ARDITH L WELWOOD LMHC
NPI 1720193394
Counselor - Mental Health in Cambridge, MA

Active since August 21, 2006Opted out of Medicare · through Nov 11, 2027
1679 MASSACHUSETTS AVE, CAMBRIDGE, MA 02138(617) 599-2161 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Ardith L Welwood Lmhc NPPES

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

ARDITH L WELWOOD LMHC (NPI 1720193394) is an individual mental health provider in Cambridge, Massachusetts, licensed in Massachusetts (4604) and active in the NPI registry since August 2006. She has opted out of Medicare through November 11, 2027 and is a graduate of Other (1998).

NPPES Registry Identity

NPI1720193394
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameARDITH L WELWOODCredential: LMHC
Location Address1679 MASSACHUSETTS AVECambridge, MA 02138-1807
Mailing Address1679 Massachusetts AveCambridge, MA 02138-1807 · (617) 599-2161
Sole ProprietorYes
Medical School CMSOtherGraduated 1998
Enumeration DateAugust 21, 2006
Last NPPES UpdateJuly 21, 2022
NPI 1720193394 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 MA · 4604
1679 MASSACHUSETTS AVE, Cambridge, MA 02138

Other Identifiers 1

OtherLM0772MA · Bcbs

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Opted out of Medicare

Ardith L Welwood Lmhc has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from November 11, 2025 through November 11, 2027.

Opt-Out Effective DateNovember 11, 2025
Opt-Out In Effect ThroughNovember 11, 2027Opt-out affidavits renew automatically every two years unless cancelled

Other Providers at the Same Location NPPES 12

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

Psychologist (Clinical)
1679 MASSACHUSETTS AVE
CAMBRIDGE, MA 02138
Psychologist (Clinical)
1679 MASSACHUSETTS AVE, SUITE 1
CAMBRIDGE, MA 02138
Social Worker (Clinical)
1679 MASSACHUSETTS AVE
CAMBRIDGE, MA 02138
Psychologist (Clinical)
1679 MASSACHUSETTS AVE
CAMBRIDGE, MA 02138
Psychologist (Clinical)
1679 MASSACHUSETTS AVE, FIRST FLOOR
CAMBRIDGE, MA 02138
Psychologist (Clinical)
1679 MASSACHUSETTS AVE, FIRST FLOOR
CAMBRIDGE, MA 02138
Psychologist (Clinical)
1679 MASSACHUSETTS AVE
CAMBRIDGE, MA 02138
Psychologist (Clinical)
1679 MASSACHUSETTS AVE
CAMBRIDGE, MA 02138

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 Ardith Welwood's NPI number?

The NPI number for Ardith Welwood is 1720193394. It was assigned to this individual provider in the NPPES registry on August 21, 2006.

Where is Ardith Welwood located?

Ardith Welwood practices at 1679 Massachusetts Ave, Cambridge, MA 02138. The listed phone number is (617) 599-2161.

What is Ardith Welwood's specialty?

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

Is Ardith Welwood enrolled in Medicare?

No. Ardith Welwood has opted out of Medicare through November 11, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Ardith Welwood was last updated on July 21, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.