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

Dr. Herbert Del Rosario Icasiano, DO

Individual provider Emergency Medicine Physician · NPI 1740772383

Dr. Herbert Del Rosario Icasiano, DO is an Emergency Medicine in Los Alamitos, California. Graduated from William Carey University College of Osteopathic Medicine in 2018, 8 years ago. Practices with Regents of the University Of, a 125-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California and Pennsylvania.

Years since qualifying
8
Trained at
William Carey University College of Osteopathic Medicine
Licensed in
CA, PA
In the registry since
2018
Specialties on file
2
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.

See every abbreviation used in this directory →

Practice location Address checks out

3751 Katella Ave
Los Alamitos, CA 90720-3113
Phone: (562) 598-1311
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 707 E Main St, Middletown, NY 10940-2650 — (845) 333-6333

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 19631 (CA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence OS020260 (PA)

Record details

NPI number1740772383
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 30, 2018
Last updated in NPPESMay 13, 2026
Certification dateMay 13, 2026

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolWILLIAM CAREY UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2018 (8 years in practice)
Group practice Regents Of The University Of — 125 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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