Medicare Enrolled
Dr. Mark Wallis, M.D.
Dermatology · Longview, TX
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. Wallis 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 →
Are you Dr. Wallis?
Request a correction or review of any data shown here. Provider portal →
What this data tells you about Dr. Wallis
Dr. Mark Wallis is a dermatology specialist in Longview, TX, with 20 years of NPI registration. Based on federal Medicare data, Dr. Wallis performed 8,452 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Wallis received a total of $8,222 from 38 pharmaceutical and/or device companies across 457 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Wallis 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.
✓ 20 years of NPI registration
▲ Top 12% volume in TX
$8,222 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗8,452
Medicare services
Top 12% in TX for dermatology
Not available
Unique patients (not deduplicated)
$52
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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 |
|---|---|---|---|
| Photodynamic therapy gel for precancerous skin | 3,000 | $1 | $3 |
| Tissue pathology examination, moderate complexity A laboratory test where a pathologist examines tissue samples under a microscope to analyze cellular details. This intermediate complexity procedure involves specialized techniques to identify abnormalities in the tissue. |
1,864 | $50 | $178 |
| 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. |
1,304 | $5 | $33 |
| 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. |
386 | $57 | $175 |
| 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. |
312 | $35 | $160 |
| Skin growth removal and lab exam, 1-5 blocks This procedure involves the removal of a growth from the head, neck, hands, feet, or genitals. The removed tissue is then examined under a microscope in the laboratory. |
285 | $464 | $1,570 |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | 143 | $316 | $960 |
| Pathology tissue examination, moderate complexity A laboratory test where a pathologist examines tissue samples under a microscope to identify abnormalities. This specific level indicates a moderate degree of complexity in the analysis. |
128 | $31 | $145 |
| Skin biopsy, tangential A procedure to remove a sample of the first identified skin growth for laboratory examination. |
114 | $59 | $245 |
| 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. |
113 | $88 | $250 |
| Complicated wound repair, 2.6-7.5 cm A complex surgical procedure to close a wound measuring between 2.6 and 7.5 centimeters on areas such as the face, neck, hands, or feet. |
52 | $193 | $1,145 |
| Shaving of skin growth, 0.6-1.0 cm A minor procedure to shave off a skin growth on the body, arms, or legs that measures between 0.6 and 1.0 centimeters. |
49 | $74 | $288 |
| 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. |
49 | $71 | $225 |
| 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. |
48 | $67 | $270 |
| Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.6-5.0 cm | 45 | $125 | $740 |
| Complex repair of eyelid, nose, ear, or lip wound, 2.6-7.5 cm A surgical procedure to repair a complex wound on the eyelid, nose, ear, or lip that measures between 2.6 and 7.5 centimeters. |
42 | $202 | $1,200 |
| 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. |
41 | $9 | $51 |
| Intermediate wound repair, 2.6-7.5 cm A medical procedure to close a wound on the scalp, underarms, trunk, arms, or legs that measures between 2.6 and 7.5 centimeters. This type of repair involves cleaning the wound and stitching it closed to promote healing. |
34 | $183 | $730 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
34 | $1 | $10 |
| 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. |
33 | $37 | $110 |
| 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. |
30 | $39 | $130 |
| 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. |
28 | $124 | $430 |
| Destruction of cancer skin growth, 0.6-1.0 cm This procedure involves the removal or destruction of a cancerous skin growth located on the trunk, arms, or legs that measures between 0.6 and 1.0 centimeters. |
28 | $86 | $347 |
| Shaving of skin growth on face, 0.6-1.0 cm This procedure involves shaving off a skin growth located on the face, ears, eyelids, nose, lips, or mouth. The size of the growth being removed is between 0.6 and 1.0 centimeters. |
25 | $102 | $330 |
| Destruction of cancer skin growth, 1.1-2.0 cm Removal of a cancerous skin growth on the trunk, arms, or legs that measures between 1.1 and 2.0 centimeters. |
22 | $119 | $423 |
| Destruction of cancerous skin growth on face, 0.6-1.0 cm This procedure involves the removal or destruction of a cancerous skin lesion located on the face, ears, eyelids, nose, lips, or mouth. The lesion treated measures between 0.6 and 1.0 centimeters in diameter. |
22 | $123 | $429 |
| Complicated wound repair, scalp/arms/legs, 2.6-7.5 cm A complex surgical procedure to close a wound on the scalp, arms, or legs that measures between 2.6 and 7.5 centimeters in length. |
21 | $186 | $1,020 |
| Skin graft repair of eyelid, nose, ear, or lip, 10 sq cm or less A surgical procedure to repair a wound on the eyelid, nose, ear, or lip by transferring a small piece of skin. The transferred skin covers an area of 10 square centimeters or less. |
20 | $593 | $1,850 |
| 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. |
20 | $122 | $345 |
| Shaving of skin growth, 1.1-2.0 cm This procedure involves shaving off a skin growth measuring between 1.1 and 2.0 centimeters from the body, arms, or legs. |
18 | $95 | $312 |
| Shaving of small skin growth on face or mouth area A minor procedure to shave off a small skin growth, measuring 0.5 cm or less, located on the face, ears, eyelids, nose, lips, or mouth. |
16 | $70 | $280 |
| Intermediate wound repair, 2.6-7.5 cm This procedure involves stitching a wound on the neck, hands, feet, or genitals that measures between 2.6 and 7.5 centimeters. It is classified as an intermediate repair requiring layered closure. |
16 | $136 | $725 |
| Shaving of skin growth, 0.6-1.0 cm A minor procedure to shave off a skin growth measuring 0.6 to 1.0 cm from the scalp, neck, hands, feet, or genitals. |
15 | $78 | $347 |
| Light application with debridement to destroy precancerous skin growth This procedure involves applying light to the skin along with debridement to destroy precancerous skin growths. |
15 | $216 | $570 |
| Skin growth shaving, 0.5 cm or less This procedure involves shaving off a small skin growth measuring 0.5 centimeters or less from the body, arms, or legs. |
12 | $41 | $245 |
| Surgical removal of skin cancer, 2.1-3.0 cm This procedure involves the surgical excision of a cancerous skin growth located on the body, arms, or legs. The size of the removed tissue measures between 2.1 and 3.0 centimeters. |
12 | $99 | $680 |
| Intermediate wound repair, 7.6-12.5 cm This procedure involves stitching a wound on the scalp, underarms, trunk, arms, or legs that measures between 7.6 and 12.5 centimeters. It includes cleaning the wound and closing it with sutures to promote healing. |
12 | $183 | $766 |
| Shaving of skin growth, 0.5 cm or less Removal of a small skin growth by shaving it off the surface. This procedure is performed on the scalp, neck, hands, feet, or genitals. |
11 | $48 | $315 |
| Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 5.1-7.5 cm | 11 | $154 | $835 |
| Skin graft repair of eyelid, nose, ear, or lip, 10.1-30 sq cm This procedure involves repairing a wound on the eyelid, nose, ear, or lip by transferring skin from another area. The graft size covered is between 10.1 and 30.0 square centimeters. |
11 | $767 | $2,400 |
| Skin growth removal and lab exam, 1-5 blocks A procedure to remove a growth from the trunk, arms, or legs and send 1 to 5 tissue samples to a laboratory for microscopic examination. |
11 | $492 | $1,475 |
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. These counts do not measure clinical quality or years of experience.
Industry Payment Transparency
Open Payments through 2024 ↗$8,222
Total received (2018-2024)
Avg $1,175/year across 7 years
Top 32% in TX for dermatology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
38
Companies
457
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,136
2023
$1,616
2022
$1,613
2021
$1,047
2020
$591
2019
$796
2018
$423
Payments by company (2024)
ABBVIE INC.
$399
GENZYME CORPORATION
$296
Regeneron Healthcare Solutions, Inc.
$278
SUN PHARMACEUTICAL INDUSTRIES INC.
$187
Janssen Biotech, Inc.
$157
PFIZER INC.
$150
Lilly USA, LLC
$113
STRATA Skin Sciences, Inc.
$101
E.R. Squibb & Sons, L.L.C.
$92
Galderma Laboratories, L.P.
$78
Incyte Corporation
$62
Novartis Pharmaceuticals Corporation
$54
LEO Pharma Inc.
$54
UCB, Inc.
$49
Ortho Dermatologics, a division of Bausch Health US, LLC
$29
Boehringer Ingelheim Pharmaceuticals, Inc.
$19
Amgen Inc.
$17
Top 3 companies account for 45.6% of 2024 payments
All-time payments by company (2018-2024) ›
AbbVie Inc.
$857
ABBVIE INC.
$813
Lilly USA, LLC
$786
Janssen Biotech, Inc.
$714
Regeneron Healthcare Solutions, Inc.
$687
GENZYME CORPORATION
$521
Novartis Pharmaceuticals Corporation
$495
AbbVie, Inc.
$474
Sun Pharmaceutical Industries Inc.
$435
PFIZER INC.
$335
Amgen Inc.
$250
SUN PHARMACEUTICAL INDUSTRIES INC.
$223
E.R. Squibb & Sons, L.L.C.
$194
UCB, Inc.
$157
Incyte Corporation
$141
LEO Pharma Inc.
$131
Galderma Laboratories, L.P.
$104
STRATA Skin Sciences, Inc.
$101
Almirall LLC
$93
MAYNE PHARMA INC.
$90
Boehringer Ingelheim Pharmaceuticals, Inc.
$87
Glenmark Therapeutics Inc.
$79
Biofrontera Inc.
$74
Janssen Scientific Affairs, LLC
$67
Ortho Dermatologics, a division of Bausch Health US, LLC
$64
Celgene Corporation
$56
Paratek Pharmaceuticals, Inc.
$27
Arcutis Biotherapeutics, Inc.
$24
Dermavant Sciences, Inc.
$20
TRIAD LIFE SCIENCES INC.
$19
Helsinn Therapeutics (U.S.), Inc.
$18
Alexion Pharmaceuticals, Inc.
$14
Mission Pharmacal Company
$13
EPI Health, LLC
$13
Journey Medical Corporation
$12
Merck Sharp & Dohme Corporation
$12
Encore Dermatology Inc.
$11
Organon LLC
$11
Top 3 companies account for 29.9% of all-time payments
Associated products mentioned in payments ›
ADBRY · AKLIEF · AMELUZ · Ameluz · Avar · BLU-U · BRYHALI · Bimzelx · CIBINQO · COSENTYX · Cabtreo · Cimzia · DORYX · DUOBRII · DUPIXENT · DUPIXENT DUPILUMAB INJECTION · EBGLYSS · ENSTILAR · EUCRISA · Enbrel · HADLIMA · HUMIRA · Humira · ILUMYA · INNOVAMATRIX AC · Impoyz · LIBTAYO · Mupirocin Cream · NUZYRA · OPZELURA · ORACEA · Otezla · REMICADE · RINVOQ · SIVEXTRO · SKYRIZI · SOOLANTRA · SPEVIGO · Seysara · Sitavig · Sotyktu · TALTZ · TREMFYA · TargaDox · VALCHLOR · VTAMA · Winlevi · XTRAC
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. 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 →
Geographic Context
Dermatologists in nearby ZIP areas
9
County median income
$64,809
Nearest hospital to ZIP centroid (approximate)
LONGVIEW REGIONAL MEDICAL CENTER
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | 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. Wallis is a mixed practice specialist, with above-average Medicare volume (top 12% in TX), with 20 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. Wallis experienced with photodynamic therapy gel for precancerous skin?
Based on Medicare claims data, Dr. Wallis performed 3,000 photodynamic therapy gel for precancerous skin services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Wallis receive payments from pharmaceutical companies?
Yes. Dr. Wallis received a total of $8,222 from 38 companies across 457 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. 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. Wallis's costs compare to other dermatologists in Longview?
Dr. Wallis'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. Wallis) 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 the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. 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?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
Explore related providers
Same specialty & city
Dermatologists in Longview
Browse dermatologists in Longview ranked by procedure volume and transparency data.
Highest volume
Top Dermatologists in TX
Dermatologists ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Dermatologists in TX
Which TX dermatologists receive the most from drug and device companies.
By company
AbbVie Inc. Payments to Doctors
See all physicians who received payments from AbbVie Inc.
By company
ABBVIE INC. Payments to Doctors
See all physicians who received payments from ABBVIE INC.
By company
Lilly USA, LLC Payments to Doctors
See all physicians who received payments from Lilly USA, LLC.
About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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