William Wong, MD
NPI 1679762900 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Wong, MD is a Internal Medicine Physician provider in Chicago, IL (NPI 1679762900).
Provider details
- NPI number
- 1679762900
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036099813 (IL)
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
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 2861 N Clark St2nd FloorChicago, IL 60657-5207Phone: (312) 742-7372
Registry dates
- Enumerated
- 2007-10-23
- Last updated
- 2020-10-14
- Certified
- 2020-10-14
Frequently asked questions
- What is William Wong's NPI number?
- William Wong's National Provider Identifier (NPI) is 1679762900, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Wong's specialty?
- William Wong is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Wong located?
- William Wong's practice location on file with NPPES is 676 N Saint Clair St Ste 900, Chicago, IL 60611-2977.
- What is William Wong's phone number?
- The practice phone number listed in the NPPES registry for William Wong is (312) 926-8282.
- Does William Wong accept Medicare?
- William Wong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Wong's NPI active?
- Yes — William Wong's NPI (1679762900) is active in the NPPES registry as of the last update on 2020-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.