Ronald Ringwald, M.D.
Family Medicine Physician · Spencerville, OH
Ronald Ringwald, M.D. is a family medicine physician with a practice address in Spencerville, Ohio, and NPI 1912945049, issued on Jun 2, 2006. Check the license (Ohio 35067497, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Ronald Ringwald
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 35067497 OH
Self-reported in NPPES; status is on the state search - Practice location
- 107 N Canal St, Spencerville, OH 45887
- Phone
- (419) 647-4188
- Enumerated
- Jun 2, 2006
- Entity
- Type 1 · individual
Verify Ronald Ringwald in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35067497Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
4.7 times the Medicare Part D claims of the average family medicine physician in 2024
16,486 Medicare Part D claims for 748 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 390 claims were for opioids.
Most prescribed
- Atorvastatin Calcium654 claims
- Levothyroxine Sodium540 claims
- Lisinopril501 claims
- Amlodipine Besylate488 claims
- Metformin Hcl435 claims
- Omeprazole418 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
2 hospital and facility affiliations
- Mercy Health Physicians Lima Specialty Care LLCSpencerville, OH
- Mercy Health Physicians Lima, LLCSpencerville, OH
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
1 family medicine physician records list a Spencerville practice address
They are 1 of the 18 NPPES records with a Spencerville practice address, and 5,361 family medicine physician records in Ohio.
Other family medicine physician records in Ohio
- John Philamer Abad, M.D.Westerville, OH1356376800
- Katarina Abadie, M.D.Solon, OH1760917447
- Heeran Abawi, M.D.Fairfield, OH1932337649
- Zena Abd-AlahadToledo, OH1659878239
- Ghassan Abdallah, M.D.Middleburg Heights, OH1265531859
- Karyn Abdallah, M.D.Middleburg Heights, OH1477652816
- Mohamed Abdo, DODelaware, OH1083293229
- Neelab Abdullah, MDCleveland, OH1538806922
- Johnny Abi-Rached, DOVermilion, OH1548902018
- Katherine Able-Perkins, D.O.Athens, OH1174751143
Common questions
What is Ronald Ringwald, M.D.'s NPI number?
Ronald Ringwald, M.D.'s National Provider Identifier (NPI) is 1912945049, issued on Jun 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Ringwald, M.D. located?
The NPPES record lists a practice address at 107 N Canal St, Spencerville, OH, 45887. Phone: (419) 647-4188. Providers update this record themselves, so call before visiting.
How can I verify Ronald Ringwald, M.D.'s license?
NPPES lists Ohio license number 35067497, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ronald Ringwald, M.D. prescribe under Medicare Part D?
In 2024, Ronald Ringwald, M.D. had 16,486 Medicare Part D claims for 748 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.