Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Derick L Ly, DO, MS

Individual provider Psychiatry Physician · NPI 1962744417

Dr. Derick L Ly, DO, MS is a Psychiatry in Ontario, California. Qualified in 2012, 14 years ago. Practices with County of San Bernardino, a 75-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
14
Licensed in
CA
In the registry since
2013
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.
MS — Master of Science
A graduate science degree.

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Practice location Address checks out

2940 Inland Empire Blvd
Ontario, CA 91764-4898
Phone: (909) 458-1350
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 303 E Vanderbilt Way, San Bernardino, CA 92415-0026 — (909) 252-5149

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 13326 (CA)

Record details

NPI number1962744417
Entity typeIndividual (Type 1)
GenderMale
Credentials DO , MS
Sole proprietorNo
NPI enumeratedMarch 22, 2013
Last updated in NPPESMarch 31, 2025
Certification dateMarch 31, 2025
Mailing address303 E Vanderbilt Way, San Bernardino, CA 92415-0026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice County Of San Bernardino — 75 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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