $1,420 |
| Needle electromyography of trunk or head muscles A test that uses a needle electrode to measure the electrical activity of muscles in the trunk or head. This helps evaluate muscle and nerve function. |
24 | $70 | $284 |
| 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. |
20 | $12 | $45 |
| Injection of carpal tunnel | 19 | $88 | $253 |
| Nerve conduction studies, 11-12 A diagnostic test that measures how well nerves send electrical signals. It involves performing 11 to 12 separate nerve conduction studies. |
15 | $205 | $834 |
| 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. |
11 | $66 | $350 |
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 ↗$22,063
Total received (2018-2024)
Avg $3,152/year across 7 years
Top 15% in CA for neurology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
63
Companies
490
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.
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$12,106 (54.9%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$9,909 (44.9%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$49 (0.2%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$13,314
2023
$4,399
2022
$2,481
2021
$1,272
2020
$171
2019
$165
2018
$261
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Alexion Pharmaceuticals, Inc.
$10,405
ABBVIE INC.
$401
Neurocrine Biosciences, Inc.
$268
UCB, Inc.
$203
ARGENX US, INC.
$161
PFIZER INC.
$157
Neurelis, Inc.
$148
Merz Pharmaceuticals, LLC
$103
Biogen, Inc.
$99
Novartis Pharmaceuticals Corporation
$93
Mallinckrodt Hospital Products Inc.
$93
ACADIA Pharmaceuticals Inc
$92
MDD US Operations, LLC
$85
CSL Behring
$81
Takeda Pharmaceuticals U.S.A., Inc.
$75
Eisai Inc.
$69
Axsome Therapeutics, Inc.
$64
Ipsen Biopharmaceuticals, Inc
$57
Genentech, Inc.
$53
Lundbeck LLC
$50
MITSUBISHI TANABE PHARMA AMERICA, INC.
$49
NEUROPACE, INC.
$43
EMD Serono, Inc.
$42
Alnylam Pharmaceuticals Inc.
$42
Octapharma USA, Inc.
$37
SK Life Science, Inc.
$29
Teva Pharmaceuticals USA, Inc.
$26
ANI Pharmaceuticals, Inc.
$25
GE HEALTHCARE
$25
Amgen Inc.
$25
Otsuka America Pharmaceutical, Inc.
$23
Genentech USA, Inc.
$23
Kyowa Kirin, Inc.
$22
EDW Pharma, Inc.
$22
Acorda Therapeutics, Inc
$21
Amneal Pharmaceuticals LLC
$20
Resmed Corp
$18
TG Therapeutics, Inc.
$18
Amylyx Pharmaceuticals, Inc.
$16
SCILEX PHARMACEUTICALS INC.
$15
Baxter Healthcare
$13
Top 3 companies account for 83.2% of 2024 payments
All-time payments by company (2018-2024) ›
Alexion Pharmaceuticals, Inc.
$10,612
ARGENX US, INC.
$1,745
ABBVIE INC.
$1,648
LivaNova USA, Inc.
$734
Neurocrine Biosciences, Inc.
$515
Biogen, Inc.
$442
UCB, Inc.
$424
GENZYME CORPORATION
$417
EMD Serono, Inc.
$389
Novartis Pharmaceuticals Corporation
$370
Supernus Pharmaceuticals, Inc.
$326
AbbVie Inc.
$302
ACADIA Pharmaceuticals Inc
$278
Neurelis, Inc.
$256
PFIZER INC.
$220
MITSUBISHI TANABE PHARMA AMERICA, INC.
$208
SK Life Science, Inc.
$208
Merz Pharmaceuticals, LLC
$201
IMPEL PHARMACEUTICALS INC.
$177
Allergan, Inc.
$176
MDD US Operations, LLC
$163
Alnylam Pharmaceuticals Inc.
$159
Takeda Pharmaceuticals U.S.A., Inc.
$149
CSL Behring
$121
Amylyx Pharmaceuticals, Inc.
$119
Mallinckrodt Hospital Products Inc.
$113
Genentech USA, Inc.
$101
Octapharma USA, Inc.
$101
Amneal Pharmaceuticals LLC
$94
Eisai Inc.
$91
ANI Pharmaceuticals, Inc.
$73
Amgen Inc.
$68
Axsome Therapeutics, Inc.
$64
Scilex Pharmaceuticals Inc.
$62
Horizon Therapeutics plc
$58
Otsuka America Pharmaceutical, Inc.
$58
Ipsen Biopharmaceuticals, Inc
$57
Lilly USA, LLC
$56
Genentech, Inc.
$53
Lundbeck LLC
$50
Teva Pharmaceuticals USA, Inc.
$46
CATALYST PHARMACEUTICALS, INC.
$46
GE HEALTHCARE
$44
NEUROPACE, INC.
$43
Baxter Healthcare
$42
TG THERAPEUTICS, INC.
$38
Allergan Inc.
$31
Ceribell, Inc.
$28
Boston Scientific Corporation
$24
GE HealthCare
$23
Kyowa Kirin, Inc.
$22
EDW Pharma, Inc.
$22
Almatica Pharma LLC
$21
Acorda Therapeutics, Inc
$21
Catalyst Pharmaceuticals, Inc.
$20
Biohaven Pharmaceuticals, Inc.
$19
Resmed Corp
$18
TG Therapeutics, Inc.
$18
US WorldMeds, LLC
$17
Philips Electronics North America Corporation
$17
Celgene Corporation
$15
SCILEX PHARMACEUTICALS INC.
$15
EISAI INC.
$13
Top 3 companies account for 63.5% of all-time payments
Associated products mentioned in payments ›
(6299) DreamWear · ACTHAR · ADUHELM · AIMOVIG · AIRSENSE · AJOVY · AMVUTTRA · AMYVID · AUBAGIO · AUSTEDO · Aimovig · BOTOX · BOTOX THERAPEUTIC · BRIUMVI · Briviact · Ceribell Rapid Response EEG · DUOPA · Dysport · ELYXYB - CELECOXIB · EMGALITY · FIRDAPSE · Fycompa · GAMMAGARD · GILENYA · GOCOVRI · GRALISE · Gocovri · HYQVIA · Hillrom - Vest System Model 105 Home Care · Hizentra · INBRIJA · INGREZZA · KESIMPTA · Leqembi · MAVENCLAD · MAYZENT · Mavenclad · NUPLAZID · NURTEC ODT · Nourianz · OCREVUS · OCTAGAM IMMUNE GLOBULIN (HUMAN) · ONGENTYS · ONPATTRO · OXTELLAR XR · Ocrevus · Ocrevus Zunovo · Ongentys · PANZYGA · PURIFIED CORTROPHIN GEL · QULIPTA · RADICAVA · RELYVRIO · REXULTI · RNS Neurostimulator Kit · RYTARY · Rystiggo · SOLIRIS · SPINRAZA · Soliris · Sunosi · TROKENDI XR · TYSABRI · Tiglutik · Trudhesa · UBRELVY · ULTOMIRIS · UPLIZNA · VALTOCO · VNS Therapy · VNS Therapy SenTiva Model 1000 Generator · VUMERITY · VYEPTI · VYVGART · VYVGART HYTRULO · Vimpat · WATCHMAN FLX · XCOPRI · Xadago · Xeomin · ZEPOSIA · ZTLido · Zilbrysq
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 →
The majority of payments (55%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers.
Geographic Context
Neurologists within 10 mi
8
Per 100K population
4.4
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. Garnaas is a mixed practice specialist, with above-average Medicare volume (top 1% in CA), with consulting-driven industry engagement in the top 15% of CA peers, with 19 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. Garnaas experienced with botox injection, per unit?
Based on Medicare claims data, Dr. Garnaas performed 32,610 botox injection, per unit 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. Garnaas receive payments from pharmaceutical companies?
Yes. Dr. Garnaas received a total of $22,063 from 63 companies across 490 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. Garnaas's costs compare to other neurologists in Redding?
Dr. Garnaas's average Medicare payment per service is $17. 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. Garnaas) 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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