IndividualActive
Katherine Zaharopoulos, DDS
NPI 1255412326 · General Practice Dentistry · Upland, CA
Katherine Zaharopoulos, DDS is a General Practice Dentistry provider in Upland, CA (NPI 1255412326).
Provider details
- NPI number
- 1255412326
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DDS
- Sex
- Female
- Sole proprietor
- Yes
- License
- 33435 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(90/100 index)
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
440 N Mountain Ave
Suite #101
Upland, CA 91786-5183
Phone: (909) 982-8891
Fax: (909) 931-3284
Street-level locationGet directions
Mailing address
440 N Mountain Ave
Upland, CA 91786-5183
Registry dates
- Enumerated
- 2006-10-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is Katherine Zaharopoulos's NPI number?
- Katherine Zaharopoulos's National Provider Identifier (NPI) is 1255412326, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Zaharopoulos's specialty?
- Katherine Zaharopoulos is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Katherine Zaharopoulos located?
- Katherine Zaharopoulos's practice location on file with NPPES is 440 N Mountain Ave, Upland, CA 91786-5183.
- What is Katherine Zaharopoulos's phone number?
- The practice phone number listed in the NPPES registry for Katherine Zaharopoulos is (909) 982-8891.
- Is Katherine Zaharopoulos's NPI active?
- Yes — Katherine Zaharopoulos's NPI (1255412326) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.