Jack Liu, MD
NPI 1558518258 · Otolaryngology Physician · Riverside, CA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Liu, MD is a Otolaryngology Physician provider in Riverside, CA (NPI 1558518258).
Provider details
- NPI number
- 1558518258
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A129495 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ipratropium Bromide | 93 | 56 |
| Fluticasone Propionate | 53 | 29 |
| Prednisone | 52 | 42 |
| Azelastine Hcl | 50 | 23 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 36 | 27 |
| Ofloxacin | 20 | 18 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 19 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$6 across 1 record (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
- 2008-08-25
- Last updated
- 2021-12-16
Frequently asked questions
- What is Jack Liu's NPI number?
- Jack Liu's National Provider Identifier (NPI) is 1558518258, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Liu's specialty?
- Jack Liu is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Jack Liu located?
- Jack Liu's practice location on file with NPPES is 10800 Magnolia Ave, Riverside, CA 92505-3043.
- What is Jack Liu's phone number?
- The practice phone number listed in the NPPES registry for Jack Liu is (951) 353-4996.
- Does Jack Liu accept Medicare?
- Jack Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jack Liu's NPI active?
- Yes — Jack Liu's NPI (1558518258) is active in the NPPES registry as of the last update on 2021-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.