Sanhwan Chen
Dermatology - Dermatopathology • Everett, WA
4004 Colby Ave
Everett, WA 982016203
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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Sanhwan Chen is listed in NPPES under Dermatology - Dermatopathology.
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NPI assigned on April 21, 2006; this date does not establish years in practice.
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Published CMS data list 4,190 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:
- 88305 — Pathology examination of tissue using a microscope, intermediate complexity: 1,497 service units.
- 17003 — Destruction of precancer skin growth, 2-14 growths: 790 service units.
- 99213 — Established patient outpatient office visit: 496 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 22 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 357 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:
- Triamcinolone Acetonide — 58 prescription fills, including refills.
- Fluorouracil — 48 prescription fills, including refills.
- Betamethasone Dipropionate — 39 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 all 14 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 2,757 in 2020 to 4,190 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
4004 Colby Ave
Everett, WA 982016203
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Dermatology - Dermatopathology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
948 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 $294,254 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 $218,404 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
411 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
$11,739 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 $15.17 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.
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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.
Enrolled in Medicare (PECOS)
Sanhwan Chen has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Sanhwan Chen as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services 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 Everett and Washington
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Not enough clinicians listed under Dermatology - Dermatopathology in Washington have Medicare Part B data for 2024 to make a comparison.
Medicare-allowed amount
Not enough clinicians listed under Dermatology - Dermatopathology in Washington have Medicare Part B data for 2024 to make a comparison.
Paid by Medicare
Not enough clinicians listed under Dermatology - Dermatopathology in Washington have Medicare Part B data for 2024 to make a comparison.
Medicare Part D prescriptions
Not enough clinicians listed under Dermatology - Dermatopathology in Washington have Medicare Part D data for 2024 to make a comparison.
Part D drug cost
Not enough clinicians listed under Dermatology - Dermatopathology in Washington have Medicare Part D data for 2024 to make a comparison.
1 active clinicians are listed under Dermatology - Dermatopathology with a practice address in Everett, WA (11 in Washington).
Addresses are self-reported to NPPES and may be out of date.
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 52% from 2,757 in 2020 to 4,190 in 2024.
- 2020: 2,757
- 2021: 3,884
- 2022: 4,125
- 2023: 4,465
- 2024: 4,190
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Medicare-allowed amount
Medicare-allowed amount increased 57% from $187,188 in 2020 to $294,254 in 2024.
- 2020: $187,188
- 2021: $280,412
- 2022: $286,655
- 2023: $317,429
- 2024: $294,254
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Paid by Medicare
Paid by Medicare increased 66% from $131,260 in 2020 to $218,404 in 2024.
- 2020: $131,260
- 2021: $212,325
- 2022: $204,749
- 2023: $236,608
- 2024: $218,404
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 114% from 167 in 2020 to 357 in 2024.
- 2020: 167
- 2021: 205
- 2022: 277
- 2023: 277
- 2024: 357
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30-day fills
30-day fills increased 123% from 184 in 2020 to 411 in 2024.
- 2020: 184
- 2021: 231
- 2022: 314
- 2023: 306
- 2024: 411
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Part D drug cost
Part D drug cost increased 32% from $8,926 in 2020 to $11,739 in 2024.
- 2020: $8,926
- 2021: $8,636
- 2022: $10,008
- 2023: $10,195
- 2024: $11,739
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2024 only.
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 $15.17.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
SKYRIZI | General | $15.17 |
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 2016–2023 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, 2017–2024; 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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88305
Pathology examination of tissue using a microscope, intermediate complexity
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1,497 | 755 | $217.50 | $72.03 |
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17003
Destruction of precancer skin growth, 2-14 growths
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790 | 155 | $17.75 | $6.76 |
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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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496 | 343 | $247.97 | $90.62 |
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17000
Destruction of precancer skin growth, 1 growth
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292 | 214 | $188.50 | $47.89 |
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11302
Shaving of skin growth of body, arms, or legs, 1.1-2.0 cm
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154 | 86 | $410.50 | $93.35 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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140 | 118 | $349.23 | $127.64 |
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11102
Biopsy of related skin growth, first growth
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115 | 108 | $293.25 | $79.26 |
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17262
Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm
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114 | 70 | $511.00 | $134.99 |
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88342
Special stained specimen slides to examine tissue, initial procedure
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106 | 102 | $332.25 | $107.15 |
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17282
Destruction of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 1.1-2.0 cm
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73 | 38 | $590.25 | $167.07 |
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17272
Destruction of cancer skin growth of scalp, neck, hands, feet, or genitals, 1.1-2.0 cm
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70 | 36 | $541.00 | $130.25 |
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11312
Shaving of skin growth of face, ears, eyelids, nose, lips, or mouth, 1.1-2.0 cm
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64 | 44 | $462.25 | $123.43 |
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11307
Shaving of skin growth of scalp, neck, hands, feet, or genitals, 1.1-2.0 cm
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55 | 45 | $419.25 | $106.50 |
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11103
Biopsy of related skin growth, each additional growth
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52 | 38 | $155.50 | $50.57 |
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88304
Pathology examination of tissue using a microscope, moderately low complexity
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31 | 28 | $130.25 | $43.41 |
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11301
Shaving of skin growth of body, arms, or legs, 0.6-1.0 cm
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26 | 22 | $355.25 | $99.16 |
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88312
Special stained specimen slides to identify organisms including interpretation and report
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24 | 20 | $334.50 | $110.96 |
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88341
Special stained specimen slides to examine tissue, each additional procedure
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23 | 20 | $293.00 | $91.64 |
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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 | $312.90 | $110.08 |
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17004
Destruction of precancer skin growth, 15 or more growths
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16 | 15 | $458.50 | $168.33 |
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99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
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16 | 15 | $164.50 | $56.69 |
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11311
Shaving of skin growth of face, ears, eyelids, nose, lips, or mouth, 0.6-1.0 cm
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13 | 12 | $400.25 | $116.84 |
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 |
|---|---|---|---|---|---|
| Triamcinolone Acetonide | Triamcinolone Acetonide | 58 | 1,464 | $358.69 | 36 |
| Fluorouracil | Fluorouracil | 48 | 1,599 | $3,340.55 | 47 |
| Betamethasone Dipropionate | Betamethasone Dipropionate | 39 | 853 | $1,663.40 | 28 |
| Doxycycline Hyclate | Doxycycline Hyclate | 31 | 1,401 | $1,428.54 | — |
| Ketoconazole | Ketoconazole | 27 | 817 | $419.05 | 18 |
| Clobetasol Propionate | Clobetasol Propionate | 24 | 597 | $1,351.75 | 13 |
| Metronidazole | Metronidazole | 23 | 874 | $1,064.51 | 18 |
| Nystatin | Nystatin | 21 | 505 | $259.88 | 15 |
| Mupirocin | Mupirocin | 21 | 346 | $213.88 | 17 |
| Minoxidil | Minoxidil | 15 | 602 | $83.75 | — |
| Betamethasone Diprop Augmented | Betamethasone/Propylene Glyc | 14 | 351 | $493.82 | — |
| Fluconazole | Fluconazole | 13 | 13 | $73.93 | — |
| Ciclopirox | Ciclopirox | 12 | 480 | $571.21 | — |
| Clindamycin Phosphate | Clindamycin Phosphate | 11 | 355 | $416.15 | — |
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: 207ND0900X
A dermatopathologist has the expertise to diagnose and monitor diseases of the skin including infectious, immunologic, degenerative and neoplastic diseases. This entails the examination and interpretation of specially prepared tissue sections, cellular scrapings and smears of skin lesions by means of routine and special (electron and fluorescent) microscopes.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - DERMATOLOGY
I20100225000576
WA
7214071463
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Dermatology
Doctor of Medicine (M.D.)
Nurse Practitioner
Advanced Registered Nurse Practitioner
Dermatology
Doctor of Medicine (M.D.)
Dermatology
Dermatology
Doctor of Medicine (M.D.)
Dermatology
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated April 21, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Mailing Address
Po Box 5127
Everett, WA 982065127