Dr. Ellen Lyman Thomason Derrick , MD
Surgery - Vascular Surgery • Seattle, WA
3216 Ne 45th Pl Ste 207
Seattle, WA 981054028
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Ellen Derrick is listed in NPPES under Surgery - Vascular Surgery.
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NPI assigned on August 30, 2006; this date does not establish years in practice.
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Published CMS data list 108 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99213 — Established patient outpatient office visit: 39 service units.
- 36475 — Destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance: 30 service units.
- 99203 — New patient outpatient office visit: 23 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 4 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 15 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) — 15 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 90% of clinicians listed under Surgery - Vascular Surgery in Seattle, WA (2024, 24 clinicians with data). Median for this group: 477. Middle half: 213 to 836.
Fewer Medicare Part B services than 90% of clinicians listed under Surgery - Vascular Surgery in Washington (2024, 87 clinicians with data). Median for this group: 549. Middle half: 332 to 1,087.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 30 in 2020 to 108 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
3216 Ne 45th Pl Ste 207
Seattle, WA 981054028
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2001
What Public CMS Data Show
Surgery - Vascular Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
35 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $46,722 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $36,470 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
15 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$12 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $25.04 in 2024
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2024.
Years since graduation
25 years (graduated 2001)
CMS Doctors and Clinicians data list 2001 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
May accept Medicare assignment
CMS data show this clinician may accept Medicare assignment. Clinicians who do not always accept assignment can decide case by case.
Ask the office before your visit. If a clinician does not accept assignment for a service, they can charge up to 15% more than the Medicare-approved amount, and you may be asked to pay the full amount at the visit.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Can order Medicare-covered services
CMS lists Dr. Derrick as eligible to order or refer durable medical equipment (DME) for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Seattle and Washington
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 90% of clinicians listed under Surgery - Vascular Surgery in Seattle, WA (2024, 24 clinicians with data). Median for this group: 477. Middle half: 213 to 836.
Fewer Medicare Part B services than 90% of clinicians listed under Surgery - Vascular Surgery in Washington (2024, 87 clinicians with data). Median for this group: 549. Middle half: 332 to 1,087.
Medicare-allowed amount
A higher Medicare-allowed amount than 60% of clinicians listed under Surgery - Vascular Surgery in Seattle, WA (2024, 24 clinicians with data). Median for this group: $33,938. Middle half: $21,534 to $63,915.
A lower Medicare-allowed amount than 60% of clinicians listed under Surgery - Vascular Surgery in Washington (2024, 87 clinicians with data). Median for this group: $59,693. Middle half: $28,858 to $120,768.
Paid by Medicare
A higher Medicare payment amount than 65% of clinicians listed under Surgery - Vascular Surgery in Seattle, WA (2024, 24 clinicians with data). Median for this group: $26,115. Middle half: $15,872 to $49,127.
Close to the middle for clinicians listed under Surgery - Vascular Surgery in Washington (2024, 87 clinicians with data). Median for this group: $44,408. Middle half: $22,459 to $92,742.
Medicare Part D prescriptions
Fewer Part D prescriptions than 75% of clinicians listed under Surgery - Vascular Surgery in Seattle, WA (2024, 15 clinicians with data). Median for this group: 60. Middle half: 19 to 221.
Fewer Part D prescriptions than 90% of clinicians listed under Surgery - Vascular Surgery in Washington (2024, 73 clinicians with data). Median for this group: 74. Middle half: 31 to 180.
Part D drug cost
A lower Part D drug cost than 95% of clinicians listed under Surgery - Vascular Surgery in Seattle, WA (2024, 15 clinicians with data). Median for this group: $13,761. Middle half: $311 to $22,224.
A lower Part D drug cost than 95% of clinicians listed under Surgery - Vascular Surgery in Washington (2024, 73 clinicians with data). Median for this group: $1,329. Middle half: $280 to $17,879.
36 active clinicians are listed under Surgery - Vascular Surgery with a practice address in Seattle, WA (131 in Washington).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Seattle
50% of these 36 clinicians have the CMS telehealth indicator.
69.4% of these 36 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 260% from 30 in 2020 to 108 in 2024.
- 2020: 30
- 2021: 111
- 2022: 68
- 2023: 128
- 2024: 108
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Medicare-allowed amount
Medicare-allowed amount increased 1495% from $2,929 in 2020 to $46,722 in 2024.
- 2020: $2,929
- 2021: $15,065
- 2022: $9,433
- 2023: $35,798
- 2024: $46,722
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Paid by Medicare
Paid by Medicare increased 1774% from $1,946 in 2020 to $36,470 in 2024.
- 2020: $1,946
- 2021: $11,176
- 2022: $6,353
- 2023: $27,603
- 2024: $36,470
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 16 in 2013 to 15 in 2024.
- 2013: 16
- 2015: 11
- 2024: 15
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30-day fills
30-day fills decreased 25% from 20 in 2013 to 15 in 2024.
- 2013: 20
- 2015: 11
- 2024: 15
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Part D drug cost
Part D drug cost went from $225 in 2013 to $12 in 2024.
- 2013: $225
- 2015: $123
- 2024: $12
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $228.24 in 2019 to $25.04 in 2024.
- 2019: $228.24
- 2020: $299.77
- 2021: $41.33
- 2023: $130.53
- 2024: $25.04
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $25.04.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
VENASEAL | General | $25.04 |
Source: CMS Open Payments, program year 2024, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2019–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2020–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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39 | 24 | $200.00 | $98.42 |
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36475
Destruction of first incompetent vein of arm or leg using radiofrequency and imaging guidance
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30 | 11 | $4200.00 | $1218.75 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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23 | 23 | $250.00 | $122.68 |
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93970
Ultrasound study of arm or leg veins with compression and maneuvers
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16 | 14 | $500.00 | $218.71 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 15 | 15 | $12.13 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 2086S0129X
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSSources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
NPI status registered as active in NPPES database
Registered at 3216 NE 45TH PL STE 207, SEATTLE, WA 981054028 (Tel: 2065963976)
Registered at 6541 50TH AVE NE, SEATTLE, WA 98115 (Tel: (206) 818-6905)
Recorded as ELLEN DERRICK, MD
Surgery (license number reported to NPPES: WA MD00045873)
NPI status registered as active in NPPES database
Registered at 1330 ROCKEFELLER AVE, STE 520, EVERETT, WA 982011684 (Tel: 4252975200)
Registered at PO BOX 3360, PORTLAND, OR 972083360 (Tel: 8667472455)
Recorded as ELLEN DERRICK, MD
Surgery (license number reported to NPPES: WA MD00045873)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Surgery - Vascular Surgery Specialists in Seattle
- Kailey Sanders
- Robert Zierler
- Dr. Damon Pierce, MD
- Dr. Brian Lange, MD
- Dr. Swee Lian Tan, MD
- Dr. Sara Zettervall, MD
Mailing Address
6541 50th Ave Ne
Seattle, WA 98115
Phone: 2068186905