Louis Marchioli, M.D.
NPI 1164414603 · Allergy & Immunology Physician · La Mirada, CA
Louis Marchioli, M.D. is a Allergy & Immunology Physician provider in La Mirada, CA (NPI 1164414603).
Provider details
- NPI number
- 1164414603
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- C35395 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-19
- Last updated
- 2017-03-07
Frequently asked questions
- What is Louis Marchioli's NPI number?
- Louis Marchioli's National Provider Identifier (NPI) is 1164414603, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Marchioli's specialty?
- Louis Marchioli is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Marchioli located?
- Louis Marchioli's practice location on file with NPPES is 15040 Imperial Hwy, La Mirada, CA 90638-1301.
- What is Louis Marchioli's phone number?
- The practice phone number listed in the NPPES registry for Louis Marchioli is (562) 902-1014.
- Is Louis Marchioli's NPI active?
- Yes — Louis Marchioli's NPI (1164414603) is active in the NPPES registry as of the last update on 2017-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.