Ms. Mary Massieu DNP, FNP -C
Also known as
- Formerly known asWelsh, Mary Elizabeth
Source: NPPES public registry.
About this NPIWhat this record shows.
NPI 1144644287 is registered to Ms. Mary Massieu DNP, FNP -C, a Family Nurse Practitioner practising at 12075 E State Route 69 in Dewey, Arizona. Family Nurse Practitioner is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Ms. Mary Massieu DNP, FNP -C has been enumerated in the National Provider Identifier (NPI) registry since 2014.
Your brand here.
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
- I20191015002348Nurse PractitionerFL
- I20210311003043Nurse PractitionerAZ
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 Ms. Mary Massieu DNP, FNP -C accepts. To confirm in-network status with your specific health plan, contact Ms. Mary Massieu DNP, FNP -C directly at (928) 777-9600.
Frequently asked
Yes. NPI 1144644287 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 (928) 777-9600.
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. Ms. Mary Massieu DNP, FNP -C is a Type-1 individual NPI.