Dr. Mark J. Williams
Pain Medicine (Interventional Pain Medicine Physician)
1250 16th St
Santa Monica, CA 90404
Who else practices at this address →
Los Angeles County includes primary care (7% of residents) and mental health (13% of residents) shortage areas. About shortage areas
At a glance
- In the NPI registry since
- 2022
Licensed in California since 2026, 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
- 2022Registered with an NPI (national billing number; not a license date)
Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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
-
Interventional Pain Medicine Physician primary
CA license A206829 (first issued 2026; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Payments from drug and device companies
In 2025, 1 companies reported 2 payments worth $49.03 in total to this clinician.
| Ipsen Biopharmaceuticals, Inc | $49.03 |
|---|
| Food and Beverage | $49.03 |
|---|
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.