Janet Messer, PH.D.
NPI 1851385801 · Counseling Psychologist · Tempe, AZ
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Janet Messer, PH.D. is a Counseling Psychologist provider in Tempe, AZ (NPI 1851385801).
Provider details
- NPI number
- 1851385801
- Entity type
- Individual
- Primary specialty
- Counseling PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 3420 (AZ)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
- 2005-09-06
- Last updated
- 2007-07-08
Frequently asked questions
- What is Janet Messer's NPI number?
- Janet Messer's National Provider Identifier (NPI) is 1851385801, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janet Messer's specialty?
- Janet Messer is listed in the NPPES registry with a primary specialty of Counseling Psychologist (Behavioral Health & Social Service Providers).
- Where is Janet Messer located?
- Janet Messer's practice location on file with NPPES is 4659 S Lakeshore Dr, Tempe, AZ 85282-7150.
- What is Janet Messer's phone number?
- The practice phone number listed in the NPPES registry for Janet Messer is (480) 449-3313.
- Does Janet Messer accept Medicare?
- Janet Messer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Janet Messer's NPI active?
- Yes — Janet Messer's NPI (1851385801) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.