Margaret Martin, PH.D.
NPI 1598997447 · Psychologist · Riverside, CA
Margaret Martin, PH.D. is a Psychologist provider in Riverside, CA (NPI 1598997447).
Provider details
- NPI number
- 1598997447
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY 11799 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
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
16 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
- 2009-08-11
- Last updated
- 2009-08-11
Frequently asked questions
- What is Margaret Martin's NPI number?
- Margaret Martin's National Provider Identifier (NPI) is 1598997447, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Martin's specialty?
- Margaret Martin is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Margaret Martin located?
- Margaret Martin's practice location on file with NPPES is 769 W Blaine St, Riverside, CA 92507-3970.
- What is Margaret Martin's phone number?
- The practice phone number listed in the NPPES registry for Margaret Martin is (951) 358-4523.
- Is Margaret Martin's NPI active?
- Yes — Margaret Martin's NPI (1598997447) is active in the NPPES registry as of the last update on 2009-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.