Jeffrey Shimoyama, MD
NPI 1245307255 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Shimoyama, MD is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1245307255).
Provider details
- NPI number
- 1245307255
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G63937 (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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 47 | 47 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 46 | 45 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 36 | 34 |
| Lidocaine Hclbrand: Lidocaine Hcl Viscous | 27 | 24 |
| Triamcinolone Acetonide | 16 | 15 |
| Cefuroxime Axetilbrand: Cefuroxime | 15 | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-29
- Last updated
- 2021-12-02
Frequently asked questions
- What is Jeffrey Shimoyama's NPI number?
- Jeffrey Shimoyama's National Provider Identifier (NPI) is 1245307255, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Shimoyama's specialty?
- Jeffrey Shimoyama is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Shimoyama located?
- Jeffrey Shimoyama's practice location on file with NPPES is 6041 Cadillac Ave, Los Angeles, CA 90034-1702.
- What is Jeffrey Shimoyama's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Shimoyama is (323) 857-2000.
- Does Jeffrey Shimoyama accept Medicare?
- Jeffrey Shimoyama is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Shimoyama's NPI active?
- Yes — Jeffrey Shimoyama's NPI (1245307255) is active in the NPPES registry as of the last update on 2021-12-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.