Medicare Enrolled
Dr. Mark Chastain, MD
MOHS-Micrographic Surgery Physician · Marietta, GA
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. Chastain 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. Chastain
Dr. Mark Chastain is a mohs-micrographic surgery physician in Marietta, GA, with 20 years of NPI registration. Based on federal Medicare data, Dr. Chastain performed 6,710 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Chastain received a total of $6,689 from 24 pharmaceutical and/or device companies across 130 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. Chastain 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 14% volume in GA
$6,689 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗6,710
Medicare services
Top 14% in GA for mohs-micrographic surgery physician
Not available
Unique patients (not deduplicated)
$239
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 |
|---|---|---|---|
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | 986 | $318 | $1,051 |
| 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. |
979 | $450 | $1,817 |
| Topical aminolevulinic acid HCl 20% solution A topical medication applied to the skin for medical treatment. It is supplied as a single-unit dosage form containing 354 mg of the active ingredient. |
857 | $299 | $756 |
| Light therapy to destroy precancerous skin growth This procedure uses light to treat and remove precancerous skin lesions. It is a method for destroying abnormal skin cells before they become cancerous. |
732 | $94 | $314 |
| 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. |
382 | $189 | $1,278 |
| 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. |
326 | $414 | $1,656 |
| 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. |
268 | $173 | $1,150 |
| Superficial or low voltage radiation treatment A radiation therapy procedure that delivers radiation to the surface of the body or uses low voltage energy. This treatment targets areas close to the skin. |
192 | $32 | $147 |
| Additional Mohs surgery stage with microscopic exam This procedure involves the removal and microscopic examination of an additional stage of tissue from the trunk, arms, or legs. It is performed in stages to ensure complete removal of the growth. |
191 | $304 | $1,001 |
| Intraoperative pathology examination, first tissue block A pathologist examines a tissue sample removed during surgery to provide a preliminary diagnosis. This test is performed on the first tissue block obtained from the procedure. |
165 | $78 | $299 |
| 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. |
145 | $3 | $31 |
| Skin biopsy, tangential A procedure to remove a sample of the first identified skin growth for laboratory examination. |
133 | $38 | $229 |
| Additional tissue block examination Microscopic examination of an additional tissue block beyond the initial five. This step is performed to analyze extra samples from the same growth. |
118 | $60 | $219 |
| 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. |
104 | $198 | $1,355 |
| 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. |
99 | $10 | $52 |
| Complicated wound repair, each additional 5 cm or less This code covers the additional work for a complex surgical repair of a wound on the scalp, arms, or legs when the repair extends beyond the initial measurement. It is billed for each incremental 5-centimeter segment added to the primary procedure. |
89 | $99 | $365 |
| 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. |
85 | $41 | $121 |
| Complicated wound repair, each additional 5 cm or less This code covers the additional work for repairing a complex wound in specified body areas when the repair extends beyond the initial measurement. It applies to each incremental 5.0 cm or less added to the primary repair length. |
76 | $131 | $502 |
| 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. |
68 | $70 | $468 |
| 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. |
67 | $56 | $217 |
| 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. |
65 | $23 | $181 |
| Complicated wound repair of trunk, 2.6-7.5 cm A surgical procedure to close a complex wound on the trunk that measures between 2.6 and 7.5 centimeters in length. |
62 | $165 | $1,068 |
| Radiation treatment planning, 1 area This procedure involves gathering the necessary data to design the most effective radiation therapy plan for a single treatment area. |
61 | $214 | $715 |
| 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. |
56 | $36 | $120 |
| New patient office visit, 15-29 minutes An initial office visit for a new patient lasting 15 to 29 minutes. This code is used when the total time spent on the date of the encounter meets this duration threshold. |
49 | $54 | $156 |
| Full thickness skin graft to nose, ears, eyelids, or lips, 20 sq cm or less A surgical procedure where a full layer of skin is taken from a donor site and transplanted to the nose, ears, eyelids, or lips. The graft covers an area of 20 square centimeters or less. |
45 | $767 | $2,712 |
| Complex repair of eyelid, nose, ear, or lip wound, 1.1-2.5 cm A surgical procedure to repair a complex wound on the eyelid, nose, ear, or lip that measures between 1.1 and 2.5 centimeters. |
35 | $172 | $1,133 |
| 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. |
34 | $595 | $2,078 |
| Complicated wound repair, trunk, each additional 5 cm or less This procedure involves a complex repair of a wound on the trunk, performed in addition to the primary repair. It covers each additional 5.0 cm or less of wound length. |
30 | $90 | $327 |
| Office visit for established patient An office visit for an existing patient that may not require the healthcare professional to be present. |
24 | $17 | $56 |
| 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. |
23 | $63 | $284 |
| 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. |
22 | $33 | $312 |
| Calculation of radiation therapy dose | 22 | $52 | $172 |
| Dermabrasion of part of face A procedure that uses a rotating instrument to remove the top layers of skin on a portion of the face. |
16 | $210 | $1,472 |
| 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. |
14 | $111 | $766 |
| 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. |
14 | $754 | $2,714 |
| Radiation treatment planning, complex This procedure involves obtaining the necessary data to develop an optimal radiation treatment plan for three or more treatment areas, or any number of areas requiring special treatment. |
14 | $321 | $1,276 |
| 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. |
14 | $67 | $295 |
| 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. |
13 | $158 | $827 |
| Ear tissue biopsy A procedure to remove a small sample of tissue from the ear for laboratory examination. |
13 | $36 | $267 |
| Skin graft repair, 10.1-30 sq cm A surgical procedure to repair wounds on the forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet by transferring skin. The graft covers an area between 10.1 and 30.0 square centimeters. |
11 | $705 | $2,539 |
| Eyelid biopsy A procedure to remove a small sample of tissue from the eyelid for laboratory examination. |
11 | $71 | $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.
2.8% high complexity
9.0% medium
88.2% routine
Industry Payment Transparency
Open Payments through 2024 ↗$6,689
Total received (2018-2024)
Avg $956/year across 7 years
Top 40% in GA for mohs-micrographic surgery physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
24
Companies
130
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
$1,351
2023
$1,731
2022
$1,284
2021
$1,627
2020
$99
2019
$291
2018
$307
Payments by company (2024)
ABBVIE INC.
$830
GENZYME CORPORATION
$140
Novartis Pharmaceuticals Corporation
$68
PFIZER INC.
$64
Regeneron Healthcare Solutions, Inc.
$52
SUN PHARMACEUTICAL INDUSTRIES INC.
$44
LEO Pharma Inc.
$27
Arcutis Biotherapeutics, Inc.
$26
Dermavant Sciences, Inc.
$24
Incyte Corporation
$22
Boehringer Ingelheim Pharmaceuticals, Inc.
$20
UCB, Inc.
$18
Galderma Laboratories, L.P.
$16
Top 3 companies account for 76.8% of 2024 payments
All-time payments by company (2018-2024) ›
Allergan, Inc.
$3,000
AbbVie Inc.
$1,508
ABBVIE INC.
$830
GENZYME CORPORATION
$214
Novartis Pharmaceuticals Corporation
$141
PFIZER INC.
$128
Janssen Biotech, Inc.
$117
UCB, Inc.
$99
Merz North America, Inc.
$72
Allergan Inc.
$71
AbbVie, Inc.
$61
Arcutis Biotherapeutics, Inc.
$60
Regeneron Healthcare Solutions, Inc.
$52
SUN PHARMACEUTICAL INDUSTRIES INC.
$44
Incyte Corporation
$42
Galderma Laboratories, L.P.
$41
Dermavant Sciences, Inc.
$41
Boehringer Ingelheim Pharmaceuticals, Inc.
$35
DUSA Pharmaceuticals, Inc.
$34
LEO Pharma Inc.
$27
Sun Pharmaceutical Industries Inc.
$23
DERMIRA, INC.
$19
Ortho Dermatologics, a division of Bausch Health US, LLC
$18
Genentech USA, Inc.
$13
Top 3 companies account for 79.8% of all-time payments
Associated products mentioned in payments ›
ADBRY · AKLIEF · BLU-U · BLU-U Blue Light Photodynamic Therapy Illuminator Model 4170 · BOTOX · BOTOX COSMETIC · Bimzelx · COSENTYX · Cimzia · DUOBRII · DUPIXENT · EPIDUO FORTE · EUCRISA · Erivedge · Humira · ILUMYA · LIBTAYO · ODOMZO · OPZELURA · REMICADE · RINVOQ · SKYRIZI · SPEVIGO · Tremfya · VTAMA · Zoryve
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
Mohs-micrographic surgery physicians in nearby ZIP areas
17
County median income
$98,712
Nearest hospital to ZIP centroid (approximate)
WELLSTAR KENNESTONE 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. Chastain is a mixed practice specialist, with above-average Medicare volume (top 14% in GA), 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. Chastain experienced with removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks?
Based on Medicare claims data, Dr. Chastain performed 986 removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks 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. Chastain receive payments from pharmaceutical companies?
Yes. Dr. Chastain received a total of $6,689 from 24 companies across 130 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. Chastain's costs compare to other mohs-micrographic surgery physicians in Marietta?
Dr. Chastain's average Medicare payment per service is $239. 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. Chastain) 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 →
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Which GA mohs-micrographic surgery physicians receive the most from drug and device companies.
By company
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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.
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