Duane L. Mast
Family Medicine Physician · Greenfield, OH
Duane L. Mast is a family medicine physician with a practice address in Greenfield, Ohio, and NPI 1710938170, issued on May 12, 2006. Check the license (Ohio 35053818M, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Duane L. Mast
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 35053818M OH
Self-reported in NPPES; status is on the state search - Practice location
- 550 Mirabeau St, Greenfield, OH 45123
- Phone
- (937) 981-2116
- Enumerated
- May 12, 2006
- Record last updated
- Dec 6, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 0701100 OH
- Entity
- Type 1 · individual
Also registered at 550 Mirabeau St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Deidre Bernard, PT, ATCPhysical Therapist1225523426
- Kristy Bockrath, OTR/L CHTOccupational Therapist1144810656
- Richard Harris, DOInternal Medicine Physician1811945801
- Paul Kolodzik, MDEmergency Medicine Physician1760422869
- Juli Polstra, M.A. CCC-SLPSpeech-Language Pathologist1437793361
- Jornel Rivera, DOInternal Medicine Physician1891753539
Verify Duane L. Mast in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35053818MCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
20 Medicare Part D claims for 13 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 80% of 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.
8 family medicine physician records list a practice address in Greenfield
They are 8 of the 181 NPPES records with a practice address in Greenfield, and 5,606 family medicine physician records in Ohio.
All 8 in Greenfield → All 5,606 in Ohio → Every provider in Greenfield →
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 Duane L. Mast's NPI number?
Duane L. Mast's National Provider Identifier (NPI) is 1710938170, issued on May 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Duane L. Mast located?
The NPPES record lists a practice address at 550 Mirabeau St, Greenfield, OH, 45123. Phone: (937) 981-2116. Providers update this record themselves, so call before visiting.
How can I verify Duane L. Mast's license?
NPPES lists Ohio license number 35053818M, 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 Duane L. Mast prescribe under Medicare Part D?
In 2024, Duane L. Mast had 20 Medicare Part D claims for 13 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.