Dr. Ruby E. Kassanoff, M.D.
Internal Medicine (Internal Medicine Physician)
- Medicare participating
At a glance
- Medical school
- University of Texas Southwestern Medical School at Dallas (1996)
- Years since graduation
- 30
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 189
Licensed in Texas since 1999, according to the Texas Medical Board. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
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
- 1996Medical school: University of Texas Southwestern Medical School at Dallas
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
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
-
Internal Medicine Physician primary
TX license K7564 (first issued 1999; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Baylor University Medical Center Dallas, TX
- Texas Health Presbyterian Hospital Dallas Dallas, TX
Medical groups
- Abksw Preferred Health PArtners, PLLC (49 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
- 189
- Services billed
- 1,610
- Patients’ average age
- 77
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 270 | 135 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 138 | 138 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 137 | 126 |
| Injection of drug or substance under skin or into muscle | 87 | 18 |
| Established patient office or other outpatient visit, 20-29 minutes | 85 | 60 |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 74 | 74 |
| Administration of pneumococcal vaccine | 74 | 74 |
| Administration of influenza virus vaccine | 66 | 66 |
| Telephone medical discussion with physician, 5-10 minutes | 66 | 50 |
| Influenza vaccine split virus, preservative free | 63 | 63 |
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, 9 companies reported 14 payments worth $314 in total to this clinician.
| Sumitomo Pharma America, Inc. | $65.11 |
|---|---|
| Novo Nordisk Inc | $60.21 |
| Gilead Sciences, Inc. | $42.79 |
| Amgen Inc. | $35.01 |
| Abbott Laboratories | $26.19 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $24.33 |
| Medtronic, Inc. | $24.09 |
| GlaxoSmithKline, LLC. | $18.40 |
| Food and Beverage | $314 |
|---|
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.