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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

GWENDOLYN DI DOMENICO
NPI 1821900523
Counselor - Mental Health in Littleton, CO

Active since September 18, 2026
5500 S SYCAMORE ST STE 100, LITTLETON, CO 80120(303) 730-8858 Get Directions Write a Review

NPPES record added: September 18, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

About Gwendolyn Di Domenico NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GWENDOLYN DI DOMENICO (NPI 1821900523) is an individual mental health provider in Littleton, Colorado, licensed in Colorado (LSW0009925818) and active in the NPI registry since September 2026.

NPPES Registry Identity

NPI1821900523
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameGWENDOLYN DI DOMENICO
Location Address5500 S SYCAMORE ST STE 100Littleton, CO 80120-1132
Mailing Address116 Inverness Dr E Ste 105Englewood, CO 80112-5125 · (303) 730-8858
Phone(303) 730-8858
Sole ProprietorNo
Enumeration DateSeptember 18, 2026
NPPES CertifiedSeptember 18, 2026
✔ NPI 1821900523 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in CO · LSW0009925818
5500 S SYCAMORE ST STE 100, Littleton, CO 80120
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Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ARAPAHOE MENTAL HEALTH CENTER, INC
Pharmacy (Long Term Care Pharmacy)
5500 S SYCAMORE ST STE 100
LITTLETON, CO 80120
Arapahoe County (303) 797-2500
MRS. BRANDEE L. BUTT PHARMD
Pharmacist
5500 S SYCAMORE ST STE 100
LITTLETON, CO 80120
Arapahoe County (303) 797-2500
MORGAN RAYE GARLINGTON PHARMD
Pharmacist
5500 S SYCAMORE ST STE 100
LITTLETON, CO 80120
Arapahoe County (303) 797-2500
SOPHIE DANIELLE DIDIER PHARM D.
Pharmacist
5500 S SYCAMORE ST STE 100
LITTLETON, CO 80120
Arapahoe County (303) 797-2500
DR. JOHN B LEHN PHARMD
Pharmacist
5500 S SYCAMORE ST STE 100
LITTLETON, CO 80120
Arapahoe County (303) 797-2500

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gwendolyn Di Domenico's NPI number?

The NPI number for Gwendolyn Di Domenico is 1821900523. It was assigned to this individual provider in the NPPES registry on September 18, 2026.

Where is Gwendolyn Di Domenico located?

Gwendolyn Di Domenico practices at 5500 S Sycamore St Ste 100, Littleton, CO 80120. The listed phone number is (303) 730-8858.

What is Gwendolyn Di Domenico's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Gwendolyn Di Domenico was last updated on September 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.