Dr. John M. Lyons JR., M.D.
Gastroenterology (Gastroenterology Physician)
15004 Innovation Dr
San Diego, CA 92128
Who else practices at this address →
San Diego County includes primary care (1% of residents) and mental health (1% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- University of Southern California Keck School of Medicine (2001)
- Years since graduation
- 25
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 533
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: University of Southern California Keck School of Medicine
- 2007Registered 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 A104484 (first issued 2008; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Scripps Memorial Hospital La Jolla La Jolla, CA
- Scripps Memorial Hospital - Encinitas Encinitas, CA
- Scripps Green Hospital La Jolla, CA
Medical groups
- Scripps Health (1,433 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
- 533
- Services billed
- 1,125
- 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 | 213 | 208 |
| New patient office or other outpatient visit, 45-59 minutes | 138 | 138 |
| Biopsy of large bowel using a flexible endoscope | 130 | 129 |
| Established patient office or other outpatient visit, 30-39 minutes | 112 | 97 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 81 | 80 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 48 | 35 |
| Established patient office or other outpatient visit, 20-29 minutes | 38 | 37 |
| New patient office or other outpatient visit, 30-44 minutes | 36 | 36 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 32 | 32 |
| Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 29 | 29 |
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 San Diego, CA | 160 |
| Pantoprazole Sodium Other prescribers in San Diego, CA | 99 |
| Omeprazole Other prescribers in San Diego, CA | 87 |
| Linzess (linaclotide) Other prescribers in San Diego, CA | 15 |
| Balsalazide Disodium | 14 |
| Mesalamine Other prescribers in San Diego, CA | 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, 13 companies reported 86 payments worth $1,838 in total to this clinician.
| AbbVie Inc. | $452 |
|---|---|
| Janssen Biotech, Inc. | $326 |
| Takeda Pharmaceuticals U.S.A., Inc. | $289 |
| Genzyme Corporation | $124 |
| Ardelyx, Inc. | $102 |
| Phathom Pharmaceuticals, Inc. | $100 |
| Celltrion USA Inc. | $89.89 |
| Pfizer Inc. | $85.53 |
| Food and Beverage | $1,838 |
|---|
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.