Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Ronald Alan Ringwald, MD

Individual provider Family Medicine Physician · NPI 1912945049

Dr. Ronald Alan Ringwald, MD is registered under Family Practice in Spencerville, Ohio. Graduated from University of Toledo College of Medicine in 1993, 33 years ago. Practices with Mercy Health Physicians Lima, LLC, a 54-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Ohio.

Years since qualifying
33
Trained at
University of Toledo College of Medicine
Licensed in
OH
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

107 N Canal St
Spencerville, OH 45887-1121
Phone: (419) 647-4188
Fax: (419) 647-4421
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 35067497 (OH)

Record details

NPI number1912945049
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 2, 2006
Last updated in NPPESAugust 21, 2019

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF TOLEDO COLLEGE OF MEDICINE
Graduated 1993 (33 years in practice)
Group practice Mercy Health Physicians Lima, Llc — 54 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of nail tissue 1–10 times
Removal of skin lesions 1–10 times
Removal or shaving of skin growth 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients437
Services billed 4,885 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Mercy Health St Ritas Medical Center Hospital · Lima, OH · listed as Mercy Health-St Ritas Medical Center LLC
  • Fountain Park Home Care, Llc Home health agency · Van Wert, OH
  • Legacy Hospice Inc Hospice · Lima, OH · listed as Legacy Hospice, Inc
  • Roselawn Manor Nursing home · Spencerville, OH · listed as Hcf of Roselawn, Inc
  • Grand Lake Health System Hospital · Saint Marys, OH
  • Lima Memorial Health System Hospital · Lima, OH
  • Mercy Health-Home Health, Lima Home health agency · Lima, OH

Colleagues at Mercy Health Physicians Lima, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 54 clinicians in the practice; 12 are shown here.

Other providers in Spencerville