Ryan Nakasone, D.C., P.A.-C
NPI 1043207459 · Physician Assistant · Oxnard, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Nakasone, D.C., P.A.-C is a Physician Assistant provider in Oxnard, CA (NPI 1043207459).
Provider details
- NPI number
- 1043207459
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- D.C., P.A.-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- PA22126 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Chiropractic Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 40 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 1,027 | 118 |
| Gabapentin | 369 | 55 |
| Oxycodone Hcl | 362 | 58 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 296 | 41 |
| Pregabalin | 263 | 62 |
| Buprenorphine Hclbrand: Belbuca | 199 | 40 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,472 across 135 records (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
Registry dates
- Enumerated
- 2005-09-30
- Last updated
- 2026-04-24
- Certified
- 2026-04-24
Frequently asked questions
- What is Ryan Nakasone's NPI number?
- Ryan Nakasone's National Provider Identifier (NPI) is 1043207459, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Nakasone's specialty?
- Ryan Nakasone is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ryan Nakasone located?
- Ryan Nakasone's practice location on file with NPPES is 1901 Outlet Center Dr Ste 210, Oxnard, CA 93036-0666.
- What is Ryan Nakasone's phone number?
- The practice phone number listed in the NPPES registry for Ryan Nakasone is (805) 983-0425.
- Does Ryan Nakasone accept Medicare?
- Ryan Nakasone is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Nakasone's NPI active?
- Yes — Ryan Nakasone's NPI (1043207459) is active in the NPPES registry as of the last update on 2026-04-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.