Stacy Thornley, FNP
NPI 1477379121 · Family Nurse Practitioner · Flagstaff, AZ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stacy Thornley, FNP is a Family Nurse Practitioner provider in Flagstaff, AZ (NPI 1477379121).
Provider details
- NPI number
- 1477379121
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 317682 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 18444 N 25th Ave Ste 210Phoenix, AZ 85023-1264Phone: (866) 974-2673Fax: (480) 499-8459
- 3200 N Windsong DrPrescott Valley, AZ 86314-2255Phone: (866) 974-2673Fax: (480) 499-8459
Registry dates
- Enumerated
- 2024-11-26
- Last updated
- 2026-03-17
- Certified
- 2026-03-17
Frequently asked questions
- What is Stacy Thornley's NPI number?
- Stacy Thornley's National Provider Identifier (NPI) is 1477379121, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stacy Thornley's specialty?
- Stacy Thornley is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Stacy Thornley located?
- Stacy Thornley's practice location on file with NPPES is 1840 N Jasper Dr Ste 2, Flagstaff, AZ 86001-1634.
- What is Stacy Thornley's phone number?
- The practice phone number listed in the NPPES registry for Stacy Thornley is (866) 974-2673.
- Does Stacy Thornley accept Medicare?
- Stacy Thornley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stacy Thornley's NPI active?
- Yes — Stacy Thornley's NPI (1477379121) is active in the NPPES registry as of the last update on 2026-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.