Charmaine Ong, MD
NPI 1871351114 · Anesthesiology Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charmaine Ong, MD is a Anesthesiology Physician provider in Chicago, IL (NPI 1871351114).
Provider details
- NPI number
- 1871351114
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 125.086157 (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
- 2024-03-11
- Last updated
- 2025-06-23
- Certified
- 2025-06-23
Frequently asked questions
- What is Charmaine Ong's NPI number?
- Charmaine Ong's National Provider Identifier (NPI) is 1871351114, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charmaine Ong's specialty?
- Charmaine Ong is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Charmaine Ong located?
- Charmaine Ong's practice location on file with NPPES is 1740 W Taylor St, Chicago, IL 60612-7232.
- What is Charmaine Ong's phone number?
- The practice phone number listed in the NPPES registry for Charmaine Ong is (866) 600-2273.
- Does Charmaine Ong accept Medicare?
- Charmaine Ong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charmaine Ong's NPI active?
- Yes — Charmaine Ong's NPI (1871351114) is active in the NPPES registry as of the last update on 2025-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.