What is Carol Mahlstedt's NPI number?

Carol Mahlstedt's National Provider Identifier (NPI) is 1851514228, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Carol Mahlstedt's specialty?

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

Where is Carol Mahlstedt located?

Carol Mahlstedt's practice location on file with NPPES is 80 Grove St, Ridgefield, CT 06877-4104.

What is Carol Mahlstedt's phone number?

The practice phone number listed in the NPPES registry for Carol Mahlstedt is (203) 894-1069.

Is Carol Mahlstedt's NPI active?

Yes — Carol Mahlstedt's NPI (1851514228) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Carol Mahlstedt, PSY.D

NPI 1851514228 · Clinical Psychologist · Ridgefield, CT

Carol Mahlstedt, PSY.D is a Clinical Psychologist provider in Ridgefield, CT (NPI 1851514228).

Provider details

NPI number: 1851514228
Entity type: Individual
Primary specialty: Clinical PsychologistBehavioral Health & Social Service Providers
Credential: PSY.D
Sex: Female
Sole proprietor: Yes
License: 002108 (CT)

Practice location

80 Grove St

P.o. 46

Ridgefield, CT 06877-4104

Phone: (203) 894-1069

Street-level locationGet directions

More CT providers

Mailing address

9 Mimosa Ct

Ridgefield, CT 06877-2508

Specialties & taxonomies

Clinical PsychologistPrimary103TC0700XLicense 002108 (CT)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(90/100 index)

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

Registry tenure38% of score
19 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.

Enumerated: 2007-04-11
Last updated: 2007-07-08

Frequently asked questions

What is Carol Mahlstedt's NPI number?: Carol Mahlstedt's National Provider Identifier (NPI) is 1851514228, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Carol Mahlstedt's specialty?: Carol Mahlstedt is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
Where is Carol Mahlstedt located?: Carol Mahlstedt's practice location on file with NPPES is 80 Grove St, Ridgefield, CT 06877-4104.
What is Carol Mahlstedt's phone number?: The practice phone number listed in the NPPES registry for Carol Mahlstedt is (203) 894-1069.
Is Carol Mahlstedt's NPI active?: Yes — Carol Mahlstedt's NPI (1851514228) 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.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions