Dr. Christopher M. Allen, MD
Emergency Medicine (Emergency Medicine Physician)
- Medicare participating
At a glance
- Medical school
- Saint Louis University School of Medicine (2012)
- Years since graduation
- 14
- In the NPI registry since
- 2012
- Medicare patients seen, 2024
- 623
Licensed in California since 2022, 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. What an NPI is
Education and training
- 2012Medical school: Saint Louis University School of Medicine
- 2012Registered with an NPI (national billing number; not a license date)
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
-
Emergency Medicine Physician primary
CA license A180202 (first issued 2022; current) · MO license 2019009735 · NC license 2021-00892 -
Undersea and Hyperbaric Medicine (Emergency Medicine) Physician
NC license 2021-00892
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- John Muir Medical Center - Walnut Creek Campus Walnut Creek, CA
- John Muir Medical Center - Concord Campus Concord, CA
- San Ramon Regional Medical Center San Ramon, CA
Medical groups
- Cep America - California (1,292 clinicians)
- Medamerica Physician Solutions PC (28 clinicians)
- Cep America - Auc PC (16 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
- 623
- Services billed
- 1,487
- Patients’ average age
- 78
| Service | Times | Patients |
|---|---|---|
| Emergency department visit with high level of medical decision making | 265 | 258 |
| Management of oxygen chamber therapy | 232 | 50 |
| Removal of skin and tissue, 20.0 sq cm or less | 126 | 73 |
| Emergency department visit with moderate level of medical decision making | 120 | 119 |
| Established patient office or other outpatient visit, 20-29 minutes | 89 | 78 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 83 | 76 |
| Established patient office or other outpatient visit, 30-39 minutes | 57 | 44 |
| Critical care, first 30-74 minutes | 54 | 54 |
| Removal of skin and tissue, each additional 20.0 sq cm or less | 47 | 12 |
| New patient office or other outpatient visit, 45-59 minutes | 22 | 22 |
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
| Drug | Prescriptions |
|---|---|
| Cephalexin Other prescribers in Durham, NC | 21 |
| Ondansetron Odt (ondansetron) Other prescribers in Durham, NC | 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, 3 companies reported 4 payments worth $439 in total to this clinician.
| Heartflow, Inc. | $306 |
|---|---|
| Shockwave Medical, Inc | $106 |
| Molnlycke Health Care US, LLC | $27.19 |
| Food and Beverage | $439 |
|---|
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.