Siena Elisa Ona, M.D.
NPI 1174963458 · Spinal Cord Injury Medicine Physician · Long Beach, CA
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siena Elisa Ona, M.D. is a Spinal Cord Injury Medicine Physician provider in Long Beach, CA (NPI 1174963458).
Provider details
- NPI number
- 1174963458
- Entity type
- Individual
- Primary specialty
- Spinal Cord Injury Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A172213 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,342 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 913 | $87 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 328 | $130 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 65 | $191 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 36 | $54 |
Typical Medicare-allowed amounts for these services range $54–$191 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$146 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (3)
- 408 Lincoln DrHerrin, IL 62948Phone: (618) 351-4980
- 2100 Stantonsburg RdGreenville, NC 27834-2818Phone: (252) 847-7907Fax: (252) 847-0840
- 1250 E. Marshall StreetPo Box 98677Richmond, VA 23298-0677Phone: (804) 828-8693Fax: (804) 828-0951
Registry dates
- Enumerated
- 2013-07-01
- Last updated
- 2026-05-21
- Certified
- 2026-05-21
Frequently asked questions
- What is Siena Elisa Ona's NPI number?
- Siena Elisa Ona's National Provider Identifier (NPI) is 1174963458, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siena Elisa Ona's specialty?
- Siena Elisa Ona is listed in the NPPES registry with a primary specialty of Spinal Cord Injury Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Siena Elisa Ona located?
- Siena Elisa Ona's practice location on file with NPPES is 2801 Atlantic Ave, Long Beach, CA 90806-1701.
- What is Siena Elisa Ona's phone number?
- The practice phone number listed in the NPPES registry for Siena Elisa Ona is (562) 933-2000.
- Does Siena Elisa Ona accept Medicare?
- Siena Elisa Ona is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siena Elisa Ona's NPI active?
- Yes — Siena Elisa Ona's NPI (1174963458) is active in the NPPES registry as of the last update on 2026-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.