MRS. DIANA VANDERMAST FNP
NPI 1669423349
Nurse Practitioner - Family in Sangerville, ME
About Mrs. Diana Vandermast Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. DIANA VANDERMAST FNP (NPI 1669423349) is an individual family provider in Sangerville, Maine, licensed in Maine (R048203) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, is affiliated with Northern Light Eastern Maine Medical Center, and is a graduate of Other (2004).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 6
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
Mrs. Diana Vandermast Fnp 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 Reassignments
2Medicare enrollment records show Diana Vandermast reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dover Foxcroft, ME 04426
- Reassigned Medicare billing, Maine enrollment
- 146 clinicians in this Medicare group
Greenville, ME 04441
- Reassigned Medicare billing, Maine enrollment
- 105 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northern Light Eastern Maine Medical Center
Acute Care Hospitals · Bangor, MENorthern Light Mayo Hospital
Critical Access Hospitals · Dover Foxcroft, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04479 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Diana Vandermast's NPI number?
The NPI number for Diana Vandermast is 1669423349. It was assigned to this individual provider in the NPPES registry on May 15, 2006. The provider is also known as Diana M Hayden Fnp.
Where is Diana Vandermast located?
Diana Vandermast practices at 22 Haley Ct, Sangerville, ME 04479. The listed phone number is (207) 876-4811.
What is Diana Vandermast's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Diana Vandermast enrolled in Medicare?
Yes. Diana Vandermast 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 organizations bill Medicare for Diana Vandermast's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diana Vandermast reassigns Medicare benefits to 2 organizations: Mrh Corp. (Dover Foxcroft, ME) and Charles A Dean Memorial Hospital (Greenville, ME). Each 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 Diana Vandermast's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Diana Vandermast accept?
Health plans from Anthem Blue Cross and Blue Shield list Diana Vandermast 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.
Is Diana Vandermast affiliated with any hospitals?
According to CMS data, Diana Vandermast is affiliated with Northern Light Eastern Maine Medical Center and Northern Light Mayo Hospital.
When was this NPI record last updated?
The NPPES record for Diana Vandermast was last updated on August 31, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Mrs. Diana Vandermast, FNP · NPI 1669423349
Family physician in Sangerville, Maine. Individual provider, active in the CMS NPPES registry since May 15, 2006.
## Identity
- **NPI:** 1669423349 (Entity type: Individual)
- **Enumerated:** May 15, 2006
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** R048203 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 22 HALEY CT, Sangerville, ME 04479-3000
- **Phone:** (207) 876-4811 · **Fax:** (207) 695-2329
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Mrh Corp. (NPI 1558319103, Dover Foxcroft, ME); Charles A Dean Memorial Hospital (NPI 1659388213, Greenville, ME) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** August 31, 2015
- **Other identifiers:** Medicare OSCAR/certification 201826 (ME); Medicare OSCAR/certification 201862 (ME); Medicaid 432355199 (ME); and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1669423349) · Data from the CMS NPPES public registry.