Bach-Ngan Chau
NPI 1326668021 · Internal Medicine Physician · Tucson, AZ
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bach-Ngan Chau is a Internal Medicine Physician provider in Tucson, AZ (NPI 1326668021).
Provider details
- NPI number
- 1326668021
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- R77953 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
- 2020-04-22
- Last updated
- 2023-07-05
- Certified
- 2023-07-05
Frequently asked questions
- What is Bach-Ngan Chau's NPI number?
- Bach-Ngan Chau's National Provider Identifier (NPI) is 1326668021, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bach-Ngan Chau's specialty?
- Bach-Ngan Chau is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Bach-Ngan Chau located?
- Bach-Ngan Chau's practice location on file with NPPES is 3601 S 6th Ave, Tucson, AZ 85723-6204.
- What is Bach-Ngan Chau's phone number?
- The practice phone number listed in the NPPES registry for Bach-Ngan Chau is (520) 792-1450.
- Does Bach-Ngan Chau accept Medicare?
- Bach-Ngan Chau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bach-Ngan Chau's NPI active?
- Yes — Bach-Ngan Chau's NPI (1326668021) is active in the NPPES registry as of the last update on 2023-07-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.