John Hornback, D.O.
NPI 1891811618 · Family Medicine Physician · Tucson, AZ
John Hornback, D.O. is a Family Medicine Physician provider in Tucson, AZ (NPI 1891811618).
Provider details
- NPI number
- 1891811618
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 94-06467 (KS)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2007-03-22
- Last updated
- 2008-11-06
Frequently asked questions
- What is John Hornback's NPI number?
- John Hornback's National Provider Identifier (NPI) is 1891811618, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hornback's specialty?
- John Hornback is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Hornback located?
- John Hornback's practice location on file with NPPES is 8333 North Silverbell, Tucson, AZ 85743-7371.
- What is John Hornback's phone number?
- The practice phone number listed in the NPPES registry for John Hornback is (520) 232-5280.
- Is John Hornback's NPI active?
- Yes — John Hornback's NPI (1891811618) is active in the NPPES registry as of the last update on 2008-11-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.