MICHELLE MATTIA RDN
NPI 1114670502
Dietitian, Registered in Springfield, MA
About Michelle Mattia Rdn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHELLE MATTIA RDN (NPI 1114670502) is an individual dietitian, registered in Springfield, Massachusetts and active in the NPI registry since January 2022. She is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Michelle Mattia Rdn 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.
Medicare Billing Reassignment
Medicare enrollment records show Michelle Mattia reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Springfield, MA 01104
- Reassigned Medicare billing, Massachusetts enrollment
- 298 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
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 01104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SPRINGFIELD, MA 01104
SPRINGFIELD, MA 01104
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 Michelle Mattia's NPI number?
The NPI number for Michelle Mattia is 1114670502. It was assigned to this individual provider in the NPPES registry on January 27, 2022.
Where is Michelle Mattia located?
Michelle Mattia practices at 175 Carew St, Springfield, MA 01104. The listed phone number is (413) 734-8254.
What is Michelle Mattia's specialty?
The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.
Is Michelle Mattia enrolled in Medicare?
Yes. Michelle Mattia 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 Michelle Mattia's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michelle Mattia reassigns Medicare benefits to Riverbend Medical Group, Inc. (Springfield, 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 Michelle Mattia's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michelle Mattia accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Michelle Mattia 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 Michelle Mattia was last updated on January 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Michelle Mattia, RDN · NPI 1114670502
Dietitian, Registered provider in Springfield, Massachusetts. Individual provider, active in the CMS NPPES registry since January 27, 2022.
## Identity
- **NPI:** 1114670502 (Entity type: Individual)
- **Enumerated:** January 27, 2022
- **Primary specialty:** Dietitian, Registered · taxonomy 133V00000X
- **Sole proprietor:** No
## Practice location
- **Address:** 175 CAREW ST, Springfield, MA 01104-2389
- **Phone:** (413) 734-8254
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Riverbend Medical Group, Inc. (NPI 1841651197, Springfield, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** January 27, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1114670502) · Data from the CMS NPPES public registry.