Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. John Oneil Simmonds, MD

Individual provider Orthopaedic Surgery Physician · NPI 1801195912

Dr. John Oneil Simmonds, MD is an Orthopedic Surgery in Los Angeles, California. Graduated from Howard University College of Medicine in 2001, 25 years ago. Practices with Harbor Comprehensive Health Inc, a 2-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
25
Trained at
Howard University College of Medicine
Licensed in
CA
In the registry since
2011
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

11901 Santa Monica Blvd Ste 620
Los Angeles, CA 90025-5189
Phone: (310) 614-2663
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence A100364 (CA)

Record details

NPI number1801195912
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 15, 2011
Last updated in NPPESFebruary 26, 2021
Certification dateFebruary 26, 2021

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolHOWARD UNIVERSITY COLLEGE OF MEDICINE
Graduated 2001 (25 years in practice)
Group practice Harbor Comprehensive Health Inc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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