John Walton, MD
NPI 1245895507 · Adult Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Sports Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Walton, MD is a Adult Medicine Physician provider in Chicago, IL (NPI 1245895507).
Provider details
- NPI number
- 1245895507
- Entity type
- Individual
- Primary specialty
- Adult Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 125.078956 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 36 | 15 |
| Empagliflozinbrand: Jardiance | 21 | — |
| Memantine Hcl | 15 | — |
| Levothyroxine Sodium | 14 | — |
| Lisinopril | 13 | — |
| Losartan Potassium | 12 | — |
| Metoprolol Succinate |
Practice location
Mailing address
Additional practice locations (1)
- 2650 Ridge Ave Ste 1304Evanston, IL 60201-1700Phone: (847) 866-7846
Registry dates
- Enumerated
- 2019-05-02
- Last updated
- 2025-08-28
- Certified
- 2025-08-20
Frequently asked questions
- What is John Walton's NPI number?
- John Walton's National Provider Identifier (NPI) is 1245895507, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Walton's specialty?
- John Walton is listed in the NPPES registry with a primary specialty of Adult Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Walton located?
- John Walton's practice location on file with NPPES is 4822 S Cottage Grove Ave Ste 4-200, Chicago, IL 60615.
- What is John Walton's phone number?
- The practice phone number listed in the NPPES registry for John Walton is (312) 926-3627.
- Does John Walton accept Medicare?
- John Walton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Walton's NPI active?
- Yes — John Walton's NPI (1245895507) is active in the NPPES registry as of the last update on 2025-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.