Dr. Erick P. Chan, MD
Gastroenterology (Gastroenterology Physician)
795 El Camino Real, Level 2, Lee Building, Palo Alto Medical Foundation
Palo Alto, CA 94301
Who else practices at this address →
Santa Clara County includes mental health (13% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- Georgetown University School of Medicine (2001)
- Years since graduation
- 25
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 583
Licensed in California since 2008, 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
- 2001Medical school: Georgetown 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
-
Gastroenterology Physician primary
CA license A104264 (first issued 2008; current) · PA license MD426035
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Stanford Health Care Stanford, CA
- Peninsula Medical Center Burlingame, CA
Medical groups
- Sutter Bay Medical Foundation (3,829 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
- 583
- Services billed
- 1,530
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 282 | 280 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 251 | 251 |
| Biopsy of large bowel using a flexible endoscope | 159 | 159 |
| Established patient office or other outpatient visit, 40-54 minutes | 111 | 96 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 104 | 104 |
| Established patient office or other outpatient visit, 30-39 minutes | 69 | 67 |
| Measurement of liver stiffness | 69 | 67 |
| Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 56 | 25 |
| Removal of large bowel tissue using a flexible endoscope | 30 | 30 |
| New patient office or other outpatient visit, 45-59 minutes | 24 | 24 |
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 |
|---|---|
| Sod Sulf-Potass Sulf-Mag Sulf (sodium, potassium,mag sulfates) Other prescribers in Palo Alto, CA | 284 |
| Omeprazole Other prescribers in Palo Alto, CA | 107 |
| Ursodiol Other prescribers in Palo Alto, CA | 46 |
| Vemlidy (tenofovir alafenamide) | 43 |
| Entecavir | 40 |
| Peg 3350-Electrolyte (sodium chloride/nahco3/kcl/peg) | 31 |
| Tenofovir Disoproxil Fumarate | 30 |
| Linzess (linaclotide) Other prescribers in Palo Alto, CA | 24 |
| Pantoprazole Sodium Other prescribers in Palo Alto, CA | 21 |
| Famotidine Other prescribers in Palo Alto, CA | 15 |
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, 5 companies reported 6 payments worth $204 in total to this clinician.
| Lilly USA, LLC | $68.13 |
|---|---|
| GlaxoSmithKline, LLC. | $57.09 |
| Novo Nordisk Inc | $32.40 |
| AbbVie Inc. | $26.89 |
| Janssen Biotech, Inc. | $19.90 |
| Food and Beverage | $204 |
|---|
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.