Hei Ieong Lou, PA-C
NPI 1225857642 · Physician Assistant · Mountain View, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hei Ieong Lou, PA-C is a Physician Assistant provider in Mountain View, CA (NPI 1225857642).
Provider details
- NPI number
- 1225857642
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1226155 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
1 yr 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22 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
- 2024-10-03
- Last updated
- 2025-05-29
- Certified
- 2025-05-29
Frequently asked questions
- What is Hei Ieong Lou's NPI number?
- Hei Ieong Lou's National Provider Identifier (NPI) is 1225857642, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hei Ieong Lou's specialty?
- Hei Ieong Lou is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Hei Ieong Lou located?
- Hei Ieong Lou's practice location on file with NPPES is 525 South Dr Ste 211, Mountain View, CA 94040-4211.
- What is Hei Ieong Lou's phone number?
- The practice phone number listed in the NPPES registry for Hei Ieong Lou is (408) 495-5770.
- Does Hei Ieong Lou accept Medicare?
- Hei Ieong Lou is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hei Ieong Lou's NPI active?
- Yes — Hei Ieong Lou's NPI (1225857642) is active in the NPPES registry as of the last update on 2025-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.