Charles B Johnston MD PC
NPI 1407000177 · Internal Medicine Physician · Melrose Park, IL
Charles B Johnston MD PC is a Internal Medicine Physician organization in Melrose Park, IL (NPI 1407000177).
Provider details
- NPI number
- 1407000177
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Charles Johnston, President(708) 681-7905
- License
- 036078749 (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 tenure38% of score
17 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
Other names (DBA / former)
- Doing business as
- Private Practice of River Forest
Registry dates
- Enumerated
- 2008-11-07
- Last updated
- 2008-11-07
Frequently asked questions
- What is Charles B Johnston MD PC's NPI number?
- Charles B Johnston MD PC's National Provider Identifier (NPI) is 1407000177, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Charles B Johnston MD PC?
- Charles B Johnston MD PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles B Johnston MD PC located?
- Charles B Johnston MD PC's practice location on file with NPPES is 675 W North Ave, Melrose Park, IL 60160-1634.
- What is Charles B Johnston MD PC's phone number?
- The practice phone number listed in the NPPES registry for Charles B Johnston MD PC is (708) 681-7905.
- Who is the authorized official for Charles B Johnston MD PC?
- The authorized official listed on Charles B Johnston MD PC's NPPES record is Charles Johnston, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Charles B Johnston MD PC's NPI active?
- Yes — Charles B Johnston MD PC's NPI (1407000177) is active in the NPPES registry as of the last update on 2008-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.