What is Mary Nelson's NPI number?

Mary Nelson's National Provider Identifier (NPI) is 1427928050, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mary Nelson's specialty?

Mary Nelson is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).

Where is Mary Nelson located?

Mary Nelson's practice location on file with NPPES is 10311 Forest Brook Ln Apt D, Saint Louis, MO 63146-5844.

What is Mary Nelson's phone number?

The practice phone number listed in the NPPES registry for Mary Nelson is (775) 990-3106.

Is Mary Nelson's NPI active?

Yes — Mary Nelson's NPI (1427928050) is active in the NPPES registry as of the last update on 2025-12-08.

IndividualActive

Mary Nelson, PHD.

NPI 1427928050 · Psychologist · Saint Louis, MO

Mary Nelson, PHD. is a Psychologist provider in Saint Louis, MO (NPI 1427928050).

Provider details

NPI number: 1427928050
Entity type: Individual
Primary specialty: PsychologistBehavioral Health & Social Service Providers
Credential: PHD.
Sex: Female
Sole proprietor: Yes
License: 2010009608 (MO)

Specialties & taxonomies

PsychologistPrimary103T00000XLicense 2010009608 (MO)
Behavioral Health & Social Service Providers

Profile Score

Established profile(54/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in 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

10311 Forest Brook Ln Apt D

Saint Louis, MO 63146-5844

Phone: (775) 990-3106

Street-level locationGet directions

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Mailing address