Mary Naughton
NPI 1477973691 · Emergency Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Naughton is a Emergency Medicine Physician provider in Chicago, IL (NPI 1477973691).
Provider details
- NPI number
- 1477973691
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 036-143784 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 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
345 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 159 | $8 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 129 | $184 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 40 | $127 |
| Critical Care, First 30-74 Minutes99291 | 17 | $222 |
Typical Medicare-allowed amounts for these services range $8–$222 (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)
- 808 S Wood St469 Cme, M/C 724Chicago, IL 60612-7300Phone: (312) 413-7492
Registry dates
- Enumerated
- 2014-04-28
- Last updated
- 2019-09-27
Frequently asked questions
- What is Mary Naughton's NPI number?
- Mary Naughton's National Provider Identifier (NPI) is 1477973691, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Naughton's specialty?
- Mary Naughton is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Naughton located?
- Mary Naughton's practice location on file with NPPES is 1653 W Congress Pkwy, Chicago, IL 60612.
- What is Mary Naughton's phone number?
- The practice phone number listed in the NPPES registry for Mary Naughton is (312) 947-0229.
- Does Mary Naughton accept Medicare?
- Mary Naughton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Naughton's NPI active?
- Yes — Mary Naughton's NPI (1477973691) is active in the NPPES registry as of the last update on 2019-09-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.