Tiffany Mathias Fielder MD
About this NPIWhat this record shows.
NPI 1891144580 is registered to Tiffany Mathias Fielder MD, a Pain Medicine Physician practising at 4027 Hoyt Ave in Everett, Washington. Pain Medicine Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Tiffany Mathias Fielder MD has been enumerated in the National Provider Identifier (NPI) registry since 2016.
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
- A161559CA· Issued by MEDICAL LIC
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
- I20200709003148Pain ManagementCA
- I20260312000673Pain ManagementWA
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 Tiffany Mathias Fielder MD accepts. To confirm in-network status with your specific health plan, contact Tiffany Mathias Fielder MD directly at (206) 860-5414.
Frequently asked
Yes. NPI 1891144580 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Pain Medicine Physician 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 (206) 860-5414.
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. Tiffany Mathias Fielder MD is a Type-1 individual NPI.