Philip Johnston, MD
NPI 1992509152 · Internal Medicine Physician · Maywood, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Philip Johnston, MD is a Internal Medicine Physician provider in Maywood, IL (NPI 1992509152).
Provider details
- NPI number
- 1992509152
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
83% 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
- 2025-04-04
- Last updated
- 2025-05-13
- Certified
- 2025-05-13
Frequently asked questions
- What is Philip Johnston's NPI number?
- Philip Johnston's National Provider Identifier (NPI) is 1992509152, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Philip Johnston's specialty?
- Philip Johnston is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Philip Johnston located?
- Philip Johnston's practice location on file with NPPES is 2160 S 1st Ave, Maywood, IL 60153-3328.
- What is Philip Johnston's phone number?
- The practice phone number listed in the NPPES registry for Philip Johnston is (888) 584-7888.
- Does Philip Johnston accept Medicare?
- Philip Johnston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Philip Johnston's NPI active?
- Yes — Philip Johnston's NPI (1992509152) is active in the NPPES registry as of the last update on 2025-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.