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Family Practice

Ronald Ringwald, MD

Works at hospitals in Saint Marys, OH · Lima, OH · Ohio

Summary

Ronald Ringwald, MD (Family Practice) is listed by Medicare at 3 hospitals in Saint Marys, OH and Lima, OH. NPI 1912945049. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Ronald Ringwald, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Family PracticePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
33Years since medical school (graduated 1993)
University Of Toledo College Of MedicineMedical school
MaleGender (as listed)
Mercy Health Physicians Lima Specialty Care LLCGroup practice (+1 more)

Quick answers

Which hospitals does Ronald Ringwald work at?
Medicare's official clinician data lists Ronald Ringwald at 3 hospitals: Grand Lake Health System, Lima Memorial Health System and Mercy Health St Ritas Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Ronald Ringwald see patients?
Medicare's clinician data lists 3 practice locations, including Spencerville, OH and Lima, OH. Call before your visit to confirm the address.
What is Ronald Ringwald's specialty?
Medicare lists Family Practice as the primary specialty.
Does Ronald Ringwald accept Medicare assignment?
Yes. Medicare's clinician data says Ronald Ringwald accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Ronald Ringwald offer telehealth?
Medicare's clinician data says Ronald Ringwald offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Ronald Ringwald?
(419) 647-4188, as listed in official Medicare / NPI Registry data.
What is Ronald Ringwald's NPI number?
1912945049. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ronald Ringwald works

Medicare's Facility Affiliation Data lists Ronald Ringwald at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Ronald Ringwald is enrolled with Medicare (CMS data updated 2026-10-02).

  • 424 E 4th StSpencerville, OH 45887 (419) 647‑4188
  • 770 W High St, Suite 450Lima, OH 45801
  • 830 W High St, Suite 390Lima, OH 45801

Group practices

Medicare enrollment lists Ronald Ringwald as a member of these groups (CMS data updated 2026-10-02).

  • Mercy Health Physicians Lima Specialty Care LLC253 clinicians in the group
  • Mercy Health Physicians Lima, LLC55 clinicians in the group

Specialties

Find other Family Practice doctors in Ohio →

Other family doctors in Ohio

Clinicians with the same Medicare primary specialty in Ohio — not a recommendation.

All family doctors in Ohio →

Clinician information

CredentialMD
Medical schoolUniversity Of Toledo College Of Medicine
Graduation year1993
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1912945049
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians