Dr. Nicholas Bradford Castner , MD
Dermatology โข Largo, FL
8787 Bryan Dairy Rd Ste 360
Largo, FL 337771260
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 April 1, 2018; this date does not establish years in practice.
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Published CMS data list 1,801 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 17311 โ Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks: 405 service units.
- 17312 โ Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks: 228 service units.
- 12032 โ Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm: 192 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ 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 26 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 109 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Doxycycline Hyclate โ 49 prescription fills, including refills.
- Cephalexin โ 46 prescription fills, including refills.
- Fluorouracil โ 14 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table ยท Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 65% of clinicians listed under Dermatology in Florida (2024, 840 clinicians with data). Median for this group: 3,319. Middle half: 1,281 to 7,079.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 628 in 2023 to 1,801 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023โ2024.
Practice Location & Contact Primary Location
8787 Bryan Dairy Rd Ste 360
Largo, FL 337771260
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Suncoast Skin Solutions. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
University Of South Florida College Of Medicine
2018
What Public CMS Data Show
Dermatology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
658 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 โ by Provider, 2024.
Medicare-allowed amount
About $629,370 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 โ by Provider and Service, 2024.
Paid by Medicare
About $493,222 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 โ by Provider and Service, 2024.
30-day fills
109 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
$1,836 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 โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $396.85 across 15 records.
By nature of payment
- Food and Beverage: $396.85 across 15 records.
Reporting-company totals (3 largest of 7)
- ABBVIE INC.: $125.00 across 1 record.
- Regeneron Pharmaceuticals, Inc.: $78.07 across 4 records.
- Journey Medical Corporation: $75.92 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 2025 (published June 30, 2026).
Years since graduation
8 years (graduated 2018)
CMS Doctors and Clinicians data list 2018 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2018
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.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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, โDoes your provider accept Medicare as full payment?โ
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)
Dr. Castner 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 Dr. Castner 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 Largo and Florida
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 65% of clinicians listed under Dermatology in Florida (2024, 840 clinicians with data). Median for this group: 3,319. Middle half: 1,281 to 7,079.
Too few clinicians listed under Dermatology in Largo have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 80% of clinicians listed under Dermatology in Florida (2024, 840 clinicians with data). Median for this group: $233,999. Middle half: $92,950 to $521,722.
Too few clinicians listed under Dermatology in Largo have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 80% of clinicians listed under Dermatology in Florida (2024, 840 clinicians with data). Median for this group: $169,006. Middle half: $65,814 to $384,781.
Too few clinicians listed under Dermatology in Largo have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
Fewer Part D prescriptions than 85% of clinicians listed under Dermatology in Florida (2024, 907 clinicians with data). Median for this group: 606. Middle half: 254 to 1,130.
Too few clinicians listed under Dermatology in Largo have Medicare Part D data for 2024 to compare.
Part D drug cost
A lower Part D drug cost than 85% of clinicians listed under Dermatology in Florida (2024, 907 clinicians with data). Median for this group: $32,090. Middle half: $6,089 to $165,032.
Too few clinicians listed under Dermatology in Largo have Medicare Part D data for 2024 to compare.
6 active clinicians are listed under Dermatology with a practice address in Largo, FL (1,213 in Florida).
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 187% from 628 in 2023 to 1,801 in 2024.
- 2023: 628
- 2024: 1,801
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Medicare-allowed amount
Medicare-allowed amount increased 162% from $240,048 in 2023 to $629,370 in 2024.
- 2023: $240,048
- 2024: $629,370
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Paid by Medicare
Paid by Medicare increased 158% from $190,973 in 2023 to $493,222 in 2024.
- 2023: $190,973
- 2024: $493,222
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 38% from 79 in 2019 to 109 in 2024.
- 2019: 79
- 2020: 146
- 2021: 22
- 2022: 19
- 2024: 109
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30-day fills
30-day fills increased 31% from 83 in 2019 to 109 in 2024.
- 2019: 83
- 2020: 169
- 2021: 24
- 2022: 21
- 2024: 109
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Part D drug cost
Part D drug cost decreased 83% from $10,693 in 2019 to $1,836 in 2024.
- 2019: $10,693
- 2020: $10,205
- 2021: $61,497
- 2022: $615
- 2024: $1,836
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $124.62 in 2021 to $396.85 in 2025.
- 2021: $124.62
- 2022: $440.90
- 2023: $700.47
- 2024: $502.01
- 2025: $396.85
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท 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 2025 (payments made January 1 โ December 31, 2025): 15 records totaling $396.85.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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SKYRIZI | General | $125.00 |
| Journey Medical Corporation |
Food and Beverage
In-kind items and services
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โ | General | $75.92 |
| ConvaTec Inc. |
Food and Beverage
In-kind items and services
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INNOVAMATRIX AC | General | $31.39 |
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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LIBTAYO | General | $20.49 |
| Kerecis Limited |
Food and Beverage
Cash or cash equivalent
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Kerecis SurgiClose | General | $20.21 |
| Kerecis Limited |
Food and Beverage
Cash or cash equivalent
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Kerecis SurgiClose | General | $20.18 |
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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LIBTAYO | General | $19.87 |
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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LIBTAYO | General | $19.67 |
| Surgenex LLC |
Food and Beverage
Cash or cash equivalent
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SurGraft | General | $19.63 |
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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LIBTAYO | General | $18.04 |
| Novartis Pharmaceuticals Corporation |
Food and Beverage
In-kind items and services
|
COSENTYX | General | $16.77 |
| Kerecis Limited |
Food and Beverage
Cash or cash equivalent
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Kerecis SurgiClose | General | $2.93 |
| Kerecis Limited |
Food and Beverage
Cash or cash equivalent
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Kerecis SurgiClose | General | $2.68 |
| Kerecis Limited |
Food and Beverage
Cash or cash equivalent
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Kerecis SurgiClose | General | $2.49 |
| Kerecis Limited |
Food and Beverage
Cash or cash equivalent
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Kerecis SurgiClose | General | $1.58 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2022โ2023 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 โ by Provider and Service data, 2023โ2024; 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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17311
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks
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405 | 336 | $1321.81 | $583.95 |
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17312
Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks
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228 | 173 | $799.33 | $390.44 |
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12032
Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm
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192 | 171 | $591.62 | $250.99 |
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17313
Removal and microscopic exam of growth of trunk, arms, or legs, 1-5 tissue blocks
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128 | 111 | $1241.39 | $608.98 |
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13132
Complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm
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105 | 98 | $916.29 | $232.07 |
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11603
Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm
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102 | 92 | $546.66 | $138.49 |
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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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94 | 83 | $179.14 | $86.76 |
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13121
Complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm
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74 | 69 | $823.85 | $310.01 |
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11602
Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm
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65 | 64 | $477.38 | $121.09 |
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11102
Biopsy of related skin growth, first growth
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57 | 50 | $193.25 | $69.34 |
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17314
Removal and microscopic exam of growth of trunk, arms, or legs, each additional stage, 1-5 tissue blocks
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49 | 36 | $764.98 | $376.62 |
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J3301
Injection, triamcinolone acetonide, not otherwise specified, 10 mg
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31 | 13 | $1.99 | $0.98 |
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12052
Intermediate repair of wound of face, ears, eyelids, nose, lips, or mouth, 2.6-5.0 cm
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30 | 28 | $616.97 | $152.88 |
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11402
Removal of noncancer skin growth of body, arms, or legs, 1.1-2.0 cm
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27 | 26 | $336.85 | $85.94 |
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17000
Destruction of precancer skin growth, 1 growth
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23 | 21 | $131.64 | $48.00 |
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12042
Intermediate repair of wound of neck, hands, feet, or genitals, 2.6-7.5 cm
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22 | 22 | $606.15 | $176.24 |
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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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22 | 19 | $110.87 | $54.62 |
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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
|
21 | 20 | $253.32 | $124.73 |
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14060
Repair of wound of eyelids, nose, ears, or lips by transferring skin, 10.0 sq cm or less
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20 | 20 | $1523.75 | $719.16 |
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13152
Complicated repair of wound of eyelids, nose, ears, or lip, 2.6-7.5 cm
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19 | 19 | $975.26 | $240.33 |
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11900
Injection into skin growth, 1-7 growths
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18 | 11 | $111.83 | $49.12 |
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13101
Complicated repair of wound of trunk, 2.6-7.5 cm
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18 | 18 | $768.44 | $336.99 |
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14041
Repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet by transferring skin, 10.1-30.0 sq cm
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16 | 16 | $1825.66 | $899.38 |
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12031
Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.5 cm or less
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12 | 12 | $510.39 | $230.70 |
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14040
Repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet by transferring skin, 10.0 sq cm or less
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12 | 12 | $1495.69 | $738.95 |
(top 25 shown)
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 |
|---|---|---|---|---|---|
| Doxycycline Hyclate | Doxycycline Hyclate | 49 | 365 | $367.66 | 47 |
| Cephalexin | Cephalexin | 46 | 302 | $529.71 | 45 |
| Fluorouracil | Fluorouracil | 14 | 420 | $938.62 | 12 |
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
Self-certified to NPPES: 2025-08-15NUCC 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: 207ND0101X
The highly-trained surgeons that perform Mohs Micrographic Surgery are specialists both in dermatology and pathology. With their extensive knowledge of the skin and unique pathological skills, they are able to remove only diseased tissue, preserving healthy tissue and minimizing the cosmetic impact of the surgery. Mohs surgeons who belong to the American College of Mohs Surgery (ACMS) have completed a minimum of one year of fellowship training at one of the ACMS-approved training centers in the U.S.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - DERMATOLOGY
I20230622003347
FL
2769712173
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Suncoast Skin Solutions
8787 Bryan Dairy Rd, Seminole, FL 337771260
Phone: 8133211786
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.)
Dermatology
Doctor of Medicine (M.D.)
Dermatology
Doctor of Osteopathic Medicine (D.O.)
Dermatology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 8787 BRYAN DAIRY RD STE 360, LARGO, FL 337771260 (Tel: 8133211786)
Registered at 18228 N US HIGHWAY 41, LUTZ, FL 335494400 (Tel: 8133211786)
Registered at 4197 WOODLANDS PKWY, PALM HARBOR, FL 346853493 (Tel: 7277863810)
Registered at 4919 MEMORIAL HWY STE 150, TAMPA, FL 336347516 (Tel: 8133331512)
Dermatology (license number reported to NPPES: FL ME162846)
NPI status registered as active in NPPES database
Registered at 17 DAVIS BLVD STE 308, TAMPA, FL 336063438 (Tel: 8132502506)
Registered at 17 DAVIS BLVD STE 308, TAMPA, FL 336063438 (Tel: 8132502506)
Recorded as NICHOLAS CASTNER, MD
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Dermatology Specialists in Largo
- Dr. Christopher Ballard, MD
- Dr. Alexander Dane, DO
- Dr. Lana Mckinley, DO
- Dr. Whitney Delozier, MD
- Dr. Summer Moon, DO
Mailing Address
18228 N Us Highway 41
Lutz, FL 335494400
Phone: 8133211786