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Ronald Schaefer, M.D.
NPI 1366644502 · Internal Medicine Physician · Sheridan, IL
Ronald Schaefer, M.D. is a Internal Medicine Physician provider in Sheridan, IL (NPI 1366644502).
Provider details
- NPI number
- 1366644502
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(83/100 index)
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
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
4017 E 2603rd Rd
Sheridan, IL 60551-9502
Phone: (773) 343-2164
Fax: (815) 786-2067
Street-level locationGet directions
Mailing address
1306 E Arnold St
Sandwich, IL 60548-1283
Registry dates
- Enumerated
- 2007-06-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ronald Schaefer's NPI number?
- Ronald Schaefer's National Provider Identifier (NPI) is 1366644502, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Schaefer's specialty?
- Ronald Schaefer is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Schaefer located?
- Ronald Schaefer's practice location on file with NPPES is 4017 E 2603rd Rd, Sheridan, IL 60551-9502.
- What is Ronald Schaefer's phone number?
- The practice phone number listed in the NPPES registry for Ronald Schaefer is (773) 343-2164.
- Is Ronald Schaefer's NPI active?
- Yes — Ronald Schaefer's NPI (1366644502) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.