Medicare Enrolled
Dr. Leonard Kerwin, M.D.
Dermatology · West Bloomfield, MI
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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. Kerwin 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. Kerwin?
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What this data tells you about Dr. Kerwin
Dr. Leonard Kerwin is a dermatology specialist in West Bloomfield, MI, with 16 years of NPI registration. Based on federal Medicare data, Dr. Kerwin performed 2,977 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Kerwin received a total of $87,272 from 54 pharmaceutical and/or device companies across 944 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. Kerwin 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.
✓ 16 years of NPI registration
▲ Top 23% volume in MI
$87,272 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗2,977
Medicare services
Top 23% in MI for dermatology
Not available
Unique patients (not deduplicated)
$120
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 |
|---|---|---|---|
| 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. |
714 | $5 | $12 |
| 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. |
339 | $37 | $120 |
| 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. |
281 | $64 | $165 |
| 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. |
230 | $447 | $1,228 |
| 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. |
206 | $76 | $205 |
| Skin biopsy, tangential A procedure to remove a sample of the first identified skin growth for laboratory examination. |
177 | $68 | $188 |
| 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. |
164 | $84 | $234 |
| 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. |
111 | $258 | $795 |
| 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. |
107 | $217 | $877 |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | 91 | $332 | $744 |
| 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. |
75 | $80 | $204 |
| 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. |
57 | $40 | $101 |
| 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. |
56 | $113 | $516 |
| 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. |
44 | $288 | $742 |
| 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. |
39 | $109 | $306 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
35 | $1 | $5 |
| Injection into skin growths, 1-7 A procedure involving the injection of medication into one to seven skin growths. |
33 | $32 | $102 |
| Surgical removal of skin cancer, 1.1-2.0 cm Surgical excision of a cancerous skin growth measuring between 1.1 and 2.0 centimeters on the body, arms, or legs. |
29 | $99 | $453 |
| Simple drainage of skin abscess A minor procedure to drain a localized collection of pus from the skin. The abscess is opened to allow the fluid to escape and promote healing. |
24 | $86 | $226 |
| 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. |
23 | $427 | $1,151 |
| 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. |
20 | $41 | $96 |
| 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. |
20 | $797 | $1,819 |
| 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. |
19 | $203 | $930 |
| 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. |
19 | $618 | $1,404 |
| 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. |
19 | $55 | $133 |
| 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. |
17 | $732 | $1,689 |
| 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. |
14 | $105 | $240 |
| Ear tissue biopsy A procedure to remove a small sample of tissue from the ear for laboratory examination. |
14 | $50 | $181 |
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 ↗$87,272
Total received (2018-2024)
Avg $12,467/year across 7 years
Top 4% in MI for dermatology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
54
Companies
944
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
$33,671
2023
$18,580
2022
$27,190
2021
$1,991
2020
$1,141
2019
$2,207
2018
$2,491
Payments by company (2024)
Galderma Laboratories, L.P.
$23,263
PFIZER INC.
$7,833
Janssen Biotech, Inc.
$449
Dermavant Sciences, Inc.
$315
SUN PHARMACEUTICAL INDUSTRIES INC.
$297
Novartis Pharmaceuticals Corporation
$219
Lumenis BE inc
$197
Regeneron Healthcare Solutions, Inc.
$189
Lilly USA, LLC
$155
Kerecis Limited
$142
Amgen Inc.
$96
E.R. Squibb & Sons, L.L.C.
$69
GENZYME CORPORATION
$68
Arcutis Biotherapeutics, Inc.
$64
Biofrontera Inc.
$61
Boehringer Ingelheim Pharmaceuticals, Inc.
$58
ProgenaCare Global, LLC
$48
Ortho Dermatologics, a division of Bausch Health US, LLC
$47
ABBVIE INC.
$39
Merck Sharp & Dohme LLC
$25
Kyowa Kirin, Inc.
$21
Organon Llc
$17
Top 3 companies account for 93.7% of 2024 payments
All-time payments by company (2018-2024) ›
PFIZER INC.
$39,338
Galderma Laboratories, L.P.
$24,607
Pfizer Inc.
$9,550
Janssen Biotech, Inc.
$1,851
Zerigo Health, Inc.
$1,350
Regeneron Healthcare Solutions, Inc.
$904
Sun Pharmaceutical Industries Inc.
$844
Novartis Pharmaceuticals Corporation
$834
SUN PHARMACEUTICAL INDUSTRIES INC.
$760
GENZYME CORPORATION
$725
Biofrontera Inc.
$613
Almirall LLC
$515
Dermavant Sciences, Inc.
$477
ABBVIE INC.
$439
UCB, Inc.
$402
AbbVie Inc.
$349
E.R. Squibb & Sons, L.L.C.
$316
Ortho Dermatologics, a division of Bausch Health US, LLC
$306
Amgen Inc.
$283
AbbVie, Inc.
$234
Mayne Pharma Inc.
$227
VYNE Pharmaceuticals Inc.
$225
Lilly USA, LLC
$224
Lumenis BE inc
$197
Genentech USA, Inc.
$165
Kerecis Limited
$142
Arcutis Biotherapeutics, Inc.
$127
LEO Pharma Inc.
$125
Janssen Scientific Affairs, LLC
$113
MAYNE PHARMA COMMERCIAL LLC
$109
Johnson & Johnson Health Care Systems Inc.
$107
Merz North America, Inc.
$89
Boehringer Ingelheim Pharmaceuticals, Inc.
$83
Allergan Inc.
$82
MAYNE PHARMA INC.
$65
ProgenaCare Global, LLC
$48
Taro Pharmaceuticals USA, Inc.
$46
Incyte Corporation
$46
DERMIRA, INC.
$40
Nabriva Therapeutics, plc
$37
EPI Health, LLC
$31
Mission Pharmacal Company
$29
Journey Medical Corporation
$27
Merck Sharp & Dohme LLC
$25
STRATA Skin Sciences, Inc.
$24
Kyowa Kirin, Inc.
$21
Aclaris Therapeutics, Inc.
$19
PruGen, Inc. Pharmaceuticals
$17
Allergan, Inc.
$17
Organon Llc
$17
Mylan Pharmaceuticals Inc.
$14
Verrica Pharmaceuticals Inc.
$13
Smith & Nephew, Inc.
$12
Smith+Nephew, Inc.
$12
Top 3 companies account for 84.2% of all-time payments
Associated products mentioned in payments ›
0.25% · ABSORICA · ABSORICA (isotretinoin) · ABSORICA LD · ADBRY · AKLIEF · ALTRENO · AMELUZ · AMZEEQ · ARAZLO · Absorica LD · Acticlate · Ameluz · Avar · BLU-U · BOTOX · BRYHALI · Bensal HP · CIBINQO · COSENTYX · CYLTEZO · Cabtreo · Cimzia · Clarify Medical · Cordran Tape · DORYX · DUOBRII · DUPIXENT · DUPIXENT DUPILUMAB INJECTION · ENSTILAR · EPIDUO FORTE · EPSOLAY · EUCRISA · Enbrel · Erivedge · Exelderm · HADLIMA · HALOG OINTMENT (Halcinonide Ointment · HUMIRA · Humira · ILUMYA · Ilumya · JUBLIA · KEYTRUDA · Kerecis Omega3 SurgiClose · LIBTAYO · LUZU LULICONAZOLE · OLUMIANT · OPZELURA · ORACEA · Olux · Optilight · Otezla · Poteligeo · QBREXZA · REMICADE · RETIN-A-MICRO · RHOFADE · RINVOQ · SILIQ · SIMPONI · SKYRIZI · SOOLANTRA · SPEVIGO · Santyl · Seysara · Sitavig · Sivextro · Sotyktu · TALTZ · TOPICORT (desoximetasone) Topical Spray · TREMFYA · TWYNEO · Tremfya · USP) 0.1% · VTAMA · Veltin · Winlevi · XTRAC · YCANTH · ZILXI · 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
Dermatologists in nearby ZIP areas
259
County median income
$95,296
Nearest hospital to ZIP centroid (approximate)
HENRY FORD HEALTH WEST BLOOMFIELD HOSPITAL
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. Kerwin is a clinical cardiology specialist, with above-average Medicare volume (top 23% in MI), with 16 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. Kerwin experienced with destruction of precancerous skin growths, 2-14?
Based on Medicare claims data, Dr. Kerwin performed 714 destruction of precancerous skin growths, 2-14 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. Kerwin receive payments from pharmaceutical companies?
Yes. Dr. Kerwin received a total of $87,272 from 54 companies across 944 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. Kerwin's costs compare to other dermatologists in West Bloomfield?
Dr. Kerwin's average Medicare payment per service is $120. 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. Kerwin) 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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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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