Isaac Ngo, MD
NPI 1689417917 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Isaac Ngo, MD is a Internal Medicine Physician provider in Chicago, IL (NPI 1689417917).
Provider details
- NPI number
- 1689417917
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 125084513 (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
2 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
- 2024-06-14
- Last updated
- 2024-06-14
- Certified
- 2024-06-14
Frequently asked questions
- What is Isaac Ngo's NPI number?
- Isaac Ngo's National Provider Identifier (NPI) is 1689417917, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isaac Ngo's specialty?
- Isaac Ngo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Isaac Ngo located?
- Isaac Ngo's practice location on file with NPPES is 1620 W Harrison St, Chicago, IL 60612-3801.
- What is Isaac Ngo's phone number?
- The practice phone number listed in the NPPES registry for Isaac Ngo is (312) 942-5000.
- Does Isaac Ngo accept Medicare?
- Isaac Ngo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Isaac Ngo's NPI active?
- Yes — Isaac Ngo's NPI (1689417917) is active in the NPPES registry as of the last update on 2024-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.