William Bao, MD Inc
NPI 1477639789 · Internal Medicine Physician · City of Industry, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Bao, MD Inc is a Internal Medicine Physician organization in City of Industry, CA (NPI 1477639789).
Provider details
- NPI number
- 1477639789
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Bao, Provider/President(626) 581-4990
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
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
Mailing address
Registry dates
- Enumerated
- 2006-10-29
- Last updated
- 2020-08-22
Frequently asked questions
- What is William Bao, MD Inc's NPI number?
- William Bao, MD Inc's National Provider Identifier (NPI) is 1477639789, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William Bao, MD Inc?
- William Bao, MD Inc is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Bao, MD Inc located?
- William Bao, MD Inc's practice location on file with NPPES is 17595 Almahurst St Ste 202, City of Industry, CA 91748-1799.
- What is William Bao, MD Inc's phone number?
- The practice phone number listed in the NPPES registry for William Bao, MD Inc is (626) 581-4990.
- Does William Bao, MD Inc accept Medicare?
- William Bao, MD Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for William Bao, MD Inc?
- The authorized official listed on William Bao, MD Inc's NPPES record is William Bao, Provider/President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William Bao, MD Inc's NPI active?
- Yes — William Bao, MD Inc's NPI (1477639789) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.