Dr. Christopher W. Wulff, MD
Cardiology (Cardiovascular Disease Physician)
106 La Casa Via, #140
Walnut Creek, CA 94598
Who else practices at this address →
Contra Costa County includes mental health (19% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- Tulane University School of Medicine (1983)
- Years since graduation
- 43
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 2,208
Licensed in California since 1984, according to the Medical Board of California. 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
- 1983Medical school: Tulane University School of Medicine
- 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
-
Cardiovascular Disease Physician primary
CA license G53168 (first issued 1984; current) -
Interventional Cardiology Physician
CA license G53168 (first issued 1984; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Medical groups
- John Muir Physician Network (494 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
- 2,208
- Services billed
- 8,158
- Patients’ average age
- 78
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 1,098 | 667 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 804 | 693 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 470 | 461 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 398 | 366 |
| Interrogation device evaluation(s), (remote) up to 30 days; implantable cardiovascular physiologic monitor system, implantable loop recorder system, or subcutaneous cardiac rhythm monitor system, remote data acquisition(s), receipt of transmissions and tec | 386 | 65 |
| Evaluation of implantable heart and blood vessel monitoring system, remote up to 30 days | 333 | 55 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 190 | 100 |
| Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days | 147 | 64 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 110 | 62 |
| Established patient office or other outpatient visit, 20-29 minutes | 109 | 106 |
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, 13 companies reported 24 payments worth $555 in total to this clinician.
| Zoll Services LLC (a/k/a Zoll Lifecor Corp) | $151 |
|---|---|
| Novartis Pharmaceuticals Corporation | $106 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $58.57 |
| Boston Scientific Corporation | $55.23 |
| Bridgebio Pharma, Inc. | $23.57 |
| Bayer HealthCare Pharmaceuticals Inc. | $22.31 |
| Scpharmaceuticals Inc. | $21.61 |
| E.r. Squibb & Sons, L.l.c. | $20.83 |
| Food and Beverage | $555 |
|---|
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.