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MS. KAREN LEE WELCH LMHC
NPI 1902945678
Counselor - Mental Health in Waltham, MA

Active since February 06, 2007Opted out of Medicare · through Jan 4, 2028
118 CENTRAL ST., WALTHAM, MA 02453(781) 891-0556(781) 647-1432 Get Directions Write a Review

NPPES record last updated: September 30, 2016. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 6, 2026, Apr 22, 2026, Apr 7, 2026 and 1 more (4 updates tracked since 2016).

About Ms. Karen Lee Welch Lmhc NPPES

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

MS. KAREN LEE WELCH LMHC (NPI 1902945678) is an individual mental health provider in Waltham, Massachusetts, licensed in Massachusetts (5357) and active in the NPI registry since February 2007. She has opted out of Medicare through January 4, 2028.

NPPES Registry Identity

NPI1902945678
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameMS. KAREN LEE WELCHCredential: LMHC
Location Address118 CENTRAL ST.Waltham, MA 02453
Mailing Address118 Central St.Waltham, MA 02453 · (781) 891-0556 · Fax (781) 647-1432
Phone(781) 891-0556
Fax(781) 647-1432
Sole ProprietorNo
Enumeration DateFebruary 6, 2007
Last NPPES UpdateSeptember 30, 20164 updates tracked since enumeration
✔ NPI 1902945678 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 · 5357
118 CENTRAL ST., Waltham, MA 02453
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Ms. Karen Lee Welch 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 January 4, 2026 through January 4, 2028.

Opt-Out Effective DateJanuary 4, 2026
Opt-Out In Effect ThroughJanuary 4, 2028Opt-out affidavits renew automatically every two years unless cancelled

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 Karen Welch's NPI number?

The NPI number for Karen Welch is 1902945678. It was assigned to this individual provider in the NPPES registry on February 6, 2007.

Where is Karen Welch located?

Karen Welch practices at 118 Central St., Waltham, MA 02453. The listed phone number is (781) 891-0556.

What is Karen Welch's specialty?

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

Is Karen Welch enrolled in Medicare?

No. Karen Welch has opted out of Medicare through January 4, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

What insurance does Karen Welch accept?

Health plans from Anthem Blue Cross and Blue Shield list Karen Welch as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Karen Welch was last updated on September 30, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.