Dr. Michael E Mathieu , MD
Dermatology • Winchester, VA
1514 Amherst St
Winchester, VA 226012803
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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NPI assigned on January 28, 2006; this date does not establish years in practice.
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Published CMS data list 1,619 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Published rows only; this is not a quality measure.
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Published Part B service records, 2023:
- 17003 — Destruction of precancer skin growth, 2-14 growths: 715 service units.
- 99213 — Established patient outpatient office visit: 410 service units.
- 17000 — Destruction of precancer skin growth, 1 growth: 264 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2022 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2023). CPT notice
See all 9 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 113 Medicare Part D prescriptions, including refills, in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Published rows only; this is not a quality measure.
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Published Part D records, 2023:
- Triamcinolone Acetonide — 40 prescription fills, including refills.
- Betamethasone Diprop Augmented (Betamethasone/Propylene Glyc) — 27 prescription fills, including refills.
- Ketoconazole — 18 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 5 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 8,667.7 in 2019 to 1,619 in 2023.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2019–2023.
Practice Location & Contact Primary Location
1514 Amherst St
Winchester, VA 226012803
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: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $75,921 in 2023
The total amount Medicare approved for these services in 2023. 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, 2023.
Paid by Medicare
About $42,059 in 2023
The part of the Medicare-allowed amount that Medicare itself paid in 2023, 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, 2023.
30-day fills
120 standardized 30-day fills in 2023
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
$7,381 in 2023
The total cost of these prescriptions in 2023, 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, 2023.
Open Payments general payments, program year 2023
All general payments: $198.55 across 10 records.
By nature of payment
- Food and Beverage: $198.55 across 10 records.
Reporting-company totals (3 largest of 6)
- ABBVIE INC.: $91.59 across 5 records.
- Novartis Pharmaceuticals Corporation: $36.09 across 1 record.
- LEO Pharma Inc.: $20.38 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2023 (published June 30, 2026).
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.
Compared with the same specialty in Winchester and Virginia
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Mathieu are from 2023.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Mathieu are from 2023.
4 active clinicians are listed under Dermatology with a practice address in Winchester, VA (422 in Virginia).
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 decreased 81% from 8,667.7 in 2019 to 1,619 in 2023.
- 2019: 8,667.7
- 2020: 6,670
- 2021: 7,751
- 2022: 7,510
- 2023: 1,619
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Medicare-allowed amount
Medicare-allowed amount decreased 82% from $428,765 in 2019 to $75,921 in 2023.
- 2019: $428,765
- 2020: $354,263
- 2021: $415,143
- 2022: $409,288
- 2023: $75,921
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Paid by Medicare
Paid by Medicare decreased 86% from $299,614 in 2019 to $42,059 in 2023.
- 2019: $299,614
- 2020: $242,935
- 2021: $284,231
- 2022: $271,595
- 2023: $42,059
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 81% from 600 in 2019 to 113 in 2023.
- 2019: 600
- 2020: 548
- 2021: 610
- 2022: 595
- 2023: 113
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30-day fills
30-day fills decreased 81% from 628 in 2019 to 120 in 2023.
- 2019: 628
- 2020: 570
- 2021: 630
- 2022: 621
- 2023: 120
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Part D drug cost
Part D drug cost decreased 80% from $37,303 in 2019 to $7,381 in 2023.
- 2019: $37,303
- 2020: $166,982
- 2021: $89,579
- 2022: $90,768
- 2023: $7,381
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $71.94 in 2021 to $198.55 in 2023.
- 2021: $71.94
- 2022: $387.37
- 2023: $198.55
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (2023), CMS Open Payments (2023), 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 2023 (payments made January 1 – December 31, 2023): fewer than 11 records totaling $198.55.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
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COSENTYX | General | $36.09 |
| LEO Pharma Inc. |
Food and Beverage
In-kind items and services
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ADBRY | General | $20.38 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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RINVOQ | General | $19.15 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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RINVOQ | General | $19.07 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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RINVOQ | General | $18.51 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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RINVOQ | General | $17.73 |
| Almirall LLC |
Food and Beverage
In-kind items and services
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Klisyri | General | $17.28 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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RINVOQ | General | $17.13 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
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REMICADE | General | $16.63 |
| Dermavant Sciences, Inc. |
Food and Beverage
In-kind items and services
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VTAMA | General | $16.58 |
Source: CMS Open Payments, program year 2023, 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 2016–2022 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, 2017–2023; 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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17003
Destruction of precancer skin growth, 2-14 growths
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715 | 190 | $12.50 | $6.73 |
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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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410 | 407 | $167.01 | $89.77 |
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17000
Destruction of precancer skin growth, 1 growth
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264 | 260 | $125.20 | $55.94 |
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88305
Pathology examination of tissue using a microscope, intermediate complexity
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95 | 74 | $68.44 | $36.51 |
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17110
Destruction of skin growth, 1-14 growths
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43 | 43 | $212.51 | $109.12 |
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11102
Biopsy of related skin growth, first growth
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34 | 34 | $190.02 | $94.83 |
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17262
Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm
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25 | 22 | $333.63 | $161.74 |
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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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18 | 18 | $104.64 | $55.71 |
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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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15 | 15 | $384.05 | $206.93 |
Source: CMS Part B by Provider and Service, 2023; 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 2023.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Triamcinolone Acetonide | Triamcinolone Acetonide | 40 | 900 | $304.83 | 28 |
| Betamethasone Diprop Augmented | Betamethasone/Propylene Glyc | 27 | 648 | $2,172.65 | 16 |
| Ketoconazole | Ketoconazole | 18 | 525 | $390.63 | 11 |
| Fluorouracil | Fluorouracil | 17 | 465 | $2,659.24 | 16 |
| Clobetasol Propionate | Clobetasol Propionate | 11 | 465 | $1,854.04 | — |
Source: CMS Part D by Provider and Drug, 2023; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207N00000X
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
NUCC Taxonomy Code: 207NS0135X
Procedural Dermatology, a subspecialty of Dermatology, encompassing a wide variety of surgical procedures and methods to remove or modify skin tissue for health or cosmetic benefit. These methods include scalpel surgery, laser surgery, chemical surgery, cryosurgery (liquid nitrogen), electrosurgery, aspiration surgery, liposuction, injection of filler substances, and Mohs micrographic controlled surgery (a special technique for the removal of growths, especially skin cancers).
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.
NUCC Taxonomy Code: 207N00000X
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
NUCC Taxonomy Code: 207NS0135X
Procedural Dermatology, a subspecialty of Dermatology, encompassing a wide variety of surgical procedures and methods to remove or modify skin tissue for health or cosmetic benefit. These methods include scalpel surgery, laser surgery, chemical surgery, cryosurgery (liquid nitrogen), electrosurgery, aspiration surgery, liposuction, injection of filler substances, and Mohs micrographic controlled surgery (a special technique for the removal of growths, especially skin cancers).
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
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.)
Dermatology
Doctor of Medicine (M.D.)
Dermatology
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated January 28, 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
Other Dermatology Specialists in Winchester
Healthcare providers in WinchesterMailing Address
1514 Amherst St
Winchester, VA 226012803
Phone: 5406674499