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

Siena Elisa Nadal Ona, MD

Individual provider Spinal Cord Injury Medicine Physician · NPI 1174963458

Siena Elisa Nadal Ona, MD is a Physical Medicine and Rehabilitation in Long Beach, California. Qualified in 2010, 16 years ago. Practices with Dieumy Michelle Thai M D Inc, a 4-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in California and Illinois.

Years since qualifying
16
Licensed in
CA, IL
In the registry since
2013
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2801 Atlantic Ave
Long Beach, CA 90806-1701
Phone: (562) 933-2000
Show map & directions

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

Additional practice locations (3)

  • 408 Lincoln Dr, Herrin, IL 62948 — (618) 351-4980
  • 2100 Stantonsburg Rd, Greenville, NC 27834-2818 — (252) 847-7907
  • 1250 E. Marshall Street, Richmond, VA 23298-0677 — (804) 828-8693

Specialties & licences

Spinal Cord Injury Medicine Physician (primary) Taxonomy 2081P0004X · Licence A172213 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X
Physical Medicine & Rehabilitation Physician Taxonomy 208100000X · Licence 036-145373 (IL)

Record details

NPI number1174963458
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 1, 2013
Last updated in NPPESMay 21, 2026
Certification dateMay 21, 2026

Medicare enrollment

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

Medicare specialtyPHYSICAL MEDICINE AND REHABILITATION
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Dieumy Michelle Thai M D Inc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Long Beach