MARCI S YOSS MD
NPI 1942215363
Family Medicine in Northampton, MA
About Marci S Yoss Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARCI S YOSS MD (NPI 1942215363) is an individual family medicine provider in Northampton, Massachusetts, licensed in Massachusetts (54446) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Marci S Yoss Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Marci Yoss reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Leeds, MA 01053
- Reassigned Medicare billing, Massachusetts enrollment
- 21 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01060 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NORTHAMPTON, MA 01060
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 Marci Yoss's NPI number?
The NPI number for Marci Yoss is 1942215363. It was assigned to this individual provider in the NPPES registry on July 31, 2006.
Where is Marci Yoss located?
Marci Yoss practices at 325B King Street, Northampton, MA 01060. The listed phone number is (413) 387-4100.
What is Marci Yoss's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Marci Yoss enrolled in Medicare?
Yes. Marci Yoss is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Marci Yoss's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marci Yoss reassigns Medicare benefits to Paradigm Healthcare, PC (Leeds, 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 Marci Yoss'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 Marci Yoss was last updated on November 14, 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.