NPPES file of Aug 9, 2026

Nicholas Bradford Castner, MD

Dermatology Physician · Largo, FL

Nicholas Bradford Castner, MD is a dermatology physician with a practice address in Largo, Florida, and NPI 1992201875, issued on Apr 1, 2018. Check the license (Florida ME162846, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1992201875
Name
Nicholas Bradford Castner
Credential
MD
Primary taxonomy
Dermatology Physician 207N00000X
License number
ME162846 FL
Self-reported in NPPES; status is on the state search
Practice location
8787 Bryan Dairy RD Ste 360, Largo, FL 33777
Phone
(813) 321-1786
Enumerated
Apr 1, 2018
Record last updated
Aug 15, 2025
Fax
(813) 321-1787
Medicare enrollment
Enrolled (PECOS I20230622003347); accepts Medicare assignment
Medical or professional school
University Of South Florida College Of Medicine, 2018
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 8787 Bryan Dairy RD Ste 360

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Whitney Delozier, MDDermatology Physician1770726499
  2. Elizabeth GaffneyPhysician Assistant1912647983
  3. Jennifer Hickman, APRNFamily Nurse Practitioner1083162135
  4. Howard Hirschfield, MSN-ARNPFamily Nurse Practitioner1306982541
  5. Alina Ramsey, PA-CPhysician Assistant1265372478
  6. Melanie StefanchikPhysician Assistant1255903746

Verify Nicholas Bradford Castner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license ME162846
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Florida license search

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83% fewer Medicare Part D claims than the average dermatology physician in 2024

137 Medicare Part D claims for 117 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Nicholas Castner137
  2. Specialty average797

Most prescribed

  1. Doxycycline Hyclate49 claims
  2. Cephalexin46 claims
  3. Fluorouracil14 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $502.01

9 payments; by number, the most common kind was food and beverage; the largest payer was Kerecis Limited. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nicholas Castner$502.01
  2. Specialty average$8,544.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Suncoast Skin SolutionsSeminole, FL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nicholas Bradford Castner among 1,213 dermatology physician records in Florida

Nicholas Bradford Castner, MD is one of 1,213 dermatology physician records with a practice address in Florida. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 83% of them.

  • NPI issued2018 · 83% of these records are older, 14% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2018 · median 2004 among the 894 with a school on file
  • Record last updated2025 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Florida

There are 1,213 dermatology physician records in Florida.

The 8 dermatology physician records with the nearest ZIP codes

  1. Alexander Dane, D.O.Largo, FL 337771649619982
  2. Whitney Delozier, MDLargo, FL 337771770726499
  3. Frank Armstrong, DOSeminole, FL 337761952390148
  4. Christopher Ballard, MDLargo, FL 337781164679668
  5. Josef Doenges, M.D.Seminole, FL 337761760453039
  6. Gary Heller, D.O.Pinellas Park, FL 337811942255005
  7. Alexis Honigbaum, MDPinellas Park, FL 337811720423932
  8. Brandy Kucharski, PA-CPinellas Park, FL 337811679230387

Common questions

What is Nicholas Bradford Castner, MD's NPI number?

Nicholas Bradford Castner, MD's National Provider Identifier (NPI) is 1992201875, issued on Apr 1, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Nicholas Bradford Castner, MD located?

The NPPES record lists a practice address at 8787 Bryan Dairy RD Ste 360, Largo, FL, 33777. Phone: (813) 321-1786. Providers update this record themselves, so call before visiting.

How can I verify Nicholas Bradford Castner, MD's license?

NPPES lists Florida license number ME162846, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nicholas Bradford Castner, MD prescribe under Medicare Part D?

In 2024, Nicholas Bradford Castner, MD had 137 Medicare Part D claims for 117 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.