Michael P. Hennessy, DDS
Periodontists (Periodontics)
At a glance
- In the NPI registry since
- 2008
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2008Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Periodontics primary
FL license DN 16973
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Chlorhexidine Gluconate Other prescribers in West PAlm Beach, FL | 410 |
| Amoxicillin Other prescribers in West PAlm Beach, FL | 363 |
| Ibuprofen Other prescribers in West PAlm Beach, FL | 244 |
| Methylprednisolone Other prescribers in West PAlm Beach, FL | 120 |
| Clindamycin Hcl Other prescribers in West PAlm Beach, FL | 56 |
| Amoxicillin-Clavulanate Potass (amoxicillin/potassium clav) Other prescribers in West PAlm Beach, FL | 22 |
| Hydrocodone-Acetaminophen (hydrocodone/acetaminophen) Other prescribers in West PAlm Beach, FL | 19 |
| Metronidazole Other prescribers in West PAlm Beach, FL | 19 |
| Acetaminophen-Codeine (acetaminophen with codeine) Other prescribers in West PAlm Beach, FL | 18 |
| Triazolam | 13 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 2 companies reported 2 payments worth $61.48 in total to this clinician.
| Align Technology, Inc. | $46.84 |
|---|---|
| Colgate Oral Pharmaceuticals, Inc. | $14.64 |
| Food and Beverage | $61.48 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.