Mary Katherine Winfield, FNP-C
Family Nurse Practitioner · Painesville, OH
Mary Katherine Winfield, FNP-C is a family nurse practitioner with a practice address in Painesville, Ohio, and NPI 1497156665, issued on Sep 8, 2014. Check the license (Ohio APRN.CNP.021136, as entered in NPPES) with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Katherine Winfield
- Credential
- FNP-C
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- APRN.CNP.021136 OH
RN296003 OH
Self-reported in NPPES; status is on the state search - Practice location
- 462 Chardon St, Painesville, OH 44077
- Phone
- (440) 853-1501
- Enumerated
- Sep 8, 2014
- Record last updated
- Jul 21, 2022
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 9,647 in Ohio → Look up another NPI →
Also registered at 462 Chardon St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Acitelli-Stofan, RNRegistered Nurse1780103309
- Stephanie HiserCase Manager/Care Coordinator1417413956
- Bliss KnightRegistered Nurse1952885113
- John Kozelj, LISW-SSocial Worker1134735780
- Anthony Major, D.D.S.Pediatric Dentistry1881734796
- Lisa MarshMental Health Counselor1780153320
Verify Mary Katherine Winfield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Ohio board licenses this profession
Search for license APRN.CNP.021136Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% more Medicare Part D claims than the average family nurse practitioner in 2024
2,198 Medicare Part D claims for 177 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 19 claims were for opioids.
Most prescribed
- Atorvastatin Calcium171 claims
- Gabapentin104 claims
- Metformin Hcl Er92 claims
- Lisinopril87 claims
- Omeprazole80 claims
- Amlodipine Besylate74 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: $18.68
1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 99,489 providers of this specialty with any payment received $650.95 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.
Mary Katherine Winfield among 9,647 family nurse practitioner records in Ohio
Mary Katherine Winfield, FNP-C is one of 9,647 family nurse practitioner records with a practice address in Ohio. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 22% of them.
- NPI issued2014 · 22% of these records are older, 74% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2022 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 family nurse practitioner records list a practice address in Painesville
They are 13 of the 515 NPPES records with a practice address in Painesville, and 9,647 family nurse practitioner records in Ohio.
All 9,647 in Ohio → Every provider in Painesville → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Samantha Cox, CNPConcord Township, OH 440771497205256
- Allison DowningConcord Twp, OH 440771295279057
- Margaret Henning, MSN, RN, NP-CPainesville, OH 440771164730073
- Jeremy Honaker, PHD,MSN, FNP-C, DCNPConcord Township, OH 440771841672383
- Patricia Kelly, C.N.P.Painesville, OH 440771639362916
- Katherine Novotny, NP-CConcord Twp, OH 440771477671642
- Susan Perdue Schultz, CNPConcord Twp, OH 440771508256975
- Donna Sheahan, CNPPainesville, OH 440771104343631
Common questions
What is Mary Katherine Winfield, FNP-C's NPI number?
Mary Katherine Winfield, FNP-C's National Provider Identifier (NPI) is 1497156665, issued on Sep 8, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Mary Katherine Winfield, FNP-C located?
The NPPES record lists a practice address at 462 Chardon St, Painesville, OH, 44077. Phone: (440) 853-1501. Providers update this record themselves, so call before visiting.
How can I verify Mary Katherine Winfield, FNP-C's license?
NPPES lists Ohio license number APRN.CNP.021136, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Katherine Winfield, FNP-C prescribe under Medicare Part D?
In 2024, Mary Katherine Winfield, FNP-C had 2,198 Medicare Part D claims for 177 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.