Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MRS. PEGGY D MACLIN LCPC, NCC
NPI 1023738531
Counselor - Professional in Largo, MD

Active since September 02, 2022
1300 MERCANTILE LN, LARGO, MD 20774(301) 583-0001 Get Directions Write a Review

NPPES record last updated: June 11, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mrs. Peggy D Maclin Lcpc, Ncc NPPES

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

MRS. PEGGY D MACLIN LCPC, NCC (NPI 1023738531) is an individual professional provider in Largo, Maryland and active in the NPI registry since September 2022.

NPPES Registry Identity

NPI1023738531
Entity TypeIndividualFemale
Primary Taxonomy101YP2500X
Provider Legal NameMRS. PEGGY D MACLINCredential: LCPC, NCC
Location Address1300 MERCANTILE LNLargo, MD 20774-5327
Mailing Address1300 Mercantile LnLargo, MD 20774-5327 · (301) 583-0001
Sole ProprietorYes
Enumeration DateSeptember 2, 2022
Last NPPES UpdateJune 11, 2026
NPPES CertifiedJune 11, 2026
NPI 1023738531 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
1300 MERCANTILE LN, Largo, MD 20774

Other Providers at the Same Location NPPES 20

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

Counselor (Professional)
1300 MERCANTILE LN, 141-D
LARGO, MD 20774
Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
1300 MERCANTILE LN, STE 194
UPPER MARLBORO, MD 20774
Home Health
1300 MERCANTILE LN, SUITE 138E
LARGO, MD 20774
Counselor (Mental Health)
1300 MERCANTILE LN, SUITE 141-D
LARGO, MD 20774
Social Worker (Clinical)
1300 MERCANTILE LN, SUITE 139-RR
LARGO, MD 20774
Counselor (Professional)
1300 MERCANTILE LN
LARGO, MD 20774
Social Worker (Clinical)
1300 MERCANTILE LN
LARGO, MD 20774
Nurse Anesthetist, Certified Registered
1300 MERCANTILE LN
LARGO, MD 20774

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 Peggy Maclin's NPI number?

The NPI number for Peggy Maclin is 1023738531. It was assigned to this individual provider in the NPPES registry on September 2, 2022.

Where is Peggy Maclin located?

Peggy Maclin practices at 1300 Mercantile Ln, Largo, MD 20774. The listed phone number is (301) 583-0001.

What is Peggy Maclin's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

When was this NPI record last updated?

The NPPES record for Peggy Maclin was last updated on June 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 57 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.