Matthew Louie, M.D.
NPI 1609167311 · Psychiatry Physician · Lancaster, CA
Matthew Louie, M.D. is a Psychiatry Physician provider in Lancaster, CA (NPI 1609167311).
Provider details
- NPI number
- 1609167311
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A127353 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
15 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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.
$171 across 2 records (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
Additional practice locations (1)
- 2737 W Cecil AveDelano, CA 93215-1821Phone: (661) 721-2345
Registry dates
- Enumerated
- 2011-04-28
- Last updated
- 2018-12-28
Frequently asked questions
- What is Matthew Louie's NPI number?
- Matthew Louie's National Provider Identifier (NPI) is 1609167311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Louie's specialty?
- Matthew Louie is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Louie located?
- Matthew Louie's practice location on file with NPPES is 349a E Avenue K6, Lancaster, CA 93535-4548.
- What is Matthew Louie's phone number?
- The practice phone number listed in the NPPES registry for Matthew Louie is (661) 723-4260.
- Is Matthew Louie's NPI active?
- Yes — Matthew Louie's NPI (1609167311) is active in the NPPES registry as of the last update on 2018-12-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.