Chelmsford Mri, P.C.
NPI 1821435553 · Diagnostic Radiology Physician · Springfield, MA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chelmsford Mri, P.C. is a Diagnostic Radiology Physician organization in Springfield, MA (NPI 1821435553).
Provider details
- NPI number
- 1821435553
- Entity type
- Organization
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Ramona Ahern, (ao)(952) 738-4441
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Rayus Radiology
Registry dates
- Enumerated
- 2013-06-04
- Last updated
- 2021-10-08
- Certified
- 2021-10-08
Frequently asked questions
- What is Chelmsford Mri, P.C.'s NPI number?
- Chelmsford Mri, P.C.'s National Provider Identifier (NPI) is 1821435553, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Chelmsford Mri, P.C.?
- Chelmsford Mri, P.C. is classified in the NPPES registry as Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Chelmsford Mri, P.C. located?
- Chelmsford Mri, P.C.'s practice location on file with NPPES is 3640 Main St, Springfield, MA 01107-1145.
- What is Chelmsford Mri, P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Chelmsford Mri, P.C. is (413) 781-9000.
- Does Chelmsford Mri, P.C. accept Medicare?
- Chelmsford Mri, P.C. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Chelmsford Mri, P.C.?
- The authorized official listed on Chelmsford Mri, P.C.'s NPPES record is Ramona Ahern, (ao). The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Chelmsford Mri, P.C.'s NPI active?
- Yes — Chelmsford Mri, P.C.'s NPI (1821435553) is active in the NPPES registry as of the last update on 2021-10-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.