Sai-Hung Hui, M.D.
NPI 1710166640 · Emergency Medicine Physician · Sylmar, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sai-Hung Hui, M.D. is a Emergency Medicine Physician provider in Sylmar, CA (NPI 1710166640).
Provider details
- NPI number
- 1710166640
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A97996 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
34 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 23 | $122 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 11 | $72 |
Typical Medicare-allowed amounts for these services range $72–$122 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-10-28
- Last updated
- 2021-11-23
- Certified
- 2021-11-23
Frequently asked questions
- What is Sai-Hung Hui's NPI number?
- Sai-Hung Hui's National Provider Identifier (NPI) is 1710166640, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sai-Hung Hui's specialty?
- Sai-Hung Hui is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sai-Hung Hui located?
- Sai-Hung Hui's practice location on file with NPPES is 14445 Olive View Dr, Sylmar, CA 91342-1437.
- What is Sai-Hung Hui's phone number?
- The practice phone number listed in the NPPES registry for Sai-Hung Hui is (818) 364-3107.
- Does Sai-Hung Hui accept Medicare?
- Sai-Hung Hui is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sai-Hung Hui's NPI active?
- Yes — Sai-Hung Hui's NPI (1710166640) is active in the NPPES registry as of the last update on 2021-11-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.