Medicare Enrolled

Dr. Haydee Knott, MD

Dermatology · Mill Valley, CA
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
Low-engagement
655 REDWOOD HWY #210, Mill Valley, CA 94941
4156348411
In practice since 2008 (17 years)
NPI: 1285808691 verify on NPPES ↗
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. Knott 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. Knott

Dr. Haydee Knott is a dermatology specialist in Mill Valley, CA, with 17 years of NPI registration. Based on federal Medicare data, Dr. Knott performed 2,975 Medicare services across 1,392 unique beneficiaries.

Between the years covered by Open Payments, Dr. Knott received a total of $3,713 from 28 pharmaceutical and/or device companies across 136 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in dermatology. 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. Knott 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.

✓ 17 years in practice ▲ Top 41% volume in CA $3,713 industry payments

Medicare Practice Summary

Medicare Utilization ↗
2,975
Medicare services
Top 41% in CA for dermatology
1,392
Unique beneficiaries
$52
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~175 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
Destruction of precancerous skin growths, 2-14
This procedure involves the removal or destruction of two to fourteen precancerous skin lesions. It is performed to eliminate abnormal skin cells that have the potential to develop into cancer.
1,200 $7 $18
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 $70 $218
Destruction of precancerous skin growth, 1
Removal of a single precancerous skin growth. This procedure destroys abnormal skin cells to prevent them from developing into cancer.
335 $45 $171
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.
322 $105 $306
Destruction of skin growths (warts/lesions), 1-14
This procedure involves the removal or destruction of one to fourteen skin growths. It is a minor surgical intervention performed on the skin surface.
235 $108 $299
Skin biopsy, tangential
A procedure to remove a sample of the first identified skin growth for laboratory examination.
182 $85 $267
Destruction of 15 or more precancerous skin growths
This procedure involves the removal or destruction of fifteen or more precancerous skin lesions. It is performed to treat abnormal skin cells that have the potential to develop into cancer.
79 $158 $434
Additional skin growth biopsy
Removal of a sample of an additional skin growth for laboratory examination. This code is used for each extra lesion biopsied during the same session.
62 $51 $131
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.
34 $70 $267
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.
23 $46 $139
Destruction of skin growth, 15 or more growths 20 $125 $345
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.
16 $120 $394
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 ↗
$3,713
Total received (2018-2024)
Avg $530/year across 7 years
Top 34% in CA for dermatology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
28
Companies
136
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
$3,713 (100.0%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$287
2023
$204
2022
$258
2021
$534
2020
$646
2019
$1,026
2018
$758

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
PFIZER INC.
$76
Arcutis Biotherapeutics, Inc.
$61
SUN PHARMACEUTICAL INDUSTRIES INC.
$35
MERZ NORTH AMERICA, INC.
$29
Biofrontera Inc.
$28
Almirall LLC
$23
REVANCE THERAPEUTICS, INC.
$21
Ortho Dermatologics, a division of Bausch Health US, LLC
$13
Top 3 companies account for 60.1% of 2024 payments
All-time payments by company (2018-2024) ›
PFIZER INC.
$876
Ortho Dermatologics, a division of Bausch Health US, LLC
$594
Lilly USA, LLC
$379
AbbVie, Inc.
$268
Mayne Pharma Inc.
$236
Merz North America, Inc.
$180
GENZYME CORPORATION
$128
Galderma Laboratories, L.P.
$111
Regeneron Healthcare Solutions, Inc.
$110
MAYNE PHARMA INC.
$94
Novartis Pharmaceuticals Corporation
$78
Janssen Biotech, Inc.
$73
MERZ NORTH AMERICA, INC.
$68
Arcutis Biotherapeutics, Inc.
$61
DERMIRA, INC.
$53
Bayer HealthCare Pharmaceuticals Inc.
$46
Mission Pharmacal Company
$44
Almirall LLC
$41
SUN PHARMACEUTICAL INDUSTRIES INC.
$35
Allergan, Inc.
$34
DUSA Pharmaceuticals, Inc.
$33
Biofrontera Inc.
$28
Amgen Inc.
$26
Incyte Corporation
$25
LEO Pharma Inc.
$25
Sun Pharmaceutical Industries Inc.
$25
REVANCE THERAPEUTICS, INC.
$21
Aclaris Therapeutics, Inc.
$19
Top 3 companies account for 49.8% of all-time payments
Associated products mentioned in payments ›
AKLIEF · ALTRENO · AMELUZ · ARAZLO · Aczone · Avar · BLU-U · BLU-U Blue Light Photodynamic Therapy Illuminator Model 4170 · BOTOX · BRYHALI · CIBINQO · COSENTYX · DAXXIFY · DORYX · DUOBRII · DUPIXENT · DUPIXENT DUPILUMAB INJECTION · ENSTILAR · EUCRISA · Finacea · Humira · ILUMYA · JUBLIA · Klisyri · LEVULAN KERASTICK · ONEXTON · OPZELURA · Otezla · QBREXZA · REMICADE · RETIN-A-MICRO · RHOFADE · SILIQ · SOOLANTRA · Skyrizi · TALTZ · XEOMIN · Xeomin · Zoryve
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.

Looking for a dermatology specialist in Mill Valley?
Compare dermatologists in the Mill Valley area by procedure volume, costs, and industry payment transparency.
Browse dermatologists nearby

Geographic Context

Dermatologists within 10 mi
196
Per 100K population
75.7
County median income
$142,785
Nearest hospital
MARINHEALTH MEDICAL CENTER
3.1 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. Knott is a clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement, with 17 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. Knott experienced with destruction of precancerous skin growths, 2-14?
Based on Medicare claims data, Dr. Knott performed 1,200 destruction of precancerous skin growths, 2-14 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. Knott receive payments from pharmaceutical companies?
Yes. Dr. Knott received a total of $3,713 from 28 companies across 136 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. Knott's costs compare to other dermatologists in Mill Valley?
Dr. Knott's average Medicare payment per service is $52. 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. Knott) 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 →
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.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →