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KAREN S. LARSEN MA
NPI 1609225218
Counselor - Mental Health in Bridgewater, NJ

Active since June 06, 2016PECOS EnrolledAccepts Medicare Assignment
500 BRIDGE STREET, 500 BRIDGE STREET, BRIDGEWATER, NJ 08807(908) 725-2800(908) 704-1790 Get Directions Write a Review

NPPES record last updated: June 6, 2016. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Karen S. Larsen Ma NPPES

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

KAREN S. LARSEN MA (NPI 1609225218) is an individual mental health provider in Bridgewater, New Jersey and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1609225218
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameKAREN S. LARSENCredential: MA
Location Address500 BRIDGE STREET, 500 BRIDGE STREETBridgewater, NJ 08807
Mailing Address500 N Bridge St, 500 North Bridge StreetBridgewater, NJ 08807-2135 · (908) 725-2800 · Fax (908) 704-1790
Phone(908) 725-2800
Fax(908) 704-1790
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateJune 6, 2016
✔ NPI 1609225218 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
500 BRIDGE STREET, Bridgewater, NJ 08807
Open in Google Maps ↗

Other Identifiers 1

Other0023701NJ · Agency Medicaid

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Karen S. Larsen Ma is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID840648069
PECOS Enrollment IDI20240305000365
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Karen Larsen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Concern-Professional Services For Children, Youth & Families
34 mi
Mental Health (Including Community Mental Health Center)
2000 S 25TH ST
Easton, PA 18042
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 52 clinicians in this Medicare group
NPI 1083211205 (610) 691-8401

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Larsen's NPI number?

The NPI number for Karen Larsen is 1609225218. It was assigned to this individual provider in the NPPES registry on June 6, 2016.

Where is Karen Larsen located?

Karen Larsen practices at 500 Bridge Street 500 Bridge Street, Bridgewater, NJ 08807. The listed phone number is (908) 725-2800.

What is Karen Larsen's specialty?

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

Is Karen Larsen enrolled in Medicare?

Yes. Karen Larsen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Karen Larsen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Larsen reassigns Medicare benefits to Concern-Professional Services For Children, Youth & Families (Easton, PA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karen Larsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Karen Larsen was last updated on June 6, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.