Daniel M. Knowles, PA
Physician Assistants (Physician Assistant)
- Medicare participating
At a glance
- Years since graduation
- 7
- In the NPI registry since
- 2019
- Medicare patients seen, 2024
- 1,023
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. What an NPI is
Education and training
- 2019Registered with an NPI (national billing number; not a license date)
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
-
Physician Assistant primary
SC license 3240
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Roper Hospital Charleston, SC
- Bon Secours-St Francis Xavier Hospital Charleston, SC
- Roper St Francis Hospital-Berkeley Inc Summerville, SC
- Mount Pleasant Hospital Mount Pleasant, SC
Medical groups
- Roper Saint Francis Physicians Network (528 clinicians)
- Psynergy Health Med PLLC (36 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 1,023
- Services billed
- 1,513
- Patients’ average age
- 76
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 180 | 167 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 97 | 95 |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician | 62 | 62 |
| Established patient office or other outpatient visit, 20-29 minutes | 62 | 62 |
| Established patient office or other outpatient visit, 40-54 minutes | 26 | 26 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
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, 19 companies reported 48 payments worth $1,107 in total to this clinician.
| Novartis Pharmaceuticals Corporation | $146 |
|---|---|
| Boston Scientific Corporation | $144 |
| Scpharmaceuticals Inc. | $113 |
| Pfizer Inc. | $104 |
| Abbott Laboratories | $93.22 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $77.62 |
| Bridgebio Pharma, Inc. | $64.32 |
| Philips North America LLC | $48.52 |
| Food and Beverage | $1,107 |
|---|
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.