Ruth F. Quarles, M.D.
Family Medicine Physician · Cortland, OH
Ruth F. Quarles, M.D. is a family medicine physician with a practice address in Cortland, Ohio, and NPI 1508892811, issued on Jun 26, 2006. Check the license (Ohio 35049709, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Ruth F. Quarles
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 35049709 OH
Self-reported in NPPES; status is on the state search - Practice location
- 2600 State Route 5, Cortland, OH 44410
- Phone
- (330) 372-8800
- Enumerated
- Jun 26, 2006
- Record last updated
- Apr 20, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (330) 372-8999
- Medicaid ID
- 0531446 OH
- Medicare enrollment
- Enrolled (PECOS I20050310000508); accepts Medicare assignment
- Medical or professional school
- Meharry Medical College School Of Medicine, 1981
- Entity
- Type 1 · individual
Also registered at 2600 State Route 5
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Linda Cuculic, M.D.Family Medicine Physician1376573691
- Lynnette Dotson, CNPFamily Nurse Practitioner1770767972
- Mary Fontanarosa, M.D.Internal Medicine Physician1902824188
- Leonard Kanterman, M.D.Internal Medicine Physician1952335622
- Benjamin Kulper, M.D.Internal Medicine Physician1174557854
- Dan Olson, M.D.Internal Medicine Physician1417981077
Verify Ruth F. Quarles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35049709Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average family medicine physician in 2024
70 Medicare Part D claims for 36 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone21 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.
Industry payments in 2024: $19.73
1 payment: food and beverage; the largest payer was Esperion Therapeutics, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Trumbull Mahoning Medical Group, Inc.Cortland, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
6 family medicine physician records list a practice address in Cortland
They are 6 of the 206 NPPES records with a practice address in Cortland, and 5,606 family medicine physician records in Ohio.
All 6 in Cortland → All 5,606 in Ohio → Every provider in Cortland →
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
- Ghassan Abdallah, M.D.Middleburg Heights, OH1265531859
- Karyn Abdallah, M.D.Middleburg Heights, OH1477652816
- Mohamed Abdo, DODelaware, OH1083293229
- Neelab Abdullah, MDCleveland, OH1538806922
- Mohammad AbdulrasoolToledo, OH1053738096
- Johnny Abi-Rached, DOVermilion, OH1548902018
- Katherine Able-Perkins, D.O.Athens, OH1174751143
Common questions
What is Ruth F. Quarles, M.D.'s NPI number?
Ruth F. Quarles, M.D.'s National Provider Identifier (NPI) is 1508892811, issued on Jun 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ruth F. Quarles, M.D. located?
The NPPES record lists a practice address at 2600 State Route 5, Cortland, OH, 44410. Phone: (330) 372-8800. Providers update this record themselves, so call before visiting.
How can I verify Ruth F. Quarles, M.D.'s license?
NPPES lists Ohio license number 35049709, 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 Ruth F. Quarles, M.D. prescribe under Medicare Part D?
In 2024, Ruth F. Quarles, M.D. had 70 Medicare Part D claims for 36 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.