Gianna Lum
NPI 1215396411 · Dentist · Pittsburg, CA
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gianna Lum is a Dentist provider in Pittsburg, CA (NPI 1215396411).
Provider details
- NPI number
- 1215396411
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 100532 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2016-02-16
- Last updated
- 2017-05-02
Frequently asked questions
- What is Gianna Lum's NPI number?
- Gianna Lum's National Provider Identifier (NPI) is 1215396411, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gianna Lum's specialty?
- Gianna Lum is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Gianna Lum located?
- Gianna Lum's practice location on file with NPPES is 337 E Leland Rd, Pittsburg, CA 94565-4911.
- What is Gianna Lum's phone number?
- The practice phone number listed in the NPPES registry for Gianna Lum is (925) 431-1250.
- Does Gianna Lum accept Medicare?
- Gianna Lum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gianna Lum's NPI active?
- Yes — Gianna Lum's NPI (1215396411) is active in the NPPES registry as of the last update on 2017-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.