MS. KATHERINE ELIZABETH SIMPSON MA, MED, LMHC
NPI 1659915338
Counselor - Mental Health in Quincy, MA
About Ms. Katherine Elizabeth Simpson Ma, Med, Lmhc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. KATHERINE ELIZABETH SIMPSON MA, MED, LMHC (NPI 1659915338) is an individual mental health provider in Quincy, Massachusetts, licensed in Massachusetts (13276) and active in the NPI registry since November 2019. She is enrolled in Medicare PECOS, maintains a secondary practice location in Cambridge, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ms. Katherine Elizabeth Simpson Ma, Med, Lmhc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Katherine Simpson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Cambridge, MA 02139
- Reassigned Medicare billing, Massachusetts enrollment
- 83 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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.
QUINCY, MA 02169
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 Katherine Simpson's NPI number?
The NPI number for Katherine Simpson is 1659915338. It was assigned to this individual provider in the NPPES registry on November 5, 2019.
Where is Katherine Simpson located?
Katherine Simpson practices at 1120 Hancock St, Quincy, MA 02169. The listed phone number is (617) 471-8400.
What is Katherine Simpson's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Katherine Simpson enrolled in Medicare?
Yes. Katherine Simpson is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Katherine Simpson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Simpson reassigns Medicare benefits to Cartwheel Health Services PC (Cambridge, MA). 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 Katherine Simpson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katherine Simpson accept?
Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and Taro Health list Katherine Simpson 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 Katherine Simpson was last updated on April 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.
# Ms. Katherine Elizabeth Simpson, MA, MED, LMHC · NPI 1659915338
Mental Health provider in Quincy, Massachusetts. Individual provider, active in the CMS NPPES registry since November 5, 2019.
## Identity
- **NPI:** 1659915338 (Entity type: Individual)
- **Enumerated:** November 5, 2019
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** 13276 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1120 HANCOCK ST, Quincy, MA 02169-4313
- **Phone:** (617) 471-8400
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Cartwheel Health Services PC (NPI 1912633975, Cambridge, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** April 17, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1659915338) · Data from the CMS NPPES public registry.