Robert Ozaki, D.O.
NPI 1851358915 · Sports Medicine (Family Medicine) Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Ozaki, D.O. is a Sports Medicine (Family Medicine) Physician provider in Walnut Creek, CA (NPI 1851358915).
Provider details
- NPI number
- 1851358915
- Entity type
- Individual
- Primary specialty
- Sports Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 20A8665 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 97 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 700 | 245 |
| Lisinopril | 293 | 107 |
| Losartan Potassium | 292 | 113 |
| Amlodipine Besylate | 280 | 109 |
| Levothyroxine Sodium | 188 | 71 |
| Atenolol | 175 | 63 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-01
- Last updated
- 2022-01-11
- Certified
- 2022-01-11
Frequently asked questions
- What is Robert Ozaki's NPI number?
- Robert Ozaki's National Provider Identifier (NPI) is 1851358915, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Ozaki's specialty?
- Robert Ozaki is listed in the NPPES registry with a primary specialty of Sports Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Ozaki located?
- Robert Ozaki's practice location on file with NPPES is 320 Lennon Ln, Walnut Creek, CA 94598-2419.
- What is Robert Ozaki's phone number?
- The practice phone number listed in the NPPES registry for Robert Ozaki is (925) 532-4392.
- Does Robert Ozaki accept Medicare?
- Robert Ozaki is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Ozaki's NPI active?
- Yes — Robert Ozaki's NPI (1851358915) is active in the NPPES registry as of the last update on 2022-01-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.