John A. Butler, M.d.s.c.
NPI 1447363866 · Pulmonary Disease Physician · Rockford, IL
John A. Butler, M.d.s.c. is a Pulmonary Disease Physician organization in Rockford, IL (NPI 1447363866).
Provider details
- NPI number
- 1447363866
- Entity type
- Organization
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- John Butler, President(815) 397-7212
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
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
- 2006-08-17
- Last updated
- 2008-03-11
Frequently asked questions
- What is John A. Butler, M.d.s.c.'s NPI number?
- John A. Butler, M.d.s.c.'s National Provider Identifier (NPI) is 1447363866, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John A. Butler, M.d.s.c.?
- John A. Butler, M.d.s.c. is classified in the NPPES registry as Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is John A. Butler, M.d.s.c. located?
- John A. Butler, M.d.s.c.'s practice location on file with NPPES is 5668 E State St, Rockford, IL 61108-2490.
- What is John A. Butler, M.d.s.c.'s phone number?
- The practice phone number listed in the NPPES registry for John A. Butler, M.d.s.c. is (815) 397-7212.
- Who is the authorized official for John A. Butler, M.d.s.c.?
- The authorized official listed on John A. Butler, M.d.s.c.'s NPPES record is John Butler, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John A. Butler, M.d.s.c.'s NPI active?
- Yes — John A. Butler, M.d.s.c.'s NPI (1447363866) is active in the NPPES registry as of the last update on 2008-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.