Joseph Hammer, FNP
NPI 1659945210 · Family Nurse Practitioner · Flagstaff, AZ
Joseph Hammer, FNP is a Family Nurse Practitioner provider in Flagstaff, AZ (NPI 1659945210).
Provider details
- NPI number
- 1659945210
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Male
- Sole proprietor
- No
- License
- 257636 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2021-05-18
- Last updated
- 2021-05-18
- Certified
- 2021-05-18
Frequently asked questions
- What is Joseph Hammer's NPI number?
- Joseph Hammer's National Provider Identifier (NPI) is 1659945210, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Hammer's specialty?
- Joseph Hammer is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joseph Hammer located?
- Joseph Hammer's practice location on file with NPPES is 2935 S Pepita Dr, Flagstaff, AZ 86001-9163.
- What is Joseph Hammer's phone number?
- The practice phone number listed in the NPPES registry for Joseph Hammer is (928) 221-4950.
- Is Joseph Hammer's NPI active?
- Yes — Joseph Hammer's NPI (1659945210) is active in the NPPES registry as of the last update on 2021-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.