Jonathan Lyu, DO
NPI 1447888698 · Geriatric Medicine (Internal Medicine) Physician · Sylmar, CA
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Lyu, DO is a Geriatric Medicine (Internal Medicine) Physician provider in Sylmar, CA (NPI 1447888698).
Provider details
- NPI number
- 1447888698
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 21026 (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
6 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 |
|---|---|---|
| Memantine Hcl | 99 | 66 |
| Donepezil Hcl | 30 | 26 |
| Sertraline Hcl | 23 | 20 |
| Amlodipine Besylate | 22 | — |
| Trazodone Hcl | 15 | 13 |
| Lactulose | 14 | — |
| Permethrin | 14 | — |
| Warfarin Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-03-31
- Last updated
- 2025-03-06
- Certified
- 2025-03-06
Frequently asked questions
- What is Jonathan Lyu's NPI number?
- Jonathan Lyu's National Provider Identifier (NPI) is 1447888698, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Lyu's specialty?
- Jonathan Lyu is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Lyu located?
- Jonathan Lyu's practice location on file with NPPES is 14445 Olive View Dr, Sylmar, CA 91342-1437.
- What is Jonathan Lyu's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Lyu is (747) 210-3205.
- Does Jonathan Lyu accept Medicare?
- Jonathan Lyu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Lyu's NPI active?
- Yes — Jonathan Lyu's NPI (1447888698) is active in the NPPES registry as of the last update on 2025-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.