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SIENA ELISA NADAL ONA M.D.
NPI 1174963458
Physical Medicine & Rehabilitation - Spinal Cord Injury Medicine in Long Beach, CA

Active since July 01, 2013PECOS EnrolledAccepts Medicare Assignment
2801 ATLANTIC AVE, LONG BEACH, CA 90806(562) 933-2000 Get Directions Write a Review

NPPES record last updated: May 21, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 21, 2026, Nov 8, 2018, Jun 26, 2018 and 3 more (6 updates tracked since 2017).

About Siena Elisa Nadal Ona M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SIENA ELISA NADAL ONA M.D. (NPI 1174963458) is an individual spinal cord injury medicine provider in Long Beach, California, licensed in California (A172213) and active in the NPI registry since July 2013. She is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Other (2010).

NPPES Registry Identity

NPI1174963458
Entity TypeIndividualFemale
Primary Taxonomy2081P0004X
Provider Legal NameSIENA ELISA NADAL ONACredential: M.D.
Location Address2801 ATLANTIC AVELong Beach, CA 90806-1701
Mailing Address7131 Yorktown Ave # 1016Huntington Beach, CA 92648-2464
Phone(562) 933-2000
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateJuly 1, 2013
Last NPPES UpdateMay 21, 20266 updates tracked since enumeration
NPPES CertifiedMay 21, 2026
✔ NPI 1174963458 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPhysical Medicine & Rehabilitation · Spinal Cord Injury MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2081P0004X
License✔ Licensed in CA · A172213
Definition
A physician who addresses the prevention, diagnosis, treatment and management of traumatic spinal cord injury and non-traumatic etiologies of spinal cord dysfunction by working in an interdisciplinary manner. Care is provided to patients of all ages on a lifelong basis and covers related medical, physical, psychological and vocational disabilities and complications.
Also ListedPhysical Medicine & RehabilitationTaxonomy 208100000X · License 036-145373 (IL)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
2801 ATLANTIC AVE, Long Beach, CA 90806
Open in Google Maps ↗

Secondary Practice Locations 3

Location 1408 Lincoln DrHerrin, IL 62948 · Phone (618) 351-4980
Location 22100 Stantonsburg RdGreenville, NC 27834-2818 · Phone (252) 847-7907 · Fax (252) 847-0840
Location 31250 E. Marshall Street, PO Box 98677Richmond, VA 23298-0677 · Phone (804) 828-8693 · Fax (804) 828-0951

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Siena Elisa Nadal Ona M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5294034369
PECOS Enrollment IDI20210928003199
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
913 services157 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
328 services112 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
65 services56 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
36 services22 patients

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DAVID C KIM M.D.
Pediatrics (Neonatal-Perinatal Medicine)
2801 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (562) 933-8100
MRS. ELISHA MARIE MARTIN MSN, NP
Nurse Practitioner (Acute Care)
2801 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (310) 350-8902
MICHAEL A RAYA MD
Internal Medicine
2801 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (562) 426-3333
GISELLE ABUYUAN GARINGAN PA
Physician Assistant
2801 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (562) 933-2000
ELIZABETH MARY ZAAROUR
Physician Assistant
2801 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (562) 249-4575
LONG BEACH MEMORIAL MEDICAL
Pharmacy (Community/Retail Pharmacy)
2801 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (562) 933-0330
GLENN LEVINE M.D.
Pediatrics (Pediatric Critical Care Medicine)
2801 ATLANTIC AVE, 3RD FLOOR
LONG BEACH, CA 90806
Los Angeles County (562) 933-8743
DAVID KHOA CAO DO
Internal Medicine
2801 ATLANTIC AVE
LONG BEACH, CA 90806
Los Angeles County (562) 426-3333

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Siena Elisa Ona's NPI number?

The NPI number for Siena Elisa Ona is 1174963458. It was assigned to this individual provider in the NPPES registry on July 1, 2013.

Where is Siena Elisa Ona located?

Siena Elisa Ona practices at 2801 Atlantic Ave, Long Beach, CA 90806. The listed phone number is (562) 933-2000.

What is Siena Elisa Ona's specialty?

The primary specialty registered for this NPI is Physical Medicine & Rehabilitation, specializing in Spinal Cord Injury Medicine, with taxonomy code 2081P0004X.

Is Siena Elisa Ona enrolled in Medicare?

Yes. Siena Elisa Ona is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Siena Elisa Ona was last updated on May 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.