IndividualActive
Christa Krellwitz, NP-C
NPI 1821442393 · Primary Care Clinic/Center · Upland, CA
Christa Krellwitz, NP-C is a Primary Care Clinic/Center provider in Upland, CA (NPI 1821442393).
Provider details
- NPI number
- 1821442393
- Entity type
- Individual
- Primary specialty
- Primary Care Clinic/CenterAmbulatory Health Care Facilities
- Credential
- NP-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- NP95004007 (CA)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
Established profile(72/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
1113 Alta Ave Ste 220
Upland, CA 91786-2803
Phone: (909) 985-1908
Street-level locationGet directions
Mailing address
1113 Alta Ave Ste 220
Upland, CA 91786-2803
Registry dates
- Enumerated
- 2016-04-20
- Last updated
- 2023-03-07
Frequently asked questions
- What is Christa Krellwitz's NPI number?
- Christa Krellwitz's National Provider Identifier (NPI) is 1821442393, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christa Krellwitz's specialty?
- Christa Krellwitz is listed in the NPPES registry with a primary specialty of Primary Care Clinic/Center (Ambulatory Health Care Facilities).
- Where is Christa Krellwitz located?
- Christa Krellwitz's practice location on file with NPPES is 1113 Alta Ave Ste 220, Upland, CA 91786-2803.
- What is Christa Krellwitz's phone number?
- The practice phone number listed in the NPPES registry for Christa Krellwitz is (909) 985-1908.
- Is Christa Krellwitz's NPI active?
- Yes — Christa Krellwitz's NPI (1821442393) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.