John Byrnes, M.D.
NPI 1770500233 · Emergency Medicine Physician · Springfield, IL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Byrnes, M.D. is a Emergency Medicine Physician provider in Springfield, IL (NPI 1770500233).
Provider details
- NPI number
- 1770500233
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036-109172 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2006-07-17
- Last updated
- 2015-01-29
Frequently asked questions
- What is John Byrnes's NPI number?
- John Byrnes's National Provider Identifier (NPI) is 1770500233, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Byrnes's specialty?
- John Byrnes is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Byrnes located?
- John Byrnes's practice location on file with NPPES is 800 E Carpenter St, Springfield, IL 62769-0002.
- What is John Byrnes's phone number?
- The practice phone number listed in the NPPES registry for John Byrnes is (217) 544-6464.
- Does John Byrnes accept Medicare?
- John Byrnes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Byrnes's NPI active?
- Yes — John Byrnes's NPI (1770500233) is active in the NPPES registry as of the last update on 2015-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.