Mary Lou Alarcon, RN
NPI 1750531133 · Psychiatric/Mental Health Registered Nurse · Arcadia, CA
Mary Lou Alarcon, RN is a Psychiatric/Mental Health Registered Nurse provider in Arcadia, CA (NPI 1750531133).
Provider details
- NPI number
- 1750531133
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 566906 (CA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2008-09-23
- Last updated
- 2008-09-23
Frequently asked questions
- What is Mary Lou Alarcon's NPI number?
- Mary Lou Alarcon's National Provider Identifier (NPI) is 1750531133, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Lou Alarcon's specialty?
- Mary Lou Alarcon is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Registered Nurse (Nursing Service Providers).
- Where is Mary Lou Alarcon located?
- Mary Lou Alarcon's practice location on file with NPPES is 330 E Live Oak Ave, Arcadia, CA 91006-5617.
- What is Mary Lou Alarcon's phone number?
- The practice phone number listed in the NPPES registry for Mary Lou Alarcon is (626) 821-5858.
- Is Mary Lou Alarcon's NPI active?
- Yes — Mary Lou Alarcon's NPI (1750531133) is active in the NPPES registry as of the last update on 2008-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.