Stefan King, MD
NPI 1780394528 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stefan King, MD is a Internal Medicine Physician provider in Chicago, IL (NPI 1780394528).
Provider details
- NPI number
- 1780394528
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
83% 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)
- 180 Harvester Dr Ste 110Burr Ridge, IL 60527-6686Phone: (773) 702-1150
Registry dates
- Enumerated
- 2022-12-02
- Last updated
- 2025-07-28
- Certified
- 2025-07-28
Frequently asked questions
- What is Stefan King's NPI number?
- Stefan King's National Provider Identifier (NPI) is 1780394528, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stefan King's specialty?
- Stefan King is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stefan King located?
- Stefan King's practice location on file with NPPES is 5841 S Maryland Ave, Chicago, IL 60637-1443.
- What is Stefan King's phone number?
- The practice phone number listed in the NPPES registry for Stefan King is (773) 702-6840.
- Does Stefan King accept Medicare?
- Stefan King is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stefan King's NPI active?
- Yes — Stefan King's NPI (1780394528) is active in the NPPES registry as of the last update on 2025-07-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.