IndividualActive
Melissa Hagan
NPI 1821525791 · Behavior Analyst · Monrovia, CA
Melissa Hagan is a Behavior Analyst provider in Monrovia, CA (NPI 1821525791).
Provider details
- NPI number
- 1821525791
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(63/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
83% 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
612 S Myrtle Ave Ste 100
Monrovia, CA 91016-3406
Phone: (714) 944-8456
Street-level locationGet directions
Mailing address
431 Wellesley Dr Apt 108
Corona, CA 92879-5946
Registry dates
- Enumerated
- 2017-05-22
- Last updated
- 2018-06-16
Frequently asked questions
- What is Melissa Hagan's NPI number?
- Melissa Hagan's National Provider Identifier (NPI) is 1821525791, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Hagan's specialty?
- Melissa Hagan is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Melissa Hagan located?
- Melissa Hagan's practice location on file with NPPES is 612 S Myrtle Ave Ste 100, Monrovia, CA 91016-3406.
- What is Melissa Hagan's phone number?
- The practice phone number listed in the NPPES registry for Melissa Hagan is (714) 944-8456.
- Is Melissa Hagan's NPI active?
- Yes — Melissa Hagan's NPI (1821525791) is active in the NPPES registry as of the last update on 2018-06-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.