Mrs. Callie Grenier FNP-C
Also known as
- Formerly known asSmith, Callie Jean
Source: NPPES public registry.
About this NPIWhat this record shows.
NPI 1275099723 is registered to Mrs. Callie Grenier FNP-C, a Family Nurse Practitioner practising at 290 Littleton Rd Unit 3 in Chelmsford, Massachusetts. Family Nurse Practitioner is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Mrs. Callie Grenier FNP-C has been enumerated in the National Provider Identifier (NPI) registry since 2019.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Other
- 061024-23NH· Issued by NH APRN FNP LICENSE #
- 061024-21NH· Issued by NH RN LICENSE #
Source: NPPES public registry.
Medicare enrollment
This provider holds 2 Medicare enrollments on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20190913002343Nurse PractitionerMA
- I20211207001705Nurse PractitionerNH
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Mrs. Callie Grenier FNP-C accepts. To confirm in-network status with your specific health plan, contact Mrs. Callie Grenier FNP-C directly at (978) 685-2460.
Frequently asked
Yes. NPI 1275099723 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Family Nurse Practitioner is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (978) 685-2460.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Mrs. Callie Grenier FNP-C is a Type-1 individual NPI.