Dennis Michael Cassidy, M.D.
Clinical Cardiac Electrophysiology Physician · St Petersburg, FL
Dennis Michael Cassidy, M.D. is a clinical cardiac electrophysiology physician with a practice address in St Petersburg, Florida, and NPI 1649272006, issued on Aug 15, 2005. Check the license (Florida ME61837, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.
- Name
- Dennis Michael Cassidy
- Credential
- M.D.
- Primary taxonomy
- Clinical Cardiac Electrophysiology Physician 207RC0001X
- License number
- ME61837 FL
Self-reported in NPPES; status is on the state search - Practice location
- 601 7TH St S Ste 205, St Petersburg, FL 33701
- Phone
- (727) 893-6234
- Enumerated
- Aug 15, 2005
- Record last updated
- Sep 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (727) 553-7798
- Medicaid ID
- 103098900 FL
- Medicare enrollment
- Enrolled (PECOS I20080509000096); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical cardiac electrophysiology physician records → All 262 in Florida → Look up another NPI →
Also registered at 601 7TH St S Ste 205
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Laura Akers, ARNPNurse Practitioner1972565638
- Christopher Bariana, D.O.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1992092662
- George Blanco, MDCardiovascular Disease Physician1821203167
- Angela Bowersock, PA-CSurgical Physician Assistant1700875960
- John Brock, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1154327393
- Kelsie Cook, APRN, MSN, AGNP-CAdult Health Nurse Practitioner1538816749
Verify Dennis Michael Cassidy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersFlorida health license search
Search for license ME61837Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% fewer Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024
1,616 Medicare Part D claims for 274 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Eliquis266 claims
- Amiodarone Hcl95 claims
- Metoprolol Tartrate92 claims
- Amlodipine Besylate89 claims
- Metoprolol Succinate88 claims
- Sotalol77 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: $351.31
15 payments; by number, the most common kind was food and beverage; the largest payer was Zoll Services LLC (a/k/a Zoll LifeCor Corp). The 3,167 providers of this specialty with any payment received $10,651.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Ohi West Medical Group LLCSt Petersburg, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dennis Michael Cassidy among 262 clinical cardiac electrophysiology physician records in Florida
Dennis Michael Cassidy, M.D. is one of 262 clinical cardiac electrophysiology physician records with a practice address in Florida. 97% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 97% of these records are
- In the CMS Doctors and Clinicians fileYes · 93% of these records are
- Graduated1978 · median 2001 among the 243 with a school on file
- Record last updated2021 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0001X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Cardiac Electrophysiology Physician providers in Florida
There are 262 clinical cardiac electrophysiology physician records in Florida.
All 262 in Florida → Every provider in St Petersburg → Clinical Cardiac Electrophysiology Physician nationwide →
The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes
- Nicholas Kotch, D.O.St Petersburg, FL 337011588942650
- Daniel Masvidal, M.D.St Petersburg, FL 337011760610752
- Fahd Nadeem, MDSt Petersburg, FL 337051699193458
- Francisco Cardona, M.D.St Petersburg, FL 337091588626410
- Malay Gandhi, M.DSt Petersburg, FL 337091487877346
- Mina Ghobrial, DOSt Petersburg, FL 337091285059170
- Marshall Marcus, M.D.St Petersburg, FL 337091609160563
- Juan Garcia Morell, M.D.Clearwater, FL 337561154571560
Common questions
What is Dennis Michael Cassidy, M.D.'s NPI number?
Dennis Michael Cassidy, M.D.'s National Provider Identifier (NPI) is 1649272006, issued on Aug 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Dennis Michael Cassidy, M.D. located?
The NPPES record lists a practice address at 601 7TH St S Ste 205, St Petersburg, FL, 33701. Phone: (727) 893-6234. Providers update this record themselves, so call before visiting.
How can I verify Dennis Michael Cassidy, M.D.'s license?
NPPES lists Florida license number ME61837, 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 Dennis Michael Cassidy, M.D. prescribe under Medicare Part D?
In 2024, Dennis Michael Cassidy, M.D. had 1,616 Medicare Part D claims for 274 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. 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.