Michael Irwin, MD
NPI 1134220718 · Psychiatry Physician · Los Angeles, CA
Michael Irwin, MD is a Psychiatry Physician provider in Los Angeles, CA (NPI 1134220718).
Provider details
- NPI number
- 1134220718
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G50031 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,438 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
- 2006-09-26
- Last updated
- 2012-04-27
Frequently asked questions
- What is Michael Irwin's NPI number?
- Michael Irwin's National Provider Identifier (NPI) is 1134220718, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Irwin's specialty?
- Michael Irwin is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Irwin located?
- Michael Irwin's practice location on file with NPPES is 300 Medical Plz, Los Angeles, CA 90095-0001.
- What is Michael Irwin's phone number?
- The practice phone number listed in the NPPES registry for Michael Irwin is (310) 825-9989.
- Is Michael Irwin's NPI active?
- Yes — Michael Irwin's NPI (1134220718) is active in the NPPES registry as of the last update on 2012-04-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.