George Chiampas, D.O.
NPI 1538169636 · Emergency Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
George Chiampas, D.O. is a Emergency Medicine Physician provider in Chicago, IL (NPI 1538169636).
Provider details
- NPI number
- 1538169636
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 036105400 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
100 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 75 | $187 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 25 | $130 |
Typical Medicare-allowed amounts for these services range $130–$187 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 5645 W Addison StOur Lady of the Resurection HospitalChicago, IL 60634-4403Phone: (773) 282-7000Fax: (773) 794-7664
Registry dates
- Enumerated
- 2005-07-29
- Last updated
- 2018-03-17
Frequently asked questions
- What is George Chiampas's NPI number?
- George Chiampas's National Provider Identifier (NPI) is 1538169636, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is George Chiampas's specialty?
- George Chiampas is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is George Chiampas located?
- George Chiampas's practice location on file with NPPES is 251 E Huron St, Chicago, IL 60611-2908.
- What is George Chiampas's phone number?
- The practice phone number listed in the NPPES registry for George Chiampas is (312) 926-2000.
- Does George Chiampas accept Medicare?
- George Chiampas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is George Chiampas's NPI active?
- Yes — George Chiampas's NPI (1538169636) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.