Preston Harris, PHD, RDN
NPI 1164105102 · Registered Dietitian · Sahuarita, AZ
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Preston Harris, PHD, RDN is a Registered Dietitian provider in Sahuarita, AZ (NPI 1164105102).
Provider details
- NPI number
- 1164105102
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- PHD, RDN
- Sex
- Male
- Sole proprietor
- No
- License
- 86358244 (AZ)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
- 2023-08-08
- Last updated
- 2023-08-08
- Certified
- 2023-08-08
Frequently asked questions
- What is Preston Harris's NPI number?
- Preston Harris's National Provider Identifier (NPI) is 1164105102, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Preston Harris's specialty?
- Preston Harris is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Preston Harris located?
- Preston Harris's practice location on file with NPPES is 719 W Calle Coroza, Sahuarita, AZ 85629-7825.
- What is Preston Harris's phone number?
- The practice phone number listed in the NPPES registry for Preston Harris is (520) 784-8134.
- Does Preston Harris accept Medicare?
- Preston Harris is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Preston Harris's NPI active?
- Yes — Preston Harris's NPI (1164105102) is active in the NPPES registry as of the last update on 2023-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.