Ronald Alan Ringwald, M.D.
Family Medicine Physician · Spencerville, OH
Ronald Alan 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 Alan 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
- Record last updated
- Aug 21, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (419) 647-4421
- Medicaid ID
- 0218213 OH
- Medicare enrollment
- Enrolled (PECOS I20050317000443); accepts Medicare assignment
- Medical or professional school
- University Of Toledo College Of Medicine, 1993
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,606 in Ohio → Look up another NPI →
Verify Ronald Alan 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 3,544 among the 117,163 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.
Bills Medicare through 2 group practices
- Mercy Health Physicians Lima Specialty Care LLCSpencerville, OH
- Mercy Health Physicians Lima, LLCSpencerville, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ronald Alan Ringwald among 5,606 family medicine physician records in Ohio
Ronald Alan Ringwald, M.D. is one of 5,606 family medicine physician records with a practice address in Ohio. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 18% of them.
- NPI issued2006 · 18% of these records are older, 48% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1993 · median 2005 among the 3,510 with a school on file
- Record last updated2019 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 family medicine physician record lists a practice address in Spencerville
They are 1 of the 18 NPPES records with a practice address in Spencerville, and 5,606 family medicine physician records in Ohio.
All 5,606 in Ohio → Every provider in Spencerville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kenneth Fox, MDSaint Marys, OH 458851588600167
- Andrea Gonzalez, MDSaint Marys, OH 458851437312147
- Dawn McNaughton, MDSaint Marys, OH 458851114980547
- Robert Adams, M.D.Van Wert, OH 458911184605271
- Rebecca Adams, MDVan Wert, OH 458911912988940
- Mark Brown, D.O.St Henry, OH 458831982604880
- Jianming Han, M.D.Van Wert, OH 458911669663159
- Jacob Jones, M.D.Van Wert, OH 458911043270861
Common questions
What is Ronald Alan Ringwald, M.D.'s NPI number?
Ronald Alan 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 Alan 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 Alan 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 Alan Ringwald, M.D. prescribe under Medicare Part D?
In 2024, Ronald Alan Ringwald, M.D. had 16,486 Medicare Part D claims for 748 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.