Marla Mcmahon, PSY.D.
NPI 1538309588 · Clinical Psychologist · Sacramento, CA
Marla Mcmahon, PSY.D. is a Clinical Psychologist provider in Sacramento, CA (NPI 1538309588).
Provider details
- NPI number
- 1538309588
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY15936 (CA)
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
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
- 2009-03-04
- Last updated
- 2009-03-04
Frequently asked questions
- What is Marla Mcmahon's NPI number?
- Marla Mcmahon's National Provider Identifier (NPI) is 1538309588, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marla Mcmahon's specialty?
- Marla Mcmahon is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Marla Mcmahon located?
- Marla Mcmahon's practice location on file with NPPES is 425 University Ave, Sacramento, CA 95825-6520.
- What is Marla Mcmahon's phone number?
- The practice phone number listed in the NPPES registry for Marla Mcmahon is (916) 290-3994.
- Is Marla Mcmahon's NPI active?
- Yes — Marla Mcmahon's NPI (1538309588) is active in the NPPES registry as of the last update on 2009-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.