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

Dr. Ronald Steven Mandel, DO

Individual provider Family Medicine Physician · NPI 1659335420

Dr. Ronald Steven Mandel, DO is a Family Practice in Aliso Viejo, California. Graduated from Midwestern University, Chicago College of Osteopathic Med in 1975, 51 years ago. Accepts Medicare assignment. Licensed in California.

Years since qualifying
51
Trained at
Midwestern University, Chicago College of Osteopathic Med
Licensed in
CA
In the registry since
2006
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.

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Practice location Address checks out

24502 Pacific Park Dr
Aliso Viejo, CA 92656-3043
Phone: (949) 362-2121
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 20A4149 (CA)

Record details

NPI number1659335420
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 17, 2006
Last updated in NPPESJuly 16, 2009
Mailing addressP.O. Box 3424, Seal Beach, CA 90740

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolMIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduated 1975 (51 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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