Ryokei Imai, MD
NPI 1003975608 · Internal Medicine Physician · Harbor City, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryokei Imai, MD is a Internal Medicine Physician provider in Harbor City, CA (NPI 1003975608).
Provider details
- NPI number
- 1003975608
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A71946 (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
19 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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 30 | 24 |
| Atorvastatin Calcium | 27 | — |
| Amlodipine Besylate | 24 | 11 |
| Hydralazine Hcl | 22 | 12 |
| Losartan Potassium | 14 | — |
| Prednisone | 13 | 13 |
| Potassium Chloride | 13 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-08
- Last updated
- 2021-12-01
Frequently asked questions
- What is Ryokei Imai's NPI number?
- Ryokei Imai's National Provider Identifier (NPI) is 1003975608, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryokei Imai's specialty?
- Ryokei Imai is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ryokei Imai located?
- Ryokei Imai's practice location on file with NPPES is 25825 Vermont Ave, Harbor City, CA 90710-3518.
- What is Ryokei Imai's phone number?
- The practice phone number listed in the NPPES registry for Ryokei Imai is (310) 325-5111.
- Does Ryokei Imai accept Medicare?
- Ryokei Imai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryokei Imai's NPI active?
- Yes — Ryokei Imai's NPI (1003975608) is active in the NPPES registry as of the last update on 2021-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.