Trayton B. Mains, D.O
Rheumatology Physician · Lima, OH
Trayton B. Mains, D.O is a rheumatology physician with a practice address in Lima, Ohio, and NPI 1720217383, issued on Jul 3, 2009. Check the license (Ohio 34012761, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Trayton B. Mains
- Credential
- D.O
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- 34012761 OH
03663 KY
Self-reported in NPPES; status is on the state search - Practice location
- 825 W Market St Ste 260, Lima, OH 45805
- Phone
- (419) 996-4003
- Enumerated
- Jul 3, 2009
- Record last updated
- May 17, 2022
- Fax
- (419) 996-5276
- Medicaid IDs
- 7100305420 KY
0106624 OH - Medicare enrollment
- Enrolled (PECOS I20170815004629); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 825 W Market St Ste 260
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Courtney GilbergNurse Practitioner1295443364
- Deena Hassuna, MDRheumatology Physician1023253077
- Ashley Lee, CNPFamily Nurse Practitioner1144730714
- Brittany Leininger, NPFamily Nurse Practitioner1093168916
- Amy Mestemaker, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1831180959
- Joel Shanklin, MDPlastic and Reconstructive Surgery Physician1851398580
Verify Trayton B. Mains in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 34012761Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% more Medicare Part D claims than the average rheumatology physician in 2024
3,137 Medicare Part D claims for 606 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 39 claims were for opioids.
Most prescribed
- Methotrexate599 claims
- Prednisone462 claims
- Leflunomide373 claims
- Hydroxychloroquine Sulfate226 claims
- Sulfasalazine200 claims
- Mycophenolate Mofetil157 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.
The MIPS final score for 2023 (Medicare payment program): 74.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Mercy Health Physicians Lima Specialty Care LLCLima, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rheumatology Physician providers in Ohio
There are 289 rheumatology physician records in Ohio.
Other rheumatology physician records in Ohio
- Abby Abelson, M.D.Cleveland, OH1417919143
- Aya Abugharbyeh, MDToledo, OH1497240667
- Mohammed Abusamieh, M.DToledo, OH1174506109
- Tara Adhikari, MDBlue Ash, OH1508068594
- Mohammed Ahmed, M.D.Toledo, OH1093763930
- Ali Ajam, MDColumbus, OH1841313517
- Feyrouz Al-Ashkar, M. D.Cleveland, OH1235192311
- Mohamed Alalwani, M.D.Westlake, OH1013297225
- Chacko Alappatt, M.D.Miamisburg, OH1477584399
- Zeenat Ali, MDCincinnati, OH1821224692
Common questions
What is Trayton B. Mains, D.O's NPI number?
Trayton B. Mains, D.O's National Provider Identifier (NPI) is 1720217383, issued on Jul 3, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Trayton B. Mains, D.O located?
The NPPES record lists a practice address at 825 W Market St Ste 260, Lima, OH, 45805. Phone: (419) 996-4003. Providers update this record themselves, so call before visiting.
How can I verify Trayton B. Mains, D.O's license?
NPPES lists Ohio license number 34012761, 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 Trayton B. Mains, D.O prescribe under Medicare Part D?
In 2024, Trayton B. Mains, D.O had 3,137 Medicare Part D claims for 606 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Trayton B. Mains, D.O's MIPS final score?
The 2023 MIPS final score is 74.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.