William Chong, MD
NPI 1811199177 · Internal Medicine Physician · Philadelphia, PA
William Chong, MD is a Internal Medicine Physician provider in Philadelphia, PA (NPI 1811199177).
Provider details
- NPI number
- 1811199177
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD434308 (PA)
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
- 2007-05-31
- Last updated
- 2008-10-27
Frequently asked questions
- What is William Chong's NPI number?
- William Chong's National Provider Identifier (NPI) is 1811199177, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Chong's specialty?
- William Chong is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Chong located?
- William Chong's practice location on file with NPPES is 833 Chestnut St, Philadelphia, PA 19107-4414.
- What is William Chong's phone number?
- The practice phone number listed in the NPPES registry for William Chong is (215) 955-6180.
- Is William Chong's NPI active?
- Yes — William Chong's NPI (1811199177) is active in the NPPES registry as of the last update on 2008-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.